HEA-842

Diagnostic Trouble Code (DTC) Information

Condition







A diagnostic trouble code (DTC) is stored if there is a short-circuit to ground or an open-circuit in the power supply from the control module to the fuel pump, water pump and combustion fan.

Condition

- Heater not activated.

Possible source

- Contact resistance in control module connector.
- Short-circuit to ground in the power supply circuit.
- Open-circuit in the power supply cable.

Condition

- Poor heating in passenger compartment.