Diagnostic trouble code (DTC) information
Condition
The diagnostic trouble code (DTC) is stored if the control module detects a fault on the signal to the cooling fan motor for the control modules.
The signal is diagnosed at ignition on or engine running.
Substitute Value
None.
Possible Source
Signal too high:
- Short-circuit to supply voltage in the signal cable
- Damaged control module cooling fan.
Signal too low:
- Short-circuit to ground in the signal cable
- Damaged control module cooling fan.
Signal missing:
- Contact resistance in the terminals
- Open-circuit in the signal cable
- Open-circuit in the power cable
- Damaged control module cooling fan.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.