TECH TIP: GM: ABS Lamp ON/DTC C0040 Set – UnderhoodService

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Engine Compartment

TECH TIP: GM: ABS Lamp ON/DTC C0040 Set

Some customers may comment that the ABS light is illuminated. This may be caused by the wiring harness coming in contact with the A/C compressor pulley.

Underhood Service Staff Writers
By Underhood Service Staff Writers
Published:

MODELS:
2005-2007 Buick Rainier
2005-2008 Chevrolet TrailBlazer
2005-2008 GMC Envoy
2005-2008 Saab 9-7X
• With 4.2L Inline 6 Cylinder Engine (VIN S – RPO LL8)

CONDITION:
Some customers may comment that the ABS light is illuminated.

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CAUSE:
This may be caused by the wiring harness coming in contact with the A/C compressor pulley.

Correction
1. Remove the engine protection shield.
2. Inspect the wiring harness. If the harness is damaged, repair the firing with the correct method as outlined in the service information.
Note: The harness should have a slight loop downward under the A/C compressor.
Courtesy of ALLDATA.

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