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B1605

B1605

Fault in the electronic control module

Fault symptom

The theft alarm is not working at all.

Unspecified (due to an internal memory fault/programming fault, different functions can be affected)

Conditions

Electronic control module fault (internal) generates diagnostic trouble code

Action


1. Check if a diagnostic trouble code is registered

Erase the diagnostic trouble code, test drive the car and check to see if the diagnostic trouble code is re-registered.

If the diagnostic trouble code is registered, proceed to point 2.

If the diagnostic trouble code is not registered, the fault is intermittent.

2. Check the theft alarm control module connector Remove the control module.

• Check the connector for loose connector sleeves.

• Check the control module ground and voltage supply:

pin 25 (+30)

pin 10 (+15)

pin 13 (GND)

Refit the control module, proceed to point 3.

3. Check if a diagnostic trouble code is registered

Erase the diagnostic trouble code, test drive the car and check to see if the diagnostic trouble code is re-registered.

If the diagnostic trouble code is registered, proceed to . If the diagnostic trouble code is not registered, the action taken is correct or the fault is intermittent.