2006 Pontiac G6 - No Generic Communication. 2006 Pontiac G6 This vehicle was located at Haggerty...
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Transcript of 2006 Pontiac G6 - No Generic Communication. 2006 Pontiac G6 This vehicle was located at Haggerty...
![Page 1: 2006 Pontiac G6 - No Generic Communication. 2006 Pontiac G6 This vehicle was located at Haggerty Buick Pontiac. The concern is that the vehicle will communicate.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649e2c5503460f94b1b109/html5/thumbnails/1.jpg)
Case Study 2006 Pontiac G6 - No Generic
Communication
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2006 Pontiac G6This vehicle was located at Haggerty Buick Pontiac.
The concern is that the vehicle will communicate with the tech 2 scantool, but would not communicate with APPLUS equipment.
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2006 Pontiac G6
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2006 Pontiac G6The first step is to review communication schematics for the vehicle you are working on.
This is a GMLAN communication protocol.
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Data Link Communications
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2006 Pontiac G6The second step is to OHM test between DLC pins 6 and 14.
A BOB was attached to the vehicle at the DLC.
The ohm value we would like to see is 60 ohms.
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2006 Pontiac G6The red ohmmeter lead was placed in pin 6 and the black lead was placed in pin 14.
The ohm value noted on the DVOM was .505 Mohms or 505,000 ohms.
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DLC
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2006 Pontiac G6The third step is to locate any modules that may house the terminating resistors.
The BCM and PCM have been located and identified as these modules.
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Powertrain Control Module
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Body Control Module
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2006 Pontiac G6The BCM C2 was then disconnected with the connector to the PCM left intact.
The ohm value on the DVOM was 120 ohms. (correct)
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Disconnect at the BCM
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2006 Pontiac G6The BCM was then re-connected and the PCM C3 connector disconnected.
The ohm value on the DVOM was 120 ohms. (correct)
The PCM connector was then re-installed. Generic communication was restored
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SummaryThere will be rare cases where a simple disconnect and re-connect may solve a communication issue .
It is interesting to note that this was the first request for testing on this subject vehicle.
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SummaryNo further concerns or issues were noted.
Generic communication has been restored.
Monitors must run and pass before returning to the emissions test facility.