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For 1990-2009 cars only

SES Light Due To DTCs P0105 P0106 And/Or P0506 - Clean Throttle Body - keywords body clean code codes deceleration DTC engine erratic idle intermittent low PCM plate surge unstable

Subject:SES Light Due to DTCs P0105, P0106, and/or P0506 - Clean Throttle Body

Models:2004-2007 Buick Rainier
2002-2007 Chevrolet TrailBlazer
2004-2007 Chevrolet Colorado
2002-2007 GMC Envoy
2004-2007 GMC Canyon
2002-2004 Oldsmobile Bravada
2006-2007 HUMMER H3
2005-2007 Saab 9-7X
with any of the following engines:
2.8L (VIN 8 - RPO LK5)
2.9L (VIN 9 - RPO LLV)
3.5L (VIN 6 - RPO L52)
3.7L (VIN E - RPO LLR)
4.2L (VIN S - RPO LL8)



The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

On rare occasions, a SES light may be experienced due to DTCs P0105, P0106, and/or P0506. There may or may not be an idle complaint accompanying the SES light. This may be due to excessive carbon build up in the throttle body.

Recommendation/Instructions:

If the SI diagnostics do not isolate a cause for this concern, clean the throttle body bore and plate for evaluation.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.