Incorrect Odometer Reading After BCM Replacement - keywords calibration inaccurate IPC mileage program stall
| Subject: | Incorrect Odometer reading After BCM Replacement |
| Models: | 2005-2006 Chevrolet Cobalt |
| 2007 Pontiac G5 |
| 2005-2006 Pontiac Pursuit |
| 2003-2006 Saturn ION |
This PI has been revised to update the model list. Please discard PIC3843.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
A technician may comment the he has incorrect odometer reading after BCM replacement and reprogramming procedure.
Recommendation/Instructions:
After replacing a BCM, it may be necessary to disconnect the IPC prior to programming the new BCM. If the IPC is not disconnected it may validate the current mileage (incorrect in this case) with the ECM and self-populate the BCM with the incorrect mileage. Have technician disconnect IPC from BCM before programming. This will force the BCM to ask tech to enter the mileage manually during programming. If tech has already programmed the BCM and the incorrect mileage is transferred to the IPC, have tech try and program again with the IPC disconnected. If this doesn't work the BCM will need to be replaced again
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
