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B1605

Read the instructions below then start the fault diagnostic procedure.

Symptom: Poor heating of cabin Stop the heater if it is used Heater does not start

B1605


Control module. Internal fault.


Fault symptoms

Poor heating of cabin

Stop the heater if it is used

Heater does not start

Conditions

The control module has registered an internal malfunction

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.