Power Liftgate Inoperative from Key FOB, Interior Mounted Open/Close Switch, Gate Mounted Open/Close Switch and Gate Mounted Touch Pad (Reprogram Liftgate Control Module) (09-08-66-010B)

Publication date: 2010-03-25
Reference number: 09-08-66-010B
Supersedes refnos: 09-08-66-010, 09-08-66-010A

Power Liftgate Inoperative from Key FOB, Interior Mounted Open/Close Switch, Gate Mounted Open/Close Switch and Gate Mounted Touch Pad (Reprogram Liftgate Control Module)

TECHNICAL SERVICE BULLETIN

Reference Number(s): 09-08-66-010B, Date of Issue: March 25, 2010

Affected Model(s):	2010 Cadillac CTS Sport Wagon, SRX; 2010 Chevrolet Equinox; 2010 GMC Terrain; Built Prior to the Following VIN Breakpoints:
Supercedes:	This bulletin is being revised to add VIN breakpoint information. Please discard Corporate Bulletin Number 09-08-66-010A (Section 08 - Body and Accessories).

Superceded Bulletin(s): 09-08-66-010A, Date of Issue: January 25, 2010

SERVICE INFORMATION

Vehicle		VIN Breakpoint
Cadillac CTS		A0131157
Cadillac SRX		AS567115
Chevrolet Equinox		A6269730
GMC Terrain		A6269797

Condition

Some customers may comment that the power liftgate is inoperative from the key FOB, the interior mounted open/close switch, the liftgate mounted open/close switch and the liftgate mounted touch pad.
2010 Cadillac CTS Sport Wagon ONLY - Some customers may comment that the power liftgate does not open on first attempt, but will open on subsequent consecutive attempts.

Cause

This condition may be caused by a power liftgate microprocessor issue that could cause the power liftgate module to stop communicating on the GMLAN Serial Data Bus.

Correction

NOTE: If the power liftgate module is not communicating, remove the two power liftgate module fuses, wait a minimum of 1 minute , and reinstall the two fuses; or disconnect the power liftgate module (disconnect all three connectors at the module), check and verify power and ground to the module, and re-connect the power liftgate module. Verify communication. If communication is restored, then update the software in the power liftgate module.

A revised power liftgate module calibration has been released to address this condition. Reprogram the power liftgate module using the Service Programming System (SPS) with the latest calibration available on TIS2WEB. Refer to the SPS procedures in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with the latest software version.
When using a Tech 2® for reprogramming, ensure that it is updated with the latest software version.
During programming, the battery voltage must be maintained within the proper range of 12-16 volts. Only use the approved Midtronics® PSC 550 Battery Maintainer (SPS Programming Support Tool EL-49642) or equivalent during programming.

Warranty Information

For vehicles repaired under warranty, use:

Warranty Information

Labor Operation	Description	Labor Time
N9632*	Power Liftgate Module Reprogramming with SPS	0.4 hr
* This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide.