72334 - A25 VOLUMETRIC SURVEILLANCE ALARM NOT WORKING

When the alarm is switched on using the remote control, the system is activated correctly but the volumetric sensors do not intervene.
The volumetric sensors are located in the roof node and are connected to the Body Computer Node via the A-BUS dialogue line. The volumetric sensors are operated and controlled by the Body Computer Node via a series of encrypted messages and can be excluded by the customer using the special button.If there is a failure the Body Computer Node detects and memorizes the causes of the malfunction
STEPOPERATIONS TO BE CARRIED OUTTEST RESULTS
1CHECK USING DIAGNOSTIC EQUIPMENT ALL OKPROBLEMS ENCOUNTEREDACTION
Connect the Examiner diagnostic equipment to the diagnostic socket and check the following at the Body Computer NodeIn parameters ambient:

  • the presence of the volumetric sensors
In errors ambient:

  • that there are no faults with the volumetric sensors
Move on to Step 1. Volumetric sensors faulty 1. Replace the sensor module integrated in the courtesy light [PR.5580E50]
2. Volumetric sensors not present 2. Check the conformity of the vehicle
2CHECK USING DIAGNOSTIC EQUIPMENT ALL OKPROBLEMS ENCOUNTEREDACTION
Connect the Examiner diagnostic equipment to the diagnostic socket and check the following at the Body Computer NodeIn active diagnosis ambient

  • the operation of the volumetric modules
Move on to Step The volumetric module is not working Replace body computer    See in Op. 5505A32 BODY COMPUTER - R.R.
3CHECK ON CORRECT OPERATION ALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer present