Movement sensor in the cab
â–¶ How to fix
1. Check the connectors and wiring. 2. If the voltage on pin T78-1 is 10-13 V: renew the movement sensor. 3. If the voltage on pin T78-1 is too low: check the wiring and whether it is short circuited to earth.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The voltage on the alarm control unit input is incorrect.
Possible cause
The fault can be caused by the following: - The movement sensor is not connected - Short circuit to earth. - OPen circuit in the communication cable between the alarm control unit and the movement sensor