B2352

Voltage supply to the cabin fan, short circuit to ground.

Fault symptom
Cabin fan, no or faulty function.

Action
1 Connect the ISAT scan tool and read "FAN CONTROL VOLTAGE".
The ISAT scan tool gives the values in volts.
The correct value should be 0 - 5 V.
Non-activated fan gives 0 volts.
Maximum fan speed gives 5 volts.
2 Unplug the fan control module connector with the ignition on. Measure the voltage on pin 1.
The correct value should be about 12 V.
If the value is correct, change the fan control module.
If the value is incorrect, check the lead between pin 1 on the fan control module and pin 17 on the Automatic Climate Control (ACC) control module for short circuit to ground.
Localize and remedy the fault.
3 If the fault remains, proceed to "Action Before Changing A Control Module". Before Changing a Control Module