| Documents |
|
| Volkswagen K-line Communication Description |
| K-line communication description_V3 0.pdf |
| |
|
| OBD Communication Initialization |
| VW_Initialization_2_6_seconds.pdf |
| Volkswagen has found that some inspection equipment (or handheld OBD scan tools) have
trouble establishing communication with a:
1999 MY VW Golf 1.9L TDI (diesel) 66kW;
2000 MY VW Jetta 1.8L Turbo (gasoline) 110kW; or
2001 MY VW Jetta 2.0L (gasoline) 85kW
and may not be able to establish communication at all with these vehicles or may only be able
to establish communication with the transmission control module (TCM) (for automatic
transmission equipped vehicles). |
|
| 1997 2.5TL GST Communication Issue |
| Acura 1997MY 25TL GST Communication Issue 06-2010.pdf |
| 1997 Acura 2.5TL has experienced a generic scan tool (GST)
communication issue during smog check inspections in several states. |
|
| Land Rover 10MY LR2 TCM CVN Reporting |
| 10MY_LR2_TCM_TSB.pdf |
| Due to a mistake in the TCM software, 2010 model year LR2 vehicles with the TCM software that has CAL ID 31259658 AB will each report a different (unique) CVN. |
|
| 2007 GM Full Size Truck PID Count (Rev) |
| 2007 PID Count Change_rev2.pdf |
| GM has provided information relating to a service calibration that, when installed, will change by one the Mode $01 PID count for the subject vehicles. Affected Vehicles: 2007 Chevrolet Tahoe, Suburban, Avalanche 2007 GMC Yukon, Yukon XL equipped with 5.3 Liter Flex Fuel Engines (VIN Code 0 or 3).
This revised copy contains additional detail that could assist I/M administrators regarding how this change could affect their programs. |
|
| VOLKSWAGEN K-Line Communication Description |
| K-line communication description_V3 0(1).pdf |
| Overview of ISO 9141 part 2 and ISO 14230 parts 2 and 4 |
|
| Volvo Air Conditioning (A/C) Readiness Monitor |
| Volvo_IM_Advisory.pdf |
| Volvo Car Corporation, LLC (Volvo) has determined that certain XC90, S40 and V50 vehicles have the A/C readiness mistakenly set to supported instead of unsupported. This means that some technicians or IM administrators may think there are issues with scan tool equipment accuracy, vehicle tampering, or fraud. This letter is to confirm that specific Volvos will indeed report A/C monitor as supported and to provide information regarding which vehicles are affected and what additional actions repair technicians may need to take to get the A/C monitor readiness to report 'ready/complete'. |
|
| Chrysler Dual Protocol Issue |
| Chrysler OBD Dual Protocol Clearinghouse Letter.doc |
| Chrysler has provided a document regarding the dual protocol issues for Dodge Truck and Jeep - Engine Control Modules supporting both SAE J1850 and ISO 9141-2 Protocols.
Affected vehicles:
1999 - 2004 Jeep Grand Cherokee
2001 - 2004 Jeep Wrangler
2002 - 2003 Jeep Liberty
2001 - 2003 Dodge Dakota
2001 - 2003 Dodge Durango
2002 - 2003 Dodge Ram Pickup |
|
| Verified OBD Communication Protocols (Updated 3-16-2009) |
| OBD_generic_protocols_verified_2009-3-16.xls |
| OBD II Generic Communication Protocol table listed by Make-Model and Model year
OEM's that have updated this table include:
Mercedes
Toyota/Lexus/Scion
Mitsubishi |
|
| CAN for Vehicle Emissions Data Communication |
| CAN Communication for Vehicle Emission Control Systems_article_.pdf |
| Details of the CAN protocol. |
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