U0140 Diagnostic Trouble Code Discussion for September 2009
Lost Communication With BCM
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| Help Request | Posted | |
| 2005 Dodge Grand Caravan 3.3L MIL Lamp on VIN: 1D4GP24R15 U0140: No Body Bus Messages. has bus codes and not sure how to proceed, checked connections at pcm, checked dash conn |
September 01, 2009 | |
| 2007 Chevrolet Monte Carlo LT 3.5L MIL Lamp on, Reduced power. VIN: 2G1WK15N97 U0140: Lost Communication With BCM. Vehicle is salvaged. Customer pulled code P2135 and replaced the TAC with one from a wrecking yard. Same code with both units. I have scoped both TPS sensors KOEO and get a good waveform and low voltages (.8V), but according to Mitchell I should see at least 4... |
September 23, 2009 |
