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P0480 Diagnostic Trouble Code Discussion for October 2007

Cooling Fan 1 Relay Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0480
Help Request Posted
2005 Chevrolet Cobalt LS 2.2L MIL Lamp on VIN: 1G1AL12F45
P0480: Cooling Fan Relay 1 Control Circuit Malfunction. ... complaining of a MIL light on and cooling fan running at high speed when KOEO or KOER. Found code P0480 (Coolant Fan 1 control circuit). Checked data stream (Modis) for high ECT reading, AC active, both were ok. Had no data stream for PCM activation of coo...
October 29, 2007