HEA-831

Diagnostic Trouble Code (DTC) Information

Condition







A diagnostic trouble code (DTC) is stored if the overheat protection thermostat is tripped.

Condition

- The heater is disabled, but is allowed to restart.

Possible source

- Air in the cooling system.
- Cooling system blocked.
- Defective overheat protection thermostat.
- Defective coolant temperature sensor.

Condition

- Poor heating in passenger compartment.