SSM72738

5/17/2018
SSM72738 - “Bonnet Open” Signal Showing on IPC | TOPIx
Reference
SSM72738
Models
Discovery Sport / L550
LR3 / L319
Range Rover / L405
Range Rover Evoque / L538
Range Rover Sport / L494
Title
“Bonnet Open” Signal Showing on IPC
Category
Body
Last modified
16-May-2018 00:00:00
Symptom
112000 Latches/Locks & Security
Attachments
11SSM visuals.pdf
Content
Issue: The bonnet open warning light is on but the
bonnet appearsclosed. This can cause the alarm to trigger or the
vehicle to not lock.
Cause: The following key potential route causes have been identified:
The bonnet appears closed but is actually not latched on one side
– adjustment issue
The incorrect signal is being received from the “bonnet ajar” micro
switch – part electrical issue
The latch is unable to close – part mechanical issue
Action: Please follow the below steps to rectify the customer concern:
Note: The bonnet latch system is designed to not require ANY
lubrication to ANY part of the system. Lubrication can impact the
performance and should not be done under any circumstances
1. Check IPC for the "Bonnet Open" warning light (see attachment,
figure 1)
2. Check Message Centre for Alarm Trigger History (see attachment,
figure 2)
- This will verify if an alarm is being triggered by the bonnet
latch or a different part of the vehicle.
3. Check retention of BOTH Bonnet Latches (see attachment, figure 3)
- Lift both front corners of the bonnet separately to ensure both
latches are fully engaged. If a latch is not latching adjust it upwards,
close the bonnet and check for retention
4. Ensure the electrical harness connector is securely fitted (see
https://topix.jaguar.jlrext.com/topix/content/document/view?id=896119
attachment, figure 4)
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5/17/2018
SSM72738 - “Bonnet Open” Signal Showing on IPC | TOPIx
- Reconnect if required
5. Verify routing, engagement with latch and operation of the bonnet
release cable
Ensure that the micro switch lever is not damaged / deformed
during this check
6. Check operation of the mechanical latching and correction of the
customer complaint following the previous actions
7. If the fault persists replace the offending latch. If the vehicle is post
the assured VIN below raise an EPQR with all relevant details
included
Vehicle VIN List:
Discovery (L319) :- LA798397
Range Rover (L405) :- LG264004
Range Rover Sport (L494) :- LW562669 & 639143
Evoque (L538) :- LV103218
Discovery Sport (L550) :- LC571296
Technicians - Please rate this SSM and provide comments so that
future communications can be improved.
1 = Poor – Basic information provided – The SSM does not help me
resolve the customer concern.
3 = Average – Adequate information provided – The SSM partially
helps me resolve the customer concern.
5 = Excellent – All required information provided to resolve the
customer concern.
https://topix.jaguar.jlrext.com/topix/content/document/view?id=896119
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Figure 2
Figure 3
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