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P1481 Diagnostic Trouble Code Discussion for July 2009

Cooling Fan Speed Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1481
Help Request Posted
2003 GMC Envoy SLT 4.2L MIL Lamp on VIN: 1GKDT13S73
P1481: Cooling Fan Speed Sensor Circuit Malfunction. ... with codes p1221 p1271 and p1481. the code can be cleared and normal engine operation will resume for up to a couple of days. vehicle will also intermtitently cruise at 40mph. without accelerator being touched. of course th...
July 02, 2009