Inspection And Verification
WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Diagnosis by substitution from a donor vehicle is NOT
acceptable. Substitution of control modules does not guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.
NOTE:
- The 'car sense system' of the seatbelt is sensitive to both cornering and braking forces and is designed to lock when it detects this. It is therefore possible to lock when parking the vehicle on high kerbs and inclines. The seatbelt retractor will be locked when removed from the vehicle as it is not in the exact orientation that it was installed on the vehicle. This can be mistaken as a jammed seatbelt retractor.
- If a control module or a component is at fault or may be at fault and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures information, or determine if any prior approval program is in operation, prior to the installation of a new module/component.
- When performing voltage or resistance tests, always use a digital multimeter that has the resolution ability to view 3 decimal places. For example, on the 2 volts range can measure 1mV or 2 K Ohm range can measure 1 Ohm. When testing resistance always take the resistance of the digital multimeter leads into account.
- Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
- Verify the customer concern by operating the seatbelt
- Visually inspect for obvious signs of mechanical or electrical damage. Additionally inspect the seatbelt webbing and upper D-loop for signs of dirt/contaminationVISUAL INSPECTION
MECHANICAL ELECTRICAL - Check for the installation of non-standard accessories which may affect or obstruct the function of the seatbelt system
- Frayed or damaged webbing
- Missing or damaged button stop
- Pretensioner(s)
- Buckles/Stalks
- Webbing contamination
- Fuses
- Wiring harness fault
- Correct engagement of electrical connectors
- Loose or corroded connections
- Warning lamp bulb(s)
- Impact sensor(s)
- Buckle sensor(s)
- Pretensioner(s)
- Belt tension sensor(s)
- Restraints control module
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step
- If the cause is not visually evident, complete the test methods described below, alternatively check for diagnostic trouble codes and refer to the relevant diagnostic trouble code index