Diagnostic trouble code (DTC) information CCM-00A0
Condition
Diagnostic trouble code (DTC) is stored if the climate control module (CCM) 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.