Diagnostic Trouble Code (DTC) Information
WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Condition
A diagnostic trouble code (DTC) is stored if the overheat protection thermostat is tripped.
Substitute Value
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.
Fault symptom[s]
- Poor heating in passenger compartment.