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P1652 Diagnostic Trouble Code Discussion for April 2005

Serial Communication Link Malfunction

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Trouble Ticket Help Requests for DTC P1652
Help Request Posted
1998 Chevrolet Lumina 3.1L MIL Lamp on VIN: 2G1WL152M4
P1652: Cooling Fan 2 Relay Control Circuit Malfunction. The cooling fans work with engine temp and the a/c. I have a feeling there is a wire that is comming in contact with ground somewhere but I can't see to find it. According to alldata, the computer is looking to ground the fan relays if the voltage is correct c...
April 28, 2005