PIC6160

Bulletin No.: PIC6160
Date: Dec-2015
Subject:
Water Intrusion - Forward Lamp Harness - Engine Cooling Fan Inoperative - P0480
Models:
2016 Chevrolet Camaro
Equipped with 3.6L engine RPO LGX and without RPO Y4Q
Condition/Concern
Some customers may comment that the engine cooling fan intermittently stops working. As this condition worsens, it may be found that the Check Engine Lamp
(CEL) has turned on, the engine cooling fan stops operating all together and/or a P0480 DTC may be set. If the customer would continue driving with an
inoperative cooling fan, the engine can overheat causing severe engine component damage.
Recommendation/Instructions
This concern may be caused by water intrusion into the forward lamp harness. If the wiring harness is stretched, or side loaded, where the cooling fan module
connector plugs in, this may allow water to wick down the harness, past the weather pack seals, and into the connector itself. As time goes on, this water may
corrode the terminals inside the connector and/or the harness itself as seen in the two photos below.
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As the corrosion builds, this may cause the engine cooling fan to become inoperative altogether. If this concern is encountered, dealership technicians are to
first inspect the forward lamp wiring harness to cooling fan module connector for the presence of moisture and/or corrosion. If water and/or corrosion is found,
contact the Technical Assistance Center (TAC) for specific repair instructions. If no water and/or corrosion is found after inspecting this connection, refer to
Service Information (SI) and continue with regular diagnosis.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may
occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools,
safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that
your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
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