Cobalt L4-2.0L SC VIN P (2005)
Engine Control Module: Customer Interest
Engine Controls - MIL ON/Low Power/DTC's Set
Bulletin No.: 07-06-04-003
Date: January 19, 2007
TECHNICAL
Subject:
LSJ, L61, LK5, L52, LL8 Engine-Reduced Engine Power, MIL/SES Light, DTC P1516, P2135, P2138 (Replace PCM)
Models:
2005-2006 Chevrolet Cobalt, Cobalt SS, Malibu
2006 Chevrolet Colorado, TrailBlazer
2006 GMC Canyon, Envoy
2006 HUMMER H3
2005-2006 Saturn ION, ION Red Line
2006 Saab 9-7X
with ECOTEC(TM) 2.0L, 2.2L I-4 Cylinder Engine (VINs P, F - RPOs LSJ, L61) or
VORTEC(TM) 2.8L I-4, 3.5L I-5, 4.2L I-6 Cylinder Engine (VINs 8, 6, S - RPOs LK5, L52, LL8)
Attention:
The following bulletin information is only to be used if the customer has returned for REPEAT repairs for DTCs P1516, P2135 and/or P2138.
Condition
Some customers may comment on engine operation in the Reduce Engine Power mode with the MIL/SES light illuminated. This condition may be
repeated and upon investigation, the technician may find the following DTCs set as current or in history:
DTC P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance
DTC P2135 Throttle Position (TP) Sensor 1-2 Correlation
DTC P2138 Accelerator Pedal Position (APP) Sensor 1-2 Correlation
Cause
This condition of a repeat DTC P1516, P2135 and/or P2138 may be caused by an internal concern with the PCM.
Correction
DO NOT replace the APP sensor. Inspect the PCM build date first.
