Hybrid - Reinstalling Hybrid Transmission Drive Motors
INFORMATIONBulletin No.: 10-06-122-001
Date: November 03, 2010
Subject: Reinstalling Hybrid Transmission Drive Motors On 2-Mode Hybrid Full Size Trucks
Models:
2008-2009 Cadillac Escalade Hybrid
2008-2009 Chevrolet Tahoe Hybrid
2009 Chevrolet Silverado Hybrid
2008-2009 GMC Yukon Hybrid
2009 GMC Sierra Hybrid
All Equipped with 2ML70 Hybrid Transmission (RPO M99)
All Built Prior to VIN Breakpoint 10020698
During service of a 2-Mode hybrid drive motor, the motor harness can easily be damaged if the appropriate precautions are not used. When reinstalling a drive motor, sharp edges of the transmission case access opening may chafe or cut the harness when the drive motor is fed through the case opening.
Recommendation
Use the procedure and parts below to protect the drive motor harness PRIOR to reinstallation into the transmission case.
1. Remove the black plastic wiring harness clip (1) from the motor casing and pull the harness out of the clip, exposing the drive motor wires (2).
2. Obtain a revised wiring harness clip (Warranty Parts Center (WPC) # 577) from the WPC. Refer to Parts Information below.
3. Insert the motor harness (minus the two separate brown wires) into the revised wiring harness clip.
4. Position the two brown wires into the access slot (1) located on the internal side of the wiring harness clip.
5. Engage the locking tab (1) to retain the harness within the clip.
6. Install the wiring harness clip back into the motor housing. The drive motor is now ready to be installed into the transmission case.
Parts Information
To obtain the revised wiring harness clip, fax the form included in this bulletin to the GM Warranty Parts Center (WPC). Request WPC#577 for the wiring harness clip.
IMPORTANT NOTE WHEN PRINTING THIS FORM: If the form prints out on two pages, make certain you fax BOTH pages so the WPC receives all the needed information. Missing information will delay or prevent the part from being shipped.
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