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P1652 Diagnostic Trouble Code Discussion for January 2011

Serial Communication Link Malfunction

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Trouble Ticket Help Requests for DTC P1652
Help Request Posted
1996 Pontiac Grand Prix 3.1L MIL Lamp on VIN: 1G2WJ121M5
P1652: Cooling Fan 2 Relay Control Circuit Malfunction. ... Checked wiring at MAF-OK. Cleared codes, all three p0102, p1652, p1655 come right back. Trying to help a shop and demo IATN to them - looking for help. Thank you.
January 20, 2011