2013年7月29日星期一
DIAGNOSE – BATTERY DIES DURING START ATTEMPT
SYMPTOM SUMMARY
The battery goes dead or will not start the vehicle. The engine may crank slowly for a short period then fail to crank over.
USUAL CAUSE
The battery provides the necessary energy to start the vehicle. The ignition switch will route power from the battery to the starter motor to crank the engine. Once the engine is started, the alternator will re-charge the battery and provide the necessary electrical power to operate the vehicle’s electrical system. If the alternator is defective, the battery will not recharge once the engine is started. If there is an electrical load that is on such as a glove box or courtesy light that remains on at all times, this will also drain the battery over an extended period of time. Batteries can also fail internally which can cause them to self discharge.
DIAGNOSIS
If the engine can be started via a jump start and the battery light comes on, you should suspect a failure in the charging system. You should refer to the article “Battery Light On” on this website for diagnosis of this symptom. It will be necessary to determine whether the battery is defective or there is some electrical load on the battery causing it to drain over an extended period of time. Most repair shops or part stores can charge and test the battery for a nominal fee. This should be the first step in the diagnosis. You should also inspect for electrical loads that are present even after the vehicle is shut off. The hood, trunk, and glove box lamp should be inspected to ensure they are off when the corresponding door is closed. Temporarily removing the bulb to determine if the symptom is eliminated can isolate which circuit is the cause.
Source: http://www.auto-repair-help.com/auto_diagnostics/diagnose_battery_dies_during_start_attempt.php
2013年7月28日星期日
Autocom CDP Professional Diagnostics For Cars & Trucks
The professional compact diagnostic solution
Autocom CDP is a diagnostic tool used wirelessly with a PC or Pocket PC, making it a powerful and
fexible tool for all vehicle shops, feet owners, vehicle testing, road service, police and armed
forces. The software chosen includes comprehensive databases of OBD functions for a wide range of
motor vehicles. Note that it is the same hardware for both passenger cars and commercial vehicles.
Options such as electrical diagrams and functional descriptions can be added to the program.
OBD Diagnosis od CDP
The OBD database includes among others the following systems: Engine, Gearbox, Service, SRS,
Instruments, ABS, Climate control, Body control etc. To obtain the most recent application list for
each database, visit: www.autocom.se/support/downloads
Autocom CDP Features
• User-friendly and intuitive software for passenger cars, light and heavy commercial vehicles.
• Fast and safe identifi cation of vehicles and systems
• Bluetooth and USB connectivity are standard (W-LAN available on request)
• Software on DVD and the internet for PC or SD card for PPC
• User licence with regular updates
• Quick and easy installation
• Handles all today known communications standards for vehicle diagnostics
• Help texts for available functions
Basic Equipment
Autocom CDP comes with the following equipment:
• CDP with 16-pin OBD cable (SAE J1962) for both 12 and 24 Volts
• Software on DVD and SD card
• USB cable
• Database with a one year user license with updates for selected software (passenger cars or
commercial vehicles)
Cable Kit
Autocom CDP can also be supplied with complete OBD adapter cable kits for vehicles which do not
have 16-pin (J1962) diagnostic socket, including Volkswagen, Seat, Skoda, Audi, Fiat, Alfa, Lancia,
Opel, Saab, Volvo, BMW, Peugeot, Citroen, Mercedes, Renault, Ford, MAN, DAF, Scania and others
Features
• OBD/OBDII/EOBD communication for statutory readout of the emissions related systems
• Read and erase fault codes
• Read real time data
• Adjustment features
• Restoring service messages
• Programming features such as: injectors, keys, remote controls etc.
• Unique multiplex technology that minimizes the need for special cables
System Requirements for PC and PPC, please visit: www.autocom.se/support/manual
Distributors
Information regarding our distributors can be found at www.autocom.se
2013年7月26日星期五
NEW: Launch BST-460 Battery Tester
Highlights and Notice of Launch BST-460
1.Attention: This product not sell to UK, other country no problem.
2.Languages: Chinese/English/Russian
3.The world's most advanced conductance test technology
4.Scope: suitable for 6V & 12V battery system and 12V & 24V starting and charging system detects
Main Parameters
1 Shell ABS anti - acid plastic,two-tone green rubber oil ;
2.128 * 64 dot matrix,large backlit display screen (3 inches ),adjustable backlight brightness LCD display ;
3 test standards,including the most commonly used battery standard in the world,such as CCA, BCI,CA,MCA,JIS,DIN,IEC,EN,SAE,GB
4 Operating temperature:-20-60 ℃ (-4-140 ℉)
Now Price: $148.90
Advantage of Launch BST-460
Simple, secure , fast , and accurate display test results ( the test takes about 3 seconds)
Eight lines with backlight LCD display and humane language prompted interface
Does not emit light , no heat , no discharge , no spark , no operating dangerous
Automatic temperature compensation function With ripple voltage test function Multi- language menu display
Removable replacement test line
Dedicated Kelvin test clip
Advanced Functionality
Applicable to a variety of models, all kinds of batteries , and a variety of system mode
Directly detected in the car , do not need to remove the battery
Directly test the battery of the loss of electricity , bad cell battery
Test Criteria and Scope
CCA 100-2000 (SAE & BCI to develop the standard most commonly used : the cold-start battery rating )
BCI 100-2000 ( international battery Committee standards )
CA 100-2000 (0 ℃ when the effective starting current rating)
MCA 100-2000 ( ships standard effective starting current rating , 0 ℃ )
JIS 26A17 - 245H52 ( Japanese Industrial Standard)
Standard DIN 100-1400 ( German Automobile Industry Committee )
The IEC 100-1400 ( International Electrotechnical Commission.
2013年7月24日星期三
The Introduction to NEXIQ
NEXIQ 125032 USB Link + Software Diesel Truck Interface and Software with All Installers
NEXIQ Features
1. NEXIQ is compatible with applications that diagnose engines, transmissions, ABS, instrument panels and more.
2. It will reduce the reprogramming times with direct USB connection
3. Mixed fleet capabilities with broad protocol support
3. NEXIQ can access to vehicle data for maintenance or management reports quickly
4. Quickly attaches to vehicle’s diagnostic connector.
5. Easy portability increases flexibility, may be used with desktop PC or laptop.
Specifications
RP1210A, RP1210B, and J2534 API support
USB vehicle-to-PC connectivity
Protocol coverage for automotive to heavy duty vehicles:
CAN - J1939/CAN125/CAN250/CAN500/CAN1000
2nd CAN - J1939/CAN125/CAN250/CAN500/CAN1000
Automatic bit rate detection for both CAN channels
J1587/J1708
J1850
ISO 15765 (Diagnostic CAN)
ISO 14230 (KWP2000 over ISO9141)
J2534
ALDL
ATEC 160 (160 baud)
Support windows xp and windows 7(international, isuzu softwares used in XP only)
What software NEXIQ 125032 USB Link packed with?
- Allison (Included!)
- Bendix 6.3.8.0 (Included!)
- Detroit Diesel DDDL 7.05 ((Included!)
- Detroit Diesel DDCT (Included!)
- Detroit Diesel Calibration Tool (Included!)
- Eaton Service Ranger 3.2 (Included!)
- International DLB (Included!)
- International ICAP, IPTS, NETS, IPC (Included!)
- International Master Diagnostic (Incluided!)
- Meritor and Wabco Diagnostics (Included!)
- Cummins Insite 7.5 (Included!)
- Hino 2.0.3. (Included!)
- Caterpillar 2.0.1.0 (Included!)
- Perkins EST 2010B (Included!)
- V Macks 2.6.12 (Included!)
- V Macks Dealer Pro (Included!)
- Volvo VCADS 2.35.10 (Included!)
If you want to learn how the setup NEXIQ Software, please visit http://www.youtube.com/user/shopobd2. You can learn the setup videos here.
NEXIQ Features
1. NEXIQ is compatible with applications that diagnose engines, transmissions, ABS, instrument panels and more.
2. It will reduce the reprogramming times with direct USB connection
3. Mixed fleet capabilities with broad protocol support
3. NEXIQ can access to vehicle data for maintenance or management reports quickly
4. Quickly attaches to vehicle’s diagnostic connector.
5. Easy portability increases flexibility, may be used with desktop PC or laptop.
Specifications
RP1210A, RP1210B, and J2534 API support
USB vehicle-to-PC connectivity
Protocol coverage for automotive to heavy duty vehicles:
CAN - J1939/CAN125/CAN250/CAN500/CAN1000
2nd CAN - J1939/CAN125/CAN250/CAN500/CAN1000
Automatic bit rate detection for both CAN channels
J1587/J1708
J1850
ISO 15765 (Diagnostic CAN)
ISO 14230 (KWP2000 over ISO9141)
J2534
ALDL
ATEC 160 (160 baud)
Support windows xp and windows 7(international, isuzu softwares used in XP only)
What software NEXIQ 125032 USB Link packed with?
- Allison (Included!)
- Bendix 6.3.8.0 (Included!)
- Detroit Diesel DDDL 7.05 ((Included!)
- Detroit Diesel DDCT (Included!)
- Detroit Diesel Calibration Tool (Included!)
- Eaton Service Ranger 3.2 (Included!)
- International DLB (Included!)
- International ICAP, IPTS, NETS, IPC (Included!)
- International Master Diagnostic (Incluided!)
- Meritor and Wabco Diagnostics (Included!)
- Cummins Insite 7.5 (Included!)
- Hino 2.0.3. (Included!)
- Caterpillar 2.0.1.0 (Included!)
- Perkins EST 2010B (Included!)
- V Macks 2.6.12 (Included!)
- V Macks Dealer Pro (Included!)
- Volvo VCADS 2.35.10 (Included!)
If you want to learn how the setup NEXIQ Software, please visit http://www.youtube.com/user/shopobd2. You can learn the setup videos here.
2013年7月21日星期日
General Information of OBDII Tools
Safety Precautions and Warnings
To prevent personal injury or damage to vehicles and/or the scan tool, read this instruction manual first and observe the following safety precautions at a minimum whenever working on a vehicle:
>Always perform automotive testing in a safe environment.
>Wear safety eye protection that meets ANSI standards.
>Keep clothing, hair, hands, tools, test equipment, etc. away from all moving or hot engine parts.
>Operate the vehicle in a well ventilated work area: Exhaust gases are poisonous.
>Put blocks in front of the drive wheels and never leave the vehicle unattended while running tests.
>Use extreme caution when working around the ignition coil, distributor cap, ignition wires and spark plugs. These components create hazardous voltages when the engine is
running.
>Put the transmission in PARK (for automatic transmission) or NEUTRAL (for manual transmission) and make sure the parking brake is engaged.
>Keep a fire extinguisher suitable for gasoline/chemical/ electrical fires nearby.
>Don’t connect or disconnect any test equipment while the ignition is on or the engine is running.
>Keep the scan tool dry, clean, free from oil/water or grease. Use a mild detergent on a clean cloth to clean the outside of the scan tool, when necessary.
On-Board Diagnostics (OBD) II
The first generation of On-Board Diagnostics (called OBD I) was developed by the California Air Resources Board (ARB) and implemented in 1988 to monitor some of the emission control components on vehicles. As technology evolved and the desire to improve the On-Board Diagnostic system increased, a new generation of On-Board Diagnostic system was developed. This second generation of On-Board Diagnostic regulations is called "OBD II".
The OBD II system is designed to monitor emission control systems and key engine components by performing either continuous or periodic tests of specific components and vehicle conditions. When a problem is detected, the OBD II system turns on a warning lamp (MIL) on the vehicle instrument panel to alert the driver typically by the phrase of “Check Engine” or “Service Engine Soon”. The system will also store important information about the detected malfunction so that a technician can accurately find and fix the problem. Here below follow three pieces of such valuable information:
1) Whether the Malfunction Indicator Light (MIL) is commanded 'on' or 'off';
2) Which, if any, Diagnostic Trouble Codes (DTCs) are stored;
3) Readiness Monitor status.
Diagnostic Trouble Codes (DTCs)
OBD II Diagnostic Trouble Codes are codes that are stored by the on-board computer diagnostic system in response to a problem found in the vehicle.
These codes identify a particular problem area and are intended to provide you with a guide as to where a fault might be occurring within a vehicle.
OBD II Diagnostic Trouble Codes consists of a five-digit alphanumeric code. The first character, a letter, identifies which control system sets the code. The other four characters, all numbers, provide additional information on where the DTC originated and the operating conditions that caused it to set.
Location of the Data Link Connector (DLC)
The DLC (Data Link Connector or Diagnostic Link Connector) is the standardized 16-cavity connector where diagnostic scan tools interface with the vehicle's on-board computer. The DLC is usually located 12 inches from the center of the instrument panel (dash),
under or around the driver’s side for most vehicles. If Data Link Connector is not located under dashboard, a label should be there telling location. For some Asian and European vehicles, the DLC is located behind the ashtray and the ashtray must be removed to access
the connector. If the DLC cannot be found, refer to the vehicle’s service manual for the location.
OBD II Readiness Monitors
An important part of a vehicle’s OBD II system is the Readiness Monitors, which are indicators used to find out if all of the emissions components have been evaluated by the OBD II system. They are running periodic tests on specific systems and components to ensure
that they are performing within allowable limits.
Currently, there are eleven OBD II Readiness Monitors (or I/M Monitors) defined by the U.S. Environmental Protection Agency (EPA). Not all monitors are supported by all vehicles and the exact number of monitors in any vehicle depends on the motor vehicle manufacturer’s emissions control strategy.
Continuous Monitors -- Some of the vehicle components or systems are continuously tested by the vehicle’s OBD II system, while others are tested only under specific vehicle operating conditions. The continuously monitored components listed below are always ready:
1)Misfire
2)Fuel System
3)Comprehensive Components (CCM)
Once the vehicle is running, the OBD II system is continuously checking the above components, monitoring key engine sensors, watching for engine misfire, and monitoring fuel demands.
Non-Continuous Monitors -- Unlike the continuous monitors, many emissions and engine system components require the vehicle to be operated under specific conditions before the monitor is ready. These monitors are termed non-continuous monitors. For different ignition type engines, the available monitors are different too.
The following monitors are to be used for spark ignition engines only:
1) EGR System
2) O2 Sensors
3) Catalyst
4) Evaporative System
5) O2 Sensor Heater
6) Secondary air
7) Heated Catalyst
The following monitors are to be used for compression ignition engines only:
1) EGR System
2) NMHC Catalyst
3) NOx aftertreatment
4) Boost pressure system
5) Exhaust gas sensor
6) PM filter
OBD II Monitor Readiness Status
OBD II systems must indicate whether or not the vehicle’s PCM’s monitor system has completed testing on each component.
Components that have been tested will be reported as “Ready”, or “Complete”, meaning they have been tested by the OBD II system.
The purpose of recording readiness status is to allow inspectors to determine if the vehicle’s OBD II system has tested all the components and/or systems.
The power-train control module (PCM) sets a monitor to “Ready” or “Complete” after an appropriate drive cycle has been performed. The drive cycle that enables a monitor and sets readiness codes to “Ready” varies for each individual monitor. Once a monitor is set as “Ready”
or “Complete”, it will remain in this state. A number of factors, including erasing of diagnostic trouble codes (DTCs) with a scan tool or a disconnected battery, can result in Readiness Monitors being set to “Not Ready”. Since the three continuous monitors are constantly evaluating, they will be reported as “Ready” all of the time. If testing of a particular supported non-continuous monitor has not been completed, the monitor status will be reported as “Not Complete” or “Not Ready.”
In order for the OBD monitor system to become ready, the vehicle should be driven under a variety of normal operating conditions. These operating conditions may include a mix of highway driving and stop and go, city type driving, and at least one overnight-off period.
For specific information on getting your vehicle’s OBD monitor system ready, please consult your vehicle owner’s manual.
OBD II Definitions
Power-train Control Module (PCM) -- OBD II terminology for the on-board computer that controls engine and drive train.
Malfunction Indicator Light (MIL) -- Malfunction Indicator Light (Service Engine Soon, Check Engine) is a term used for the light on the instrument panel. It is to alert the driver and/or the repair technician that there is a problem with one or more of vehicle's
systems and may cause emissions to exceed federal standards. If the MIL illuminates with a steady light, it indicates that a problem has been detected and the vehicle should be serviced as soon as possible.
Under certain conditions, the dashboard light will blink or flash. This indicates a severe problem and flashing is intended to discourage vehicle operation. The vehicle onboard diagnostic system cannot turn the MIL off until necessary repairs are completed or the condition no
longer exists.
DTC -- Diagnostic Trouble Codes (DTC) that identify which section of the emission control system has malfunctioned.
Enabling Criteria -- Also termed Enabling Conditions. They are the vehicle-specific events or conditions that must occur within the engine before the various monitors will set, or run. Some monitors require the vehicle to follow a prescribed “drive cycle” routine as part of the enabling criteria. Drive cycles vary among vehicles and for each monitor in any particular vehicle.
OBD II Drive Cycle -- A specific mode of vehicle operation that provides conditions required to set all the readiness monitors applicable to the vehicle to the “ready” condition. The purpose of completing an OBD II drive cycle is to force the vehicle to run its onboard diagnostics. Some form of a drive cycle needs to be performed after DTCs have been erased from the PCM’s memory or after the battery has been disconnected. Running through a vehicle’s complete drive cycle will “set” the readiness monitors so that future faults can be detected. Drive cycles vary depending on the vehicle and the monitor that needs to be reset. For vehicle specific drive cycle, consult the vehicle’s Owner’s Manual.
Freeze Frame Data -- When an emissions related fault occurs, the OBD II system not only sets a code but also records a snapshot of the vehicle operating parameters to help in identifying the problem. This set of values is referred to as Freeze Frame Data and may include
important engine parameters such as engine RPM, vehicle speed, air flow, engine load, fuel pressure, fuel trim value, engine coolant temperature, ignition timing advance, or closed loop status.
MS409 Update Instructions
While updating MS409, you will need to install MaxiLink program first. Please follow the steps below to do the update.
1. Install MaxiLink in your computer.
You can find this file in the CD came with your scan tool.
2. Connect MS409 to your PC with the update cable.
3. If the connection is fine, you will find the status bar at the top of MaxiLink window become green.
4. Click “Select File” on the MaxiLink window to locate the update file.
5. Click “Update” to begin updating your tool. When update is done, the MaxiLink will pop up a message.
6. Power off the tool then on again to finish the update.
NOTE: The DTC Lib Update is a little different from the program update. Please follow the
instructions in the window to do.
2013年7月17日星期三
Delphi DS150E 2013 Release 1
Delphi DS150E 2013 Release 1 takes all the functionality and coverage of the DS100E (Autocom CDP) and transfers it onto a PC platform. Using the latest Bluetooth wireless technology, it supports diagnostics on around 54,000 vehicle systems and faster. On more than 4000 models from over 48 Vehicle Manufacturers. Full system coverage for BMW, VAG, Ford, Peugeot, Citroen, Renault, Vauxhall, Rover, Fiat, Volvo, Mazda, Mercedes, Smart, Nissan, Subaru, Toyota, Hyundai…and more!
Videos: Delphi Diagnostic Tool With Bluetooth
Features of Delphi DS150E
1.Bluetooth© Vehicle Communication Interfaces
2.Keeping update (the newest one Delphi 2013 release 2), compatibility better than autocom CDP.
3.New design and new Hardware, faster diagnose.
4.More the 4000 models from over 48 Vehicle Manufacturer.Including 85% European models
5.Exceptional value for money – operates from a garages existing PC
6.Full-service support available, including training programs, a technical help line and more
Languages
English , Cesky, Dansk, Deutsch, Espanol, Francais, Greek, Hollands, Hungarian, Italiano, Norsk, Polish, Romania,Russian, Srpski, Suomen kieli, Svenska, Turkish and so on.
For more Autocom Scanners, please visit shopobd2.com.
2013年7月16日星期二
How Brakes Work
We all know that pushing down on the brake pedal slows a car to a stop. But how does this happen? How does your car transmit the force from your leg to its wheels? How does it multiply the force so that it is enough to stop something as big as a car?
When you depress your brake pedal, your car transmits the force from your foot to its brakes through a fluid. Since the actual brakes require a much greater force than you could apply with your leg, your car must also multiply the force of your foot. It does this in two ways:
Mechanical advantage (leverage)
Hydraulic force multiplication
The brakes transmit the force to the tires using friction, and the tires transmit that force to the road using friction also. Before we begin our discussion on the components of the brake system, we'll cover these three principles:
Leverage
Hydraulics
Friction
We'll discuss leverage and hydraulics in the next section.
Leverage and Hydraulics
In the figure below, a force F is being applied to the left end of the lever. The left end of the lever is twice as long (2X) as the right end (X). Therefore, on the right end of the lever a force of 2F is available, but it acts through half of the distance (Y) that the left end moves (2Y). Changing the relative lengths of the left and right ends of the lever changes the multipliers.
The basic idea behind any hydraulic system is very simple: Force applied at one point is transmitted to another point using an incompressible fluid, almost always an oil of some sort. Most brake systems also multiply the force in the process. Here you can see the simplest possible hydraulic system:
Simple hydraulic system
In the figure above, two pistons (shown in red) are fit into two glass cylinders filled with oil (shown in light blue) and connected to one another with an oil-filled pipe. If you apply a downward force to one piston (the left one, in this drawing), then the force is transmitted to the second piston through the oil in the pipe. Since oil is incompressible, the efficiency is very good -- almost all of the applied force appears at the second piston. The great thing about hydraulic systems is that the pipe connecting the two cylinders can be any length and shape, allowing it to snake through all sorts of things separating the two pistons. The pipe can also fork, so that one master cylinder can drive more than one slave cylinder if desired, as shown in here:
Master cylinder with two slaves
The other neat thing about a hydraulic system is that it makes force multiplication (or division) fairly easy. If you have read How a Block and Tackle Works or How Gear Ratios Work, then you know that trading force for distance is very common in mechanical systems. In a hydraulic system, all you have to do is change the size of one piston and cylinder relative to the other, as shown here:
Hydraulic multiplication
To determine the multiplication factor in the figure above, start by looking at the size of the pistons. Assume that the piston on the left is 2 inches (5.08 cm) in diameter (1-inch / 2.54 cm radius), while the piston on the right is 6 inches (15.24 cm) in diameter (3-inch / 7.62 cm radius). The area of the two pistons is Pi * r2. The area of the left piston is therefore 3.14, while the area of the piston on the right is 28.26. The piston on the right is nine times larger than the piston on the left. This means that any force applied to the left-hand piston will come out nine times greater on the right-hand piston. So, if you apply a 100-pound downward force to the left piston, a 900-pound upward force will appear on the right. The only catch is that you will have to depress the left piston 9 inches (22.86 cm) to raise the right piston 1 inch (2.54 cm).
Next, we'll look at the role that friction plays in brake systems.
Friction
Friction is a measure of how hard it is to slide one object over another. Take a look at the figure below. Both of the blocks are made from the same material, but one is heavier. I think we all know which one will be harder for the bulldozer to push.
To understand why this is, let's take a close look at one of the blocks and the table:
Even though the blocks look smooth to the naked eye, they are actually quite rough at the microscopic level. When you set the block down on the table, the little peaks and valleys get squished together, and some of them may actually weld together. The weight of the heavier block causes it to squish together more, so it is even harder to slide.
Different materials have different microscopic structures; for instance, it is harder to slide rubber against rubber than it is to slide steel against steel. The type of material determines the coefficient of friction, the ratio of the force required to slide the block to the block's weight. If the coefficient were 1.0 in our example, then it would take 100 pounds of force to slide the 100-pound (45 kg) block, or 400 pounds (180 kg) of force to slide the 400-pound block. If the coefficient were 0.1, then it would take 10 pounds of force to slide to the 100-pound block or 40 pounds of force to slide the 400-pound block.
So the amount of force it takes to move a given block is proportional to that block's weight. The more weight, the more force required. This concept applies for devices like brakes and clutches, where a pad is pressed against a spinning disc. The more force that presses on the pad, the greater the stopping force.
COEFFICIENTS
An interesting thing about friction is that it usually takes more force to break an object loose than to keep it sliding. There is a coefficient of static friction, where the two surfaces in contact are not sliding relative to each other. If the two surfaces are sliding relative to each other, the amount of force is determined by the coefficient of dynamic friction, which is usually less than the coefficient of static friction.
For a car tire, the coefficient of dynamic friction is much less than the coefficient of static friction. The car tire provides the greatest traction when the contact patch is not sliding relative to the road. When it is sliding (like during a skid or a burnout), traction is greatly reduced.
A Simple Brake System
Before we get into all the parts of an actual car brake system, let's look at a simplified system:
You can see that the distance from the pedal to the pivot is four times the distance from the cylinder to the pivot, so the force at the pedal will be increased by a factor of four before it is transmitted to the cylinder.
You can also see that the diameter of the brake cylinder is three times the diameter of the pedal cylinder. This further multiplies the force by nine. All together, this system increases the force of your foot by a factor of 36. If you put 10 pounds of force on the pedal, 360 pounds (162 kg) will be generated at the wheel squeezing the brake pads.
There are a couple of problems with this simple system. What if we have a leak? If it is a slow leak, eventually there will not be enough fluid left to fill the brake cylinder, and the brakes will not function. If it is a major leak, then the first time you apply the brakes all of the fluid will squirt out the leak and you will have complete brake failure.
The master cylinder on modern cars is designed to deal with these potential failures. Be sure to check out the article on How Master Cylinders and Combination Valves Work, and the rest of the articles in the brake series (see the links on the next page), to learn more.
I get this wonderful article from http://www.howstuffworks.com
2013年7月14日星期日
Ten Best Sellers of OBDII Tools
1. Autocom CDP+ for Cars/Trucks and OBD2 (New Verison 2013 Release1)
Autocom CDP+ is a diagnostic tool used with a PC or Pocket PC and powerful CARS Diagnostic software, making it a powerful and flexible tool for all vehicle shops, fleet owners, vehicle testing, road service, police and armed forces.
Autocom CDP+ is a quick and reliable diagnostic tool serving as a link between vehicle and computer. It works on both old and new vehicles.
Simply connect autocom CDP+ to the diagnostic socket in the vehicle and it will communicate with the diagnostic software installed on your PC.
Autocom's Official Website: http://autocom.se/
2. Diagun Launch X431
X431 Diagun is a specially designed diagnostic tool for automotive technicians. It is the only one tool which can test two vehicles at the same time.
Launch Diagun is small and easy to use with bluetooth connections via a hub plugged into the vehicle OBD making it extremely mobile.
The diagun comes from one of the most popular manufacturers of diagnostic equipment in
the world - LAUNCH.
3. Tacho Pro 2008 Universal Dash Programmer
Tacho Universal is the most sold programming-device for digital speedometers worldwide. The system is a high-quality tool, which offers a maximum of flexibility and working comfort despite simplest operation. You can serve almost any vehicle with the Tacho Universal.
Fully support European, American and Asian vehicle types, most of which can be adjusted via OBD-II diagnostic plug.
BEN Z A/C/CL/CLK/E/G/M/SL/SLK class (before 2000) New E/C class adopt CAN cable technology, cluster-socket operation (no need to adjust EIS/EZS)
Most of for BMW 3/5/7/8/X/Z class vehicles, include operation on EWS, LCM can be adjusted via OBD-II diagnostic plug.
All VW/AUDI vehicles, include A6L A8L Q7
A part of OPEL, SKODA, SEAT
Some American vehicles
Other Euro-American vehicle types: Peugeot, Renault, Volvo, Citroen, Alfa, Porsche.
4. MaxiDiag® Elite MD802 For All System
MaxiDiag® Elite MD802 is designed for technicians to troubleshoot either the basic all systems for most of major vehicles on the road today.
With the optional OBD-I adapter set, The MaxiDiag® Elite MD802 can diagnose older vehicles. makes your vehicle service experience much more pleasant! One tool can do it all-reads and clears trouble codes on either the basic 4 systems ( Engine, Transmission, ABS and airbag ) or all the systems
You can visit Autel's Official Website to read more.
5. GM Tech2 Diagnostic Scanner
The Tech-2 is the same tester GM Technicians use to diagnose GM vehicles. The Vetronix Tech 2 comes with Authentic GM software and provides support for on-board diagnostics on all GM systems 1992 thru 2010.
Car model supported: GM/SAAB/OPEL/SUZUKI/ISUZU/HOLDEN
An industry change in protocol from OBD II to Controller Area Network (CAN) has begun. In order to perform diagnostics on a vehicle that uses the CAN interface; you will need the Tech 2 Flash and a CAN diagnostic interface module. The module connects between the Tech 2 Flashs diagnostic link cable and the OBD adapter. Once the module is connected, it can be used on all GM vehicle applications,even those vehicles using other platforms such as OBD I and OBD II.
6. Renault Can Clip V129 Diagnostic Tool
Renault CAN Clip Diagnostic Interface V129 is designed to diagnose Renault cars models including automatically test all Renault models' computers,reporgramming,airbag test and other functions.The newest version is V129, and it supports multiple languages.
Languages:
English,German,Brazil,Denish,Spanish,Finnish,French,Italian,Norwegian,Dutch,Portuguese,Romania,Swedish.
see the following pictures shows.
7. Lexia 3 PP2000
Unlike other universal car scanner tools which only read fault codes; this software performs nearly ALL the functions like the original dealer diagnostic tool. Our diagnostic interface contains K-Line multiplexor, CAN-BUS interfaces and SAE J1850 bus (both PWM and VPW).
Lexia 3 PP2000 V24 V47 Citroen/Peugeot Diagnostic Tool is compatible with Citroen cars including: C1,C2,C3,C4,C6,C8,C-CROSSER,NEMO,BERLINGO,JUMPY,JUMPER,AX,SAXO,BX and so on. But please pay attention, according to our customer's experience, this item can not works good at C5 new models. Diagnostics is performed via OBD-II connector (which is located near steering wheel) or via manufacturer-specific connector (only older cars, pre-2001).
Lexia 3 PP2000 is compatible with Citroen cars including: C1,C2,C3,C4,C6,C8,C-CROSSER,NEMO,BERLINGO,JUMPY,JUMPER,AX,SAXO,BX and so on. But please pay attention, according to our customer's experience, this item can not works good at C5 new models.
8. Autel Maxidas DS708
Autel MaxiDAS® DS708 complete function capability including live data, ECU programming and so many others. Extensive vehicle coverage for more than 30 domestic, Asian and European vehicle makes. Deep vehicle system coverage for ALL electronic systems
Extremely easy-to-us with touch-screen operation and intuitive operation. Built-in overvoltage protection keeps the instrument and vehicle from unwanted damages. Creative remote diagnosis for convenient demonstrationand training. Powered by Autel® Uni-SCANTM technology with no need for extra adaptors or "keys".
And DS708 is produced by Autel.
9. ELM327 Bluetooth OBD2 V1.5
ELM327 Bluetooth works with all OBD-II compliant vehicles. It can read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database).
ELM327 can display current sensor data, clear trouble codes and turn off the MIL ("Check Engine" light).
10. KWP2000 Plus
Functions of KWP2000 Plus:
A. Read and analys your current ECU software.
B. Upgrad the ECU software with a re-mapped file.
C. Repair ECUs with software problems or corruption.
2013年7月11日星期四
MaxiTPMS® TS601
MaxiTPMS® TS601 |
MaxiTPMS® TS601 is the most powerful TPMS diagnostic & service tool in the world capable of fully diagnosing TPMS problems as well as activating TPMS sensors and reprogramming the vehicle's ECU. This professional tool is the best solution for tire shops and automotive workshops to perform TPMS service!
Features
Activates ALL magnetic, frequency and tire deflation triggered sensors using 125KHz continuous or modulated wave signals
Receives both 315MHz and 433MHz signals
Reads / writes sensor ID from vehicle ECU
Reads / clears codes of TPMS system and resets malfunction indicator light
Reads activated sensor data including sensor ID, tire pressure, temperature, battery condition, OE part number, relearn information
Reads, records and playbacks TPMS live data, including tire pressure, signal status, temperature, battery status, etc.
Retrieves TPMS ECU information
Performs actuation tests and special functions
Programs vehicle ECU to learn sensor IDs and positions
Capable of programming single tires for Chrysler, Renault, and Citroen
Checks Remote Keyless Entry (Key FOB) for transmissions
Graphs vehicle with 4 or 5 wheels to simplify the diagnostic process
Pre-selection process offers faster activation and diagnostics
Provides visual and audible responses to confirm sensors are working properly
On-screen code definitions
Incredibly easy to use with intuitive navigation and step-by-step on-screen instructions
Proper LF signal to prevent being fooled by other RF signals
Built-in rechargeable Li-polymer battery
Automatic power-off to preserve battery life
Multilingual support: English, French, and Spanish, etc.
One year free update on the internet via USB port
Ergonomic design features strong housing and protective rubber boot
And you can visit Autel's Official Website for detail information.
2013年7月8日星期一
AUGOCOM H8 Truck Diagnostic Tool
AUGOCOM H8 + Software Diesel Truck Interface is newly released with almost the same function as Nexiq,and Software is a PC-to-vehicle interface compatible with multiple software applications, minimizing your investment in multiple brand-specific diagnostic.
AUGOCOM H8 Protocol Coverage
CAN - J1939/CAN125/CAN250/CAN500/CAN1000
2nd CAN - J1939/CAN125/CAN250/CAN500/CAN1000
J1587/J1708 J1850 J2534
ISO 15765 (Diagnostic CAN)
ISO 14230 (KWP2000 over ISO9141) ALDL ATEC 160 (160 baud)
AUGOCOM H8 supports Heavy-Duty, Light-and Medium-Duty Trucks, CONSTRUCTION EQUIPMENT like (Wheel loader, Articulated Hauler and Excavator), Genset.
Features
Compatible with applications that diagnose engines, transmissions, ABS, instrument panels and more.
Reduce reprogramming times with direct USB connection
Mixed fleet capabilities with broad protocol support
Quick access to vehicle data for maintenance or management reports
Quickly attaches to vehicle's diagnostic connector.
Easy portability increases flexibility, May be used with desktop PC or laptop.
For more information, please visit shopobd2.com.
2013年7月7日星期日
CAT ET III Adapter With Bluetooth
CAT ET III Adapter With Bluetooth can indentify faulty sensors, harness connectors, and system parameters without visiting machine which are out of specification. Identifies intermittent sensors and wiring problems during Machine operation and keeps a record of each one. Showswhen problem occurred and how often it happened.
CAT ET III Video
CAT ET Bluetooth Function
1.Display "Logged Event Codes" to show engine over speeds,High temperatures, fuel consumption, etc.
2.View ECM’s current configuration and change user settings
3.Perform diagnostic tests and calibrations, and calibrate
4.Electro-mechanical and electro-hydraulic components
5.Context sensitive help leads operator through every task Cat ET can perform
6.Data Logger and Data Log Viewer allows recording of ECM signals for delayed troubleshooting capability.
Functionalities Shows all operating conditions that cause high repair costs such as:
Over speeds, high temperatures, fuel consumption, transmission shift counts. This can provide awareness to change operator
Cat "ET Trainer" is now included in ET Program. It allows Users to train and practice using Cat ET without a Communications adapter or Electronic Control Module (ECM).This is a free feature of Cat ET.
2013年7月4日星期四
Launch X431 IV Update Via Internet
Launch X431 IV Video
Launch X431 IV is an Universal Diagnostic Tool. It can update via internet.
X431 IV Specification
Performance/Speed: The X-431 IV Auto Scanner is now a whole unit (permanently connected) means the communication time between Smartbox and main unit is reduced.
Appearance: The X-431 IV Auto Scanner has a new designed and cover made from high quality materials to stand in a new market.
Connector: The X-431 IV Auto Scanner has a new connector to replace all CAN Bus and OBD Connector called OBDII 16E connector.
Power source: The X-431 IV Auto Scanner can support 12V and 24V means not only small vehicles but also big vehicles can tested.
Measurement: Smaller than X-431 Master
Speed: Faster than X-431 Master
Features of X431 IV
*Operating System: LINUX
* Memory: 16M
* CF Card: 512M
* Main Unit I/O: Universal Serial Bus /Standard Parallel port
* Main Unit Voltage: DC12V / 24V
* Main Unit Power: approximately 9W
* Printer: Thermal mini-printer
* Display Screen: 240X320 LCD with touch screen and backlit
* Components: Main unit, SMARTBOX and MINIPRINTER
* Ambient temperature: -10-55°C
* Relative Humidity: <90%
*Measurement: 198*316-55.5mm
And you may be interested in X431 Diagun III. To learn more Launch Scan Tools, please visit shopobd2.com.
2013年7月3日星期三
CK-100 Auto Key Programmer V15.02 Ver.(DB)39.02
CK-100 Auto Key Programmer V39.02 is a new generation of the SBB Key Programmer, the replace version.
Version :V15.02
PVer.(SW) :35.01.136ase...
Ver.(DB) :39.02
Update :05/2013
PVer.(SW) :35.01.136ase...
Ver.(DB) :39.02
Update :05/2013
CK-100 Video:
Features:
Alternative to function and feature of the SBB V33.02.
Increase much more features and functions.
More powerfull and functional.
Excellent Quality, OBDChina Exclusive.
Increase much more features and functions.
More powerfull and functional.
Excellent Quality, OBDChina Exclusive.
Language:
English,Italiano,Deutsch,Francais,Espaniol,Portugues,Turkey
Now Price: $679.99
Note:
When using if it fails to adapte key, then disconnected OBD16 adapter and car connection, after 10 seconds connect again, otherwise vehicle immo system may damaged, CK-100 locked.
Compared with Silca Sbb, CK-100 Auto Key Programmer New Add Models
When using if it fails to adapte key, then disconnected OBD16 adapter and car connection, after 10 seconds connect again, otherwise vehicle immo system may damaged, CK-100 locked.
Compared with Silca Sbb, CK-100 Auto Key Programmer New Add Models
For more OBD Scanners, please visit shopobd2.com.
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