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Intermittent SES Light Due To A P0411 DTC - ECM Calibration Pending - keywords 2.9L 3.7L 4.2L BQMI engine lamp LL8 LLR LLV PCM start

Subject:Intermittent SES Light due to a P0411 DTC - ECM Calibration Pending

Models:2008 Chevrolet Colorado
2008 Chevrolet Trailblazer
2008 GMC Canyon
2008 GMC Envoy
2008 Hummer H3
2008 Saab 97x



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

Condition/Concern:

On rare occasions, an intermittent SES light may be experienced due to a P0411 DTC.

Recommendation/Instructions:

If this concern is experienced, perform the SI diagnostics for this DTC and repair as necessary. If the SI diagnostics do not isolate the cause of this concern, no repairs should be attempted at this time because an updated ECM calibration will be released in TIS2Web to address this issue by the end of March, 2008. This PI will be updated with additional details once the updated ECM calibration is available in TIS2Web.

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.