PIC5988

Bulletin No.: PIC5988
Date: May-2014
Subject:
2014 Cadillac ELR (EREV) History DTCs Leading To Misdiagnosis or Needless Component Replacement
Models:
2014 Cadillac ELR
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
A dealer may find the following DTCs set as Passed /Failed (History) when checking for codes:
U0401 U0140 P15F6 P1E00 U0100 P0562 P1553 P0AC4 C0110 C0898 P1EFC P257F P150D P150E C0899 U1860 U0293 C0196 P069E U2608 U0101
U186B P1ADE P1AE0 P1E19 U0073 P1EDD U0417 U184D U1858 C12E0
Recommendation/Instructions
DO NOT replace or program a component if the DTCs indicated cannot be duplicated.
If the DTCs indicated are only set in History (Passed /Failed) and published GSI diagnostics will not lead to root cause of the concern, please contact the GM
Technical Assistance Center (GM TAC) to document a TAC case for further diagnostic advice. In some cases, further instruction may be requested from GM
Engineering that may require FSE assistance.
If any examples listed below do not clearly lead to a repair or component replacement:
•
Wiring Repair (examples: Loose or corroded connections, wiring, terminal fit or poor ground)
•
Low accessory battery voltage that cannot clearly be traced to a root cause
•
There are no published GSI documents clearly leading to repair of the concern
•
GM Engineering or GM Technical Assistance has not advised of replacement.
Diagnostic data needed to diagnose an intermittent concern may not be available if the relevant data is not reviewed in GDS2. It is good practice to at least
check for any DTCs or review data in any suspect module, regardless if there is an Active/Current DTC or CEL/SVS lamp on or not.
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.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may
occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools,
safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that
your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
1