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B0488

Read the instructions below then start the fault diagnostic procedure.

Symptom: Poor heating of cabin Heater not permitted to start

B0488


Overheat Counter Overrun System locked.


Fault symptoms

Poor heating of cabin

Heater not permitted to start

Conditions

The heater has been stopped due to 10 consecutive overheats.

Diagnostic help

The heater is provided with extra cabling and connector which is isolated from the ordinary cabling from the heater. This cabling and connector is not used but is connected to the control module, therefore always check that this cabling is undamaged before beginning fault tracing.

In the ordinary cabling between the heater and the 8-pin connector, there is an extra light green lead that is cut and is not used.