2010 JAGUAR XFR belt

Safety Belt System (501-20A Safety Belt System, Description and Operation), Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) (501-20B Supplemental Restraint System, Description and Operation),
Pedestrian Protection System (501-20C Pedestrian Protection System, Description and Operation).

Front safety belt retractor to seat track retaining bolt 40 30 - Front safety belt retractor retaining bolt 40 30 - Front safety belt D loop retaining bolt 40 30 - Front safety belt buckle retaining bolt 40 30 - Front safety belt shoulder height adjuster retaining bolts 25 18 - Rear centre safety belt retractor retaining bolts 40 30 - Rear safety belt long end retaining bolts 40 30 - Rear safety belt D loop retaining bolt 40 30 - Rear safety belt long end retaining bolt 40 30 - Rear safety belt buckle retaining bolts 40 30 -

Safety Belt System - Safety Belt System - Component Location
Description and Operation


NOTE: Authoring Template Published: 11-May-2011



Item Description 1 Belt tension sensor - if fitted 2 RH (right-hand) front safety belt retractor 3 RH front safety belt 4 RH rear safety belt 5 RH rear safety belt retractor 6 Child seat tethers (3 off) 7 Center rear safety belt retractor 8 LH (left-hand) rear safety belt retractor

10 RH rear and center safety belt buckles 11 LH front safety belt 12 LH front safety belt retractor 13 LH front safety belt buckle and pre-tensioner 14 RH front safety belt buckle and pre-tensioner

Safety Belt System - Safety Belt System - Overview
Description and Operation
Authoring Template
OVERVIEW Published: 11-May-2011
A three point safety belt is fitted to all seating positions. Each safety belt retractor incorporates an emergency locking feature.
The emergency locking retractor incorporates 2 mechanical inertia devices. One inertia device activates if the safety belt is
subjected to a sharp pull. The second inertia device activates if the vehicle is subject to a sudden deceleration or is on a
severe incline.

North American Specification (NAS) safety belt retractors also include an automatic locking feature. The Automatic Locking
Retractor (ALR) is fitted to all passenger seating positions and allows the safety belt to be tensioned to aid the safe fitment
of child or booster seats. For additional information, refer to the Owners Handbook.

NAS vehicles are also fitted with a belt tension sensor on the front passenger seat. The belt tension sensor is incorporated
into the seat belt lower anchorage and is attached to the seat frame by an M10 Torx head bolt. The belt tension sensor forms
part of the SRS (supplemental restraint system) occupancy detection and classification feature.

The center rear safety belt features a mini-buckle lower anchorage. The mini-buckle is disengaged by inserting a suitable tool
into the small aperture on the front face of the housing.

To aid the fitment of child seats, 3 tethers are located on the rear parcel shelf. Each tether is attached to the parcel shelf with
an M10 Torx head bolt.

A safety belt warning indicator is located in the instrument cluster to remind front seat passengers to fasten their safety belts.
The warning indicator will illuminate if the safety belt of an occupied front seat is not fastened.
Refer to: Instrument Cluster (413-01, Description and Operation).

Safety Belt System - Safety Belt System
Diagnosis and Testing

Principle of Operation Published: 13-Jun-2013

For a detailed description of the seatbelt system and operation, refer to the relevant description and operation section of the
workshop manual REFER to: (501-20A Safety Belt System)

Safety Belt System (Description and Operation), Safety Belt System (Description and Operation), Safety Belt System (Description and Operation).
Safety Information

WARNINGS:


To avoid accidental deployment the back-up power supply must be depleted before beginning any work on the SRS system
or its components. Failure to follow this instruction may result in personal injury


Do not use a multimeter to probe an SRS module. It is possible for the power from the multimeter battery to trigger the
activation of the module. Failure to follow this instruction may result in personal injury


NOTE: Do not to use a cellular phone or to have a cellular phone in close proximity when working on the SRS system or
components
Power supply depletion

Before beginning any work on the SRS system or related components:
1. Remove the ignition key

2. Disconnect the battery leads, ground first

3. Wait 2 minutes for the power circuit to discharge

There are comprehensive instructions on the correct procedures for SRS system repairs, refer to the relevant section of the
workshop manual

Inspection and Verification


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 checked and/or the donor vehicle


NOTE: Check and rectify basic faults before beginning diagnostic routines including pinpoint tests

1. Verify the customer concern by operating the seatbelt

2. Visually inspect for obvious signs of mechanical or electrical damage

Visual 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
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
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to
the next step

4. If the cause is not visually evident, carry out the test methods described below, alternatively check for diagnostic
trouble codes and refer to the relevant diagnostic trouble code index

For a complete list of all diagnostic trouble codes that could be logged on this vehicle, please refer to section 100-00.
REFER to: Supplemental Restraint System (SRS) Health and Safety Precautions (100-00 General Information, Description and Operation) /
Diagnostic Trouble Code (DTC) Index - DTC: Restraints Control Module (RCM) (100-00, Description and Operation).

Symptom Chart for Seatbelt Rows 1, 2

Symptom Possible Causes Action Seatbelt jammed -
Webbing tight
Backlock effect in action (webbing retracted
quickly and came to sudden stop)
Seatbelt retractor not installed correctly
Automatic locking retractor activated (clicking
– during retraction only)
GO to Pinpoint Test A. GO to Pinpoint Test F. See the automatic locking retractor
description below Seatbelt jammed -
Seatbelt webbing trapped in seat
GO to Pinpoint Test B. Webbing loose Seatbelt retractor webbing guide loose GO to Pinpoint Test C. Twist in webbing GO to Pinpoint Test D. Interference in webbing routing GO to Pinpoint Test E. D-loop not rotating correctly GO to Pinpoint Test G. Seatbelt - Intermittent jamming
Seatbelt retractor not installed correctly
GO to Pinpoint Test F. Seatbelt - Slow retraction
Seatbelt retractor webbing guide loose
GO to Pinpoint Test C. Twist in seatbelt webbing GO to Pinpoint Test D. Interference in webbing routing GO to Pinpoint Test E. Seatbelt retractor not installed correctly GO to Pinpoint Test F. D-loop not rotating correctly GO to Pinpoint Test G. Foreign object/debris GO to Pinpoint Test E. Seatbelt - Not retracting
Seatbelt retractor webbing guide loose
GO to Pinpoint Test C. Twist in seatbelt webbing GO to Pinpoint Test D. D-loop not rotating correctly GO to Pinpoint Test G. Interference in webbing routing GO to Pinpoint Test E. Foreign object/debris GO to Pinpoint Test E. Seatbelt - Not extracting
Backlock effect-in action (webbing retracted
GO to Pinpoint Test A. quickly and came to sudden stop) GO to Pinpoint Test F. Seatbelt retractor not installed correctly GO to Pinpoint Test C. Seatbelt retractor webbing guide loose GO to Pinpoint Test D. Twist in seatbelt webbing GO to Pinpoint Test G. D-loop not rotating correctly GO to Pinpoint Test E. Interference in webbing routing GO to Pinpoint Test E. Foreign object/debris See the automatic locking retractor Automatic locking retractor activated (clicking description below – during retraction only) Seatbelt - Noisy during
operation
Automatic locking retractor activated (clicking–
during retraction only)
Interference in webbing routing (rubbing)
GO to Pinpoint Test B. GO to Pinpoint Test E. Seatbelt buckle - Not
latching / jammed
Foreign object/debris
CAUTION: Do not insert any objects or
tools into the buckle head
GO to Pinpoint Test H.
Inertia Reel Seatbelts

The vehicle is equipped with (two row one) and (three row two) inertia reel seatbelts
These seatbelts are "dual sensitive" which means that they have:
Car sense system - A vehicle motion sensor, which locks the seatbelt webbing under braking, cornering, on steep
hills and in adverse camber conditions, when parked on a steep incline or driveway or two wheels on a high curb
Web sense system - A webbing motion sensor, which locks when the seatbelt webbing is extracted suddenly
The seatbelts in the following positions are equipped with an automatic locking retractor function:

Carline Market Seat position Automatic Locking Retractor Installed From Model Year XK (X150) All Driver No 2007 XK (X150) ROW Passenger No 2007 XK (X150) US Passenger Yes 2007 XK (X150) ROW Row 2 Yes 2007 XK (X150) US Row 2 Yes 2007 XF (X250) All Driver No 2009 XF (X250) ROW Passenger No 2009 XF (X250) US Passenger Yes 2009 XF (X250) ROW Row 2 No 2009 XF (X250) US Row 2 Yes 2009 XJ (X351) All Driver No 2010 XJ (X351) ROW Passenger No 2010 XJ (X351) US Passenger Yes 2010 XJ (X351) ROW Row 2 No 2010 XJ (X351) US Row 2 Yes 2010 The automatic locking retractor function is a feature to secure a child seat or heavy load to the seat

Activation Deactivation
NOTE: When automatic locking retractor is activated, no further webbing
can be drawn from the seatbelt retractor, prior to disengagement of the
automatic locking. This can be mistaken as a jammed seatbelt retractor
Activated by total extraction of the webbing Automatic locking retractor is deactivated by
allowing the webbing to retract until the
clicking stops (close to park position) When activated the automatic locking retractor is identified by a clicking noise
during webbing retraction When deactivated the automatic locking
retractor seatbelt changes state, from a static
seatbelt to an automatic seatbelt Seatbelt Locking Test

With the vehicle stationary and on level ground take firm hold of the seatbelt webbing (on the tongue side of the upper
seatbelt anchor) and withdraw sharply, the retractor should lock. Preventing further webbing release (repeat this test 3
times). Any seatbelt retractor which fails to lock must not be used and a new seatbelt must be installed.

DTC Index

For a list of diagnostic trouble codes that could be logged on this vehicle, please refer to Section 100-00 or for removal and
installation/description and operation see Section 501-20.

Diagnostic Guide Inertia Reel Seatbelts

PINPOINT TEST A : BACKLOCK TEST
CONDITIONS DETAILS/RESULTS/ACTIONS A1: BACKLOCK 1 Visually inspect the condition of the suspect seatbelt 2 Draw a maximum of 20mm of the webbing from the seatbelt retractor with moderate force. Then release the webbing 3 Check for correct operation twice Does the webbing move freely then retract correctly?
Yes
No further action required
No
For first row seatbelt GO to Pinpoint Test C. For second and third row seatbelts GO to Pinpoint Test B.
PINPOINT TEST B : WEBBING-TRAPPED IN SEAT TEST
CONDITIONS DETAILS/RESULTS/ACTIONS B1: WEBBING-TRAPPED IN SEAT 1 Visually inspect the condition of the suspect seatbelt 2 Lift the seat base or release the seat backrest as required 3 Free the trapped webbing, allow the webbing to retract Note: If the automatic locking retractor is activated, allow the webbing to retract until the clicking stops 4 Check for correct operation twice Does the webbing move freely then retract correctly?
Yes
No further action required
No
GO to Pinpoint Test C.