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For 1990-2009 cars only
Makes 🢒 Saab 🢒 2005 🢒 9-7x 🢒 Bulletins 🢒 Repeat SES Light Due to a P0410 DTC - Possible O2 Sensor - keywords AIR CEL injection MIL oxygen pump secondary

Repeat SES Light Due to a P0410 DTC - Possible O2 Sensor - keywords AIR CEL injection MIL oxygen pump secondary

Subject:Repeat SES Light due to a P0410 DTC - Possible O2 Sensor

Models:2004-2005 Buick Rainier
2004-2005 Chevrolet TrailBlazer
2004-2005 GMC Envoy
2004 Oldsmobile Bravada
2005 Saab 9-7x
with 4.2L Engine (VIN S - RPO LL8)


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

Condition/Concern:

Currently, the SI diagnostics do not mention the position 1 O2 sensor as a potential cause of a P0410 DTC.

Recommendation/Instructions:

If the SI diagnostics do not isolate the cause of a P0410 DTC, there is no sign of dirt or water in the AIR pump or relay, and proper AIR check valve operation is noted, replace the position 1 O2 sensor.

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.