Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code (DTC) information
Condition
A diagnostic trouble code (DTC) is stored if the heater makes three failed start attempts in a row.
Substitute value
Heater not activated.
Possible source
- Leakage in heater fuel system.
- Defective fuel pump.
- Blocked air intake.
- No fuel supply.
- Contact resistance in control module connector.
- Open-circuit in the flame sensor control signal cable.
- Flame sensor control signal cable short-circuit to supply voltage.
- Flame sensor clogged with soot.
- Defective flame sensor.
- Open-circuit on signal ground cable.
Fault symptom[s]
- Poor heating in passenger compartment.