Body Controls - Liftgate Module Diagnostic Information
Bulletin No.: 06-08-66-014Date: November 06, 2006
INFORMATION
Subject:
Diagnostic Information When Servicing Liftgate Module
Models:
2006 Buick Rainier
2006 Chevrolet TrailBlazer
2006 GMC Envoy
Technicians should be aware that 2004 liftgate modules (LGM) may be found in some 2006 model year vehicles. The supplier modified the software to work on the 2006 model year vehicles with the 2004 model year hardware.
This bulletin is to instruct Technicians of the recommended actions to take to diagnose this part in service. If a vehicle comes in for service, the Technician may replace the component with the appropriate current service part number.
The Tech 2(R) will be able to read the base part number when an LGM needs programming and will be able to determine the part installed.
Do not attempt to reprogram a 2004 MY LGM with a 2006 MY calibration.
Doing so may cause the following conditions:
Improper communication
Rear Wiper Delay 1 Delay 2 will not work properly.
Disclaimer