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

VC (air-conditioning compressor demand)

Motor, fresh-air blower

Control module faulty

Sun sensor


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.

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