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P1627 Diagnostic Trouble Code Discussion for February 2005

Analog To Digital (A/D) Performance

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Trouble Ticket Help Requests for DTC P1627
Help Request Posted
1999 Isuzu Rodeo S 2.2L MIL Lamp on VIN: 4S2CK58D0X
P1627: PCM Analog To Digital Conversion Error. ... computer comands the cooling fan to cyle. Once the MIL sets, the fan will not turn off until the code is cleared. I don't think it's really an issue with the fan because I pulled the fan relay and as soon as the computed grounded the relay the MIL set (eve...
February 11, 2005