Freelander - Alarm Involuntary Operation
ALARM INVOLUNTARY OPERATION - SENSOR MALFUNCTION
Bulletin Number - 0006
Issue - 1
Date - 25.03.1998
Model - Freelander
Affected Range - All 5 door vehicles prior to VIN WA 607436
Re-Issue Information
Problem -
ALARM INVOLUNTARY OPERATION - SENSOR MALFUNCTION
Alarm is activated involuntarily, i.e. without vehicle disturbance
Cause
Volumetric sensor affected by normal cabin air moisture when vehicle is left unattended.
Action
An improved volumetric sensor part number YWC 106310 has been fitted from VIN WA 607436.
Before replacing sensor with the above part, the following test should be carried out to confirm problem is volumetric and not perimetric:
Using TestBook:
In ‘Security’ section, go to ‘Information’ and view the ‘Alarm Trigger Readings Buffer’. Up to 4 involuntary alarm events will be recorded. Ignore any test alarm events when interrogating trigger readings.
Volumetric faults:
If last genuine alarm event was caused by a Volumetric fault, replace volumetric sensor, refer to the Workshop Manual ‘Electrical - Repairs’ section for full replacement information.
NOTE:
Replacement of sensor (repair number 86.77.29) will first require removal of headlining, ensure care is taken to prevent trim damage. Replace fir tree fasteners for new (see PARTS INFORMATION ).
Perimetric Faults:
If last alarm event was triggered by other causes, i.e. a Perimetric fault, investigate cause and rectify. Check bonnet and door latch switching etc. for intermittent faults.
Parts Information
YWC 106310 - Sensor volumetric alarm
JPC4651LUM - Fastener, fir tree, headlining
Warranty
Use Complaint Code: 6S2U
Volumetric sensor renew:
Use S.R.O.: 86.77.29
Time allowance: 2.40 Hrs
TestBook diagnosis:
Use S.R.O.: 86.90.43/01
Time allowance: 0.40 Hrs
