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Repeated Park LPS Fuse Open (Additional Information) - keywords B2585 B258506 B262502 BCM brake DTC dimming fuse hazard IPC LPS MIL repeat STG SVS

Subject:Repeated Park LPS Fuse Open (additional information)

Models:2005-2007 Chevrolet Cobalt
2004-2007 Chevrolet Malibu/Maxx
2007 Pontiac G5
2005-2007 Pontiac G6
2005-2006 Pontiac Pursuit (Canada Only)



This PI was superseded to update to 2007 model years. Please discard PIC3385A.


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

Condition/Concern:

Park Light fuse is blown

Recommendation/Instructions:

Short to ground in Circuit 8 (output dimmer circuit) can cause the Park Light fuse to blow.

Document ID # 1381132, (Malibu)

Document ID # 1527768, (Cobalt/Pursuit)

Document ID # 1471242, (G6)

These document numbers will show that Circuit #9 (brown) goes to the IBCM and is converted to Pulse Width modulation for the output on the illumination circuits (#8 grey wire). It is recommended that you check for a short to ground on the #8 (grey) circuits in the doors, around center console, and around/or near the drivers front seat track. On the Chevrolet Cobalt SS, check for a short to ground on the left side upper dash pad, as the wiring headed to the boost gauge may be pinched.

Note: DO NOT replace the IBCM for that park lamp fuse blowing as it WILL NOT repair the vehicle.

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.