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For 1990-2009 cars only

Electrical Concerns Related to the Forward Lamp Harness - keywords air B0084 bag C120 connector DIC fluid front lamp left light low message open outside park right running sensor SIR temp temperature

Subject:Electrical Concerns Related to the Forward Lamp Harness

Models:2006 Buick Lucerne
2006 Cadillac DTS



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

Condition/Concern:

When diagnosing an electrical concern of one or both front running lamps inoperative, an SIR lamp on with a DTC B0084, an inoperative Outside Temperature Sensor, hood open message, low washer fluid indicator inoperative or any other concern related to connector C120, a poor connection or damaged terminals at connector C120 may be the cause.

Recommendation/Instructions:

Inspect connector C120 for bent or backed out terminals and proper connection. Repair terminals and reseat as needed.

Note: Refer to SI Document ID # 1708175 for connector location.

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.