HHR L4-2.2L (2007)
Engine Control Module: All Technical Service Bulletins
Engine Controls - MIL ON/Reduced Power Message/DTC P2135
TECHNICAL
Bulletin No.: 08-06-04-022B
Date: March 02, 2009
Subject:
Intermittent Check Engine Light On, Engine Power Reduced Message Displayed in DIC, DTC P2135 Set (Inspect Engine Wiring Harness for Chafing
and Recrimp ECM Terminals, if Necessary)
Models:
2006-2009 Chevrolet HHR
with 2.2L or 2.4L Engine (VINs B, D, P, V - RPOs LE8, L61, LE5, LE9)
Supercede:
This bulletin is being revised to add the 2009 model year. Please discard Corporate Bulletin Number 08-06-04-022A (Section 06 - Engine/Propulsion
System).
Condition
Some customers may comment that the check engine light is on and an engine reduced power message is displayed in the DIC.
A scan tool may reveal DTC P2135 set as current or in history.
Cause
This condition may be due to poor terminal crimps within the ECM connector, resulting in resistance at the affected circuits.
Correction
Perform the following as necessary.
1. Inspect the engine wiring harness for potential shorts to ground in the following locations and repair and reposition the circuits/harness as necessary:
^
on the ECM/PCM case and/or on the edge of either ECM/PCM connector body
^
at the UBEC bracket
^
at the cylinder head plate (power steering pump blockout)
^
at the EVAP purge valve bracket
^
at the rear of the cylinder head/upper edge of transmission bell housing
