PIP4880D

Bulletin No.: PIP4880D
Date: Sep-2013
Subject:
(EREV) DTC P0335 And/Or P0336 Stored In The HPCM
Models:
2011-2014 Chevrolet Volt
2012-2014 Opel Ampera
This PI was superseded to update model list and vehicle fix. Please discard PIP4880C.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
Customer may comment of a MIL, dealer technician may find history DTC P0335 and or P0336 stored in the HPCM.
Recommendation/Instructions
If the DTCs P0335 and or P0336 are found stored ONLY as history in the HPCM, please check ground connection G106 & G113.
If both grounds are clean and tight, attempt to reproduce the DTCs. If the DTCs do not reset please clear the DTCs and do not attempt any repairs at this time.
If the vehicle is a model year 2014, there is a software solution to address this issue and please update the T6 Power Inverter Module (HPCM) with the current
software loaded into TIS-2-Web.
If either of the DTCs P0335 and P0336 are stored in the ECM as well as the HPCM or are current, please follow published SI diagnostics.
Warranty Information
For vehicles repaired under warranty use:
Labor Operation
Description
Labor Time
4069939
Powertrain Controls — Labor Only Verify DTC Does Not
Reset And Release Vehicle
Use published labor time
2810295
Drive Motor Generator Power Inverter Module
Reprogramming with SPS
Use published labor time
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.
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