CCM-0001

Condition







Diagnostic trouble code (DTC) CCM-0001 is stored if the control module registers that the diagnostic signal from the blower fan power unit is below 1.28 V and the control current to the blower fan power unit is below 0.42 mA.

Substitute value

- The control module will not allow the blower fan motor to start while the fault persists.
- The air conditioning (A/C) compressor is not allowed to start.

Possible source

- Short-circuit to ground in the motor signal cable.
- Short-circuit to supply voltage in the signal cable.
- Open-circuit in the diagnostic signal cable.
- Short-circuit to ground in the diagnostic signal cable.
- Defective blower fan motor or power unit.

Fault symptom[s]

- Blower fan not operating.
- Air flow problem.
- No cooling from the air conditioning (A/C) system.