DESCRIPTION:Fan stage 1 circuit failed high.
MONITORED PARAMETER:Fan control solenoid.
VERIFICATION:Engine Idle: One minute.
PROBABLE CAUSES:1. Wiring between the fan control solenoid and the 120-pin MCM connector.2. Fan control solenoid failure.
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 641 FMI 5 (MCM) Turbocharger Control Circuit Failed Open
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 641 FMI 4 (MCM) Turbocharger Control Circuit Failed Low
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 641 FMI 3 (MCM) Turbocharger Control Circuit Failed High
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 639 FMI 14 (CPC) Data Link Failure
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