HEA-142

Diagnostic Trouble Code (DTC) Information

Condition







A diagnostic trouble code (DTC) is stored if there is a short-circuit to supply voltage or an open-circuit in the outside temperature sensor circuit.

Condition

- The heater is allowed to start regardless of outer temperature.

Possible source

- Contact resistance in control module connector.
- Open-circuit on signal ground cable.
- Open-circuit or short-circuit to supply voltage in signal cable.
- Defective outside temperature sensor.

Condition

- Additional heater starts and runs at incorrect outside temperature.