HEA-891

Diagnostic Trouble Code (DTC) Information

Condition







A diagnostic trouble code (DTC) is stored if the heater makes three failed start attempts in a row.

Condition

- Heater not activated.

Possible source

- Leakage in heater fuel system.
- Defective fuel pump.
- Blocked air intake.
- No fuel supply.
- Contact resistance in the control module connector.
- Open-circuit in the flame sensor control signal cable.
- Cable for the flame sensor control signal, short-circuited to supply voltage.
- Flame sensor clogged with soot.
- Defective flame sensor.
- Open-circuit on signal ground cable.

Condition

- Poor heating in passenger compartment.