CCM-0008

Condition







Diagnostic trouble code (DTC) CCM-0008 is stored if the control module registers that the signal from the sun sensor is above 98% of supply voltage (approximately 5 V).

The diagnostic trouble code (DTC) can only be diagnosed for the electronic climate control module (CCM) (ECC).

Substitute value

- The control module adopts a substitute value corresponding to approximately 20% (200 W/m2) of maximum solar heat.

Possible source

- Contact resistance, oxidation or loose connections in the connectors.
- Open-circuit in the signal cable between the control module and the sun sensor.
- Short-circuit to supply voltage in the signal cable between the control module and the sun sensor.
- Short-circuit to supply voltage in the ground lead between the control module and the sun sensor.
- Open-circuit in the ground lead between the control module and the sun sensor.
- Defective sun sensor.

Fault symptom[s]

- The passenger compartment temperature is not reduced when sun intensity is high.