Fault Memory

Fault Memory

Overview of possible faults
- Interface to the instrument cluster
- Outside temperature sensor
- Interior temperature sensor
- Blower outlet sensor
- Supply voltage (terminal 15)
- Supply voltage (5 volts)
- Motor, temperature mixing valve
- Motor, central valve
- Motor, footwell / defrost valve
- Motor, outside air / recirculation valve
- A/C (air-conditioning compressor demand)
- Motor, fresh-air blower
- Control module faulty
- Sun sensor

NOTE:
- The fault counter is set to 50 the first time a fault occurs.
- The fault counter is reduced by 1 (decremented) if the fault is no longer present and the diagnosis conditions exist.
- The fault is erased from the memory when the fault counter reaches 0.