PIP4871D
Service Bulletin Details
Public Details for: PIP4871D
Models from 2013
2013 CHEVROLET VOLT |
2013 OPEL AMPERA |
Models from 2012
2012 CHEVROLET VOLT |
2012 OPEL AMPERA |
Models from 2011
2011 CHEVROLET VOLT |
Bulletin No.: PIP4871D Published date: 07/9/2019 Preliminary Information PIP4871D MIL Possible DTCs P1B10 And Or P1B0F Models Brand: Model: VIN: Model Years: from Engine: to Transmissions: Chevrolet Volt 2011 - 2013 All All All All Opel Ampera 2012 - 2013 All All All All Supersession Statement This PI was superseded to update document layout for clarity. Please discard PIP4871C. The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Condition / Concern During diagnosis of a MIL technicians may find DTC P1B0F (Drive Motor A Position Sensor Learn Incorrect) and / or DTC P1B10 (Drive Motor B Position Sensor Learn Incorrect) stored in the HPCM. Recommendations / Instructions Typically, these DTCs are not diagnosing a problem with the resolvers. Look for other DTCs to diagnose first. Review the customer’s complaint carefully. If no other DTCs are present, continue reading. These DTCS may be set if the vehicle was powered off while driving with the shift lever out of park. The driver may have purposefully or inadvertently pressed the power button instead of the Drive Mode button. Review the freeze frame records and if there is a vehicle speed reading greater than zero KPH (zero mph) DO NOT attempt any repairs for these DTCs. Explain to the customer that inadvertently shutting the vehicle off while in motion (out of park) may cause this MIL to illuminate, and this is design intent. Note: There are some known instances where the diagnostic will falsely set if the vehicle is powered on while it is plugged in. 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. © 2019 General Motors. All Rights Reserved.