6. Locate climate seat module, (refer to Electrical Information - Electrical Reference Library, contained in TOPIx) for
guidance on how to gain access to the connector(s)
7. Locate and disconnect relevant connector prior to pin test
8. Using ohm-meter to probe each heat/cooled unit pins (at rear of connector), reading should achieve no greater than 10
ohms after 1 minute (initial fluctuations in readings may occur using ohm-meter, post 1 minute readings will have
stabilized)
Connector and Pin Information
X250 (All Model Years) Terminal ID 1 2 3 4 7 8 9 10 Climate Seat
Unit Location Right
Cushion Right Cushion
Right
Backrest Right
Backrest Left Cushion Left Cushion
Left
Backrest Left Backrest Wiring Colour -
Left Hand
Drive Vehicles GY-BU -
Grey/Blue BU - Blue BU-BN -
Blue/Brown WH - White YE-BU - Yellow/Blue BU-OG -
Blue/Orange GY-VT -
Grey/Violet WH-VT -
White/Violet Wiring Colour -
Right Hand
Drive Vehicles YE-BU - Yellow/Blue BU-OG -
Blue/Orange GY-VT -
Grey/Violet WH-VT -
White/Violet GY-BU -
Grey/Blue BU - Blue BU-BN -
Blue/Brown WH - White
1. If any unit reads greater than 10 ohms, replace only that defective unit
2. If all units read less than 10 ohms but faults are still suspected, do not replace any units. Refer to step 4 below
3. As a final check, when a faulty unit has been identified strip the seat to access unit connector, REFER to: Seats
(501-10, Removal & Installation) and re-check ohm reading to confirm greater than 10 ohms prior to removing unit
4. In cases where the above diagnostic routine does NOT identify a failed unit, please refer to "Over Temperature and
Fluid/Air Leak Diagnostics" below. Also check for any live technical service bulletins referring to the seat climate system
Seat Climate Control Module/Seat Climate Assembly - Further Diagnostics
In the event of suspected climate seat faults use the pinpoint tests detailed below
Connector Checks
First, check the integrity of the three seat climate control module harness connectors:
1. Disconnect each connector
2. Inspect each connector for cracks and breaks, replace as required
3. Check the integrity of connector terminals for bent terminals, backed-out or badly crimped wires. Rectify as required
4. Reconnect all connectors and retest. If seat climate functions are still faulty, note any DTCs that have been logged by
the seat climate control module(s) and refer to the table and pinpoint tests below:
DTC Logged Pinpoint Test Required
NOTE: Where DTCs are marked in bold, this means that there are two possible diagnostic processes that
may be applied to resolve these faults. Check the listings below to reference an alternative set of pinpoint
tests for these DTCs
B10B9-13 Blower Control - Circuit open B10B9-
4B Blower Control - Over temperature B1157-
13 Blower Control B - Circuit open B1157-4B
Blower Control B - Over temperature
B120E-4B Right Thermal Electric Device Control - Over temperature
B1224-4B Left Thermal Electric Device Control - Over temperature
B122A-11 Right Seat Cushion Blower Speed Sensor - Circuit short to ground
B122A-12 Right Seat Cushion Blower Speed Sensor - Circuit short to battery
B122B-11 Right Seat Back Blower Speed Sensor - Circuit short to ground
B122B-12 Right Seat Back Blower Speed Sensor - Circuit short to battery
B122C-11 Left Seat Cushion Blower Speed Sensor - Circuit short to ground
B122C-12 Left Seat Cushion Blower Speed Sensor - Circuit short to battery
B122D-11 Left Seat Back Blower Speed Sensor - Circuit short to ground
B122D-12 Left Seat Back Blower Speed Sensor - Circuit short to battery GO to Pinpoint
Test A.
NOTE: Where DTCs are marked in bold, this means that there are two possible diagnostic processes that
may be applied to resolve these faults. Check the listings below to reference an alternative set of pinpoint
tests for these DTCs
B120E-13 Right Thermal Electric Device Control - Circuit open GO to Pinpoint
Test B.
DTC Logged Pinpoint Test Required B120E-19 Right Thermal Electric Device Control - Circuit current above threshold
B1223-13 Right Seat Cushion Temperature Sensor - Circuit open
B1224-13 Left Thermal Electric Device Control - Circuit open
B1224-19 Left Thermal Electric Device Control - Circuit current above threshold
B1225-13 Right Seat Back Temperature Sensor - Circuit open
B1229-13 Left Seat Back Temperature Sensor - Circuit open
B1235-13 Left Seat Cushion Temperature Sensor - Circuit open
B120F-98 Left Seat Cushion - Component or system over temperature
B122E-98 Right Seat Cushion - Component or system over temperature
B122F-98 Right Seat Back - Component or system over temperature
B1230-98 Left Seat Back - Component or system over temperature
B1231-7A Right Seat - Fluid leak or seal failure
B1232-7A Left Seat - Fluid leak or seal failure GO to Pinpoint
Test C.
NOTE: Where DTCs are marked in bold, this means that there are two possible diagnostic processes that
may be applied to resolve these faults. Check the listings above to reference an alternative set of pinpoint
tests for these DTCs
B120E-4B Right Thermal Electric Device Control - Over temperature
B120E-13 Right Thermal Electric Device Control - Circuit open
B120E-19 Right Thermal Electric Device Control - Circuit current above threshold
B1223-13 Right Seat Cushion Temperature Sensor - Circuit open
B1224-4B Left Thermal Electric Device Control - Over temperature
B1224-13 Left Thermal Electric Device Control - Circuit open
B1224-19 Left Thermal Electric Device Control - Circuit current above threshold
B1225-13 Right Seat Back Temperature Sensor - Circuit open
B1229-13 Left Seat Back Temperature Sensor - Circuit open
B1235-13 Left Seat Cushion Temperature Sensor - Circuit open GO to Pinpoint
Test D.
PINPOINT TEST A : CLIMATE SEATS ASSEMBLY - BLOWER DIAGNOSTICS TEST
CONDITIONS DETAILS/RESULTS/ACTIONS A1: CLIMATE SEATS ASSEMBLY - BLOWER SPEED CONTROL CIRCUIT RESISTANCE CHECKS AT SEAT TO VEHICLE
CONNECTOR 1 Uncouple connector C3HS03C from the seat climate control module 2 Check the resistance of the climate seats blower speed control circuits at connector C3HS03C For right-side seat cushion blower, check resistance at pins 3 and 7
For right-side seat backrest blower, check resistance at pins 4 and 7
For left-side seat cushion blower, check resistance at pins 11 and 15
For left-side seat backrest blower, check resistance at pins 12 and 15 Is the resistance between 290 and 420 kilo-ohms? Yes
No circuit faults present. No further action
No
GO to A2. A2: CLIMATE SEATS ASSEMBLY - BLOWER POWER CIRCUIT RESISTANCE CHECKS AT SEAT CLIMATE ASSEMBLY
CONNECTOR 1 Locate the appropriate seat backrest/seat cushion climate assembly connector 2 Disconnect connector 3 Check the integrity of connector terminals for bent terminals, backed-out or badly crimped wires. Rectify as required 4 Check the resistance of the climate seats blower power circuits at the climate assembly connector, pins 2 and 4 Is the resistance between 290 and 420 kilo-ohms? Yes
GO to A3. No
Replace the seat climate assembly A3: CLIMATE SEATS ASSEMBLY - BLOWER SPEED CONTROL CIRCUIT RESISTANCE CHECKS AT SEAT CLIMATE
ASSEMBLY CONNECTOR 1 Check the resistance of the climate seats blower control circuits at the climate assembly connector, pins 4 and 7
Glass, Frames and Mechanisms - Fixed Window Glass
Diagnosis and Testing
Principles of Operation Published: 09-Apr-2014
For a detailed description of the Glass, Frames and Mechanisms, refer to the relevant Description and Operation section in 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 tested and/or the donor vehicle.
NOTES:
If a control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty
Policy and Procedures manual, or determine if any prior approval programme is in operation, prior to the installation of a new
module/component.
When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places, and with
an up-to-date calibration certificate. 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.
Refer to Section 100-00 General Information for window glass health and safety precautions.
1. Verify the customer concern
2. Visually inspect for obvious signs of damage and system integrity
Visual Inspection
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, verify the symptom and refer to the Symptom Chart, alternatively check for
Diagnostic Trouble Codes (DTCs) and refer to the DTC Index
5. Check DDW for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific
customer complaint and carry out the recommendations as required
Warranty Repairs
NOTES:
The warranty period for the windshield is twelve months with the exception of delamination and electrical faults.
Warranty repairs should be completed using genuine parts, in accordance with the Warranty Policy and Procedures
Manual.
1. Draw a line around the windshield damage using a marker pen.
2. Photograph the entire windshield. If the damage extends behind any trim, remove the trim and take further
photographs.
3. Photograph the trademark logo and code to validate the windshield as factory fitment.
Symptom Chart
Symptom Possible Causes Action Scratches
Debris trapped under a wiper blade
GO to Pinpoint Test A. Electrical
Physical damage to the windshield
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Item Description Note: A = Hardwired; N = Medium speed CAN 1 Battery 2 Megafuse (250 A) 3 CJB 4 Radio frequency receiver 5 Keylesss vehicle module 6 Door handle, lock/unlock switch and antenna - front passenger 7 Door latch, fast latch - front passenger 8 Door latch, fast latch - RH rear passenger 9 Door handle, lock/unlock switch and antenna - RH rear passenger 10 Door latch, fast latch - LH rear passenger 11 Door handle, lock/unlock switch and antenna - LH rear passenger 12 Door latch, fast latch - driver door 13 Door handle, lock/unlock switch and antenna - driver door
System Operation
The hinged panels are secured with latches and strikers. A remotely operated central locking system controls the locking and
unlocking of the door and luggage compartment latches. A radio frequency Smart Key allows the vehicle to be locked and
unlocked by pressing the appropriate handset buttons. Two levels of central locking system are available: remote central
locking and an optional passive entry system.
The passive entry and associated passive start system allows the driver to unlock and start the vehicle without using a vehicle
key in a door-lock or ignition switch. The passive entry system is an optional fitment while the passive start system is a
standard fitment on all vehicles. The passive start system is combined with the passive anti-theft immobilization system.
Refer to: Anti-Theft - Passive (419-01B Anti-Theft - Passive, Description and Operation).
Emergency access to the vehicle is provided by two concealed key barrels: one located in the front left-hand door handle and
one located on the underside of the luggage compartment lid finisher. An emergency, removable key blade is fitted into the
Smart Key.
Operation of either key barrel unlocks the vehicle but does not disarm the alarm system. The key barrels in the door and
luggage compartment lid are concealed by a plastic cover which can be removed by inserting the blade of the emergency key
into a slot in the cover.
Locking and unlocking conditions using the emergency key in the door key barrel:
If the alarm is not armed the vehicle can be centrally unlocked.
If the alarm is armed the door only can be opened and the alarm will be triggered.
The vehicle cannot be double locked or the alarm system armed using the emergency key.
The vehicle can be centrally locked and unlocked from inside using the interior handle release levers on the front doors only.
Central locking and unlocking can also be performed using lock and unlock buttons on the vehicle's fascia. The driver can select
locking options, single point entry or drive away locking for example, from a menu available on the touch screen.
Central Locking – Radio Frequency Remote System
The radio frequency central locking system, provides locking and unlocking of the vehicle from inside and outside of the
vehicle. The system is operated using buttons on the Smart Key, which transmits radio frequency signals to the central locking
radio frequency receiver.
The system provides additional security by double-locking the doors from outside the vehicle if the lock button, on the Smart
Key, is pressed twice within 3 seconds; this function is not applicable in North American Specification (NAS) and Japanese
markets.
Additional buttons on the Smart Key provide for the convenience operation of the luggage compartment lid release, headlamp
delay and panic alarm functions. A global open or close feature is also available in certain markets using the lock/unlock
buttons.
Passive Entry
On vehicles fitted with the optional passive entry system, the vehicle can be unlocked without the use of a key blade or
pressing buttons on the Smart Key. The Smart Key operates the passive entry system in addition to the passive start system.
Refer to: Anti-Theft - Passive (419-01B Anti-Theft - Passive, Description and Operation).
The passive entry system is controlled by the keyless vehicle module and five low frequency antennas. One antenna located in
each door handle and one antenna located behind the rear bumper cover.
When a vehicle door handle is pulled to the first five-percent of its travel and the Smart Key is within one meter of the handle;
the Smart Key receives the low-frequency signal transmitted from the keyless vehicle module. The Smart Key responds with a
radio frequency transmission of its authorization code. The radio frequency signal is received by the central locking radio-
frequency receiver and passed to the keyless vehicle module which checks and approves the code as valid. Once the handle is
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:
Operation of the airbag warning indicator is controlled by a high speed CAN bus message from the RCM to the instrument cluster. The RCM sends the signal to illuminate the airbag warning indicator if a fault is detected, and for approximately 6 seconds during the bulb check at the beginning of each ignition cycle.
Occupant Monitoring
There are two types of occupant monitoring:
In all markets except NAS & Australia, vehicles have an occupant detection sensor
In NAS markets, vehicles have an occupant classification system
For markets which have an occupant detection sensor, this has no interface with the restraints system and only provides the
belt reminder function.
For markets that have an occupant classification system, this provides the RCM with the occupancy status of the front passenger seat. The restraints control module uses this and the seat buckle status in the evaluation of the firing strategy for
the passenger front airbag, side airbag, and pretensioner.
Safety Belt Sensors
The buckle of each front safety belt incorporates a Hall effect sensor that provides a safety belt status signal to the RCM. The RCM broadcasts the status of the two front safety belts on the high speed CAN bus for use by the instrument cluster. In the event of a front impact the RCM will deploy the pretensioners provided the safety belt buckles are fastened. The safety belt buckle pretensioners have a lower deployment threshold than that required by the airbags. Hence it is possible during a minor
collision, which exceeds the deployment threshold and will deploy only the safety belt buckle pretensioners. Airbag Warning Indicator
There is a fault with the passenger airbag firing circuit(s).
The passenger airbag is deactivated with the passenger airbag deactivation switch (where fitted).
Required by passenger seat occupant monitoring (see below).
Passenger Airbag Deactivation Switch (All Except NAS)
The passenger airbag deactivation switch provides a method of manually disabling the passenger airbag. The switch is
installed in the front passenger end of the instrument panel and operated by the ignition key.
When the passenger airbag deactivation switch is operated, it changes a ground connection between two pins in the
connectors of the RCM. When the passenger airbag deactivation switch is selected to OFF, the RCM disables the passenger airbag and, if the front passenger seat is occupied, illuminates the passenger airbag deactivation indicator.
Occupant Detection System
There are two types of occupant monitoring:
In all markets except NAS & Australia, vehicles have an occupant detection sensor
In NAS markets, vehicles have an occupant classification system
For markets which have an occupant detection sensor, this has no interface with the restraints system and only provides the
belt reminder function.
For markets that have an occupant classification system, this provides the RCM with the occupancy status of the front passenger seat. The RCM uses this and the seat buckle status in the evaluation of the firing strategy for the passenger front airbag, side airbag, and pretensioner.
The occupant classification system can determine if the front passenger seat is unoccupied, occupied by a small person, or
occupied by a large person. The occupant classification system consists of:
A pressure pad, installed under the cushion of the front passenger seat, which is connected to a pressure sensor
A safety belt tension sensor, integrated into the anchor point of the front passenger safety belt
An occupant classification module, installed under the front passenger seat.
The pressure pad is a silicone filled bladder. Any load on the pressure pad is detected by the pressure sensor.
The safety belt tension sensor is a strain gauge that measures the load applied by the safety belt anchor to the anchor bolt.
The sensor is located in the lower safety belt anchor point.
- Disadvantage: Scarring and hardening of the surface.
Flattening using a copper electrode.
- Small, sharp dents that face outwards can be worked on with a copper electrode.
Flattening using a flame and body files.
NOTE: When applied correctly, this method can be used with all the attached parts still in place (roof headlining,
wiring harnesses etc.).
- Small, soft dents (only slight stretching): Working at the edges of the dent in an inward spiral pattern, the dent
is heated with an oxyacetylene torch (torch size 1 - 2 mm, excess gas flame) to approx. 250° C.
- Working rapidly with a body file extracts heat from the edge area until the dent is flattened. Preferably alternate
between two files. This increases the amount of heat that can be extracted.
Safety measures
The electronic control modules (ECM) fitted to vehicles make it advisable to follow suitable precautions prior to carrying
out welding repair operations. Harsh conditions of heat and vibration may be generated during these operations which
could cause damage to the modules. In particular, it is essential to follow the appropriate precautions when
disconnecting or removing the airbag RCM.
Do not allow electronic modules or lines to come into contact with the ground connection or the welding electrode.
Seat belt anchorages are a safety critical. When making repairs in these areas, it is essential to follow design
specifications. Note that extra strength low alloy steel may be used for seat belt anchorages. Where possible, the
original production assembly should be used, complete with its seat belt anchorages, or the cut line should be so
arranged that the original seat belt anchorage is not disturbed.
All welds within 250mm (9.842) of seat belt anchorages must be carefully checked for weld quality, including spacing of
spot welds.
Remove the battery before carrying out welding work in its vicinity.
Utmost care must be taken when welding near the fuel tank or other components that contain fuel. If the tank filler
neck or a fuel line must be detached to allow access for welding work, then the fuel tank must be drained and removed.
Never weld, on components of a filled air conditioning system. The same applies if there is a risk of the air conditioning
system heating up.
Connect the ground connection of the electrical welder directly to the part that is to be welded. Make sure that there
are no electrically insulating parts between the ground connection and the welding point.
Adjacent vehicle parts and adjacent vehicles must be shielded against flying sparks and heat.
Pedestrian protection system
The pedestrian protection system is designed to mitigate injuries in a pedestrian collision with the vehicle. It does this by
utilizing a pair of pyrotechnic actuators to lift the hood away from the engine, creating a cushioned impact between the
pedestrian and the vehicle. It is essential that any repair or replacement operations do not affect the safe working of the
system.
For additional information, refer to: Pedestrian Protection System (501-20C Pedestrian Protection System, Description and Operation).
Resistance spot welding
Where resistance spot welds have been used in production, they must be reproduced with new spot welds in replacement
where possible. All such reproduction spot welds should be spaced 25 to 30mm apart.
Setting up the equipment and co-ordinating the welding parameters.
Equipment:
- Follow the equipment manufacturer's instructions for the equipment settings.
- Select the correct electrode arms (as short as possible).
- Align the electrode arms and tips exactly.
- Electrode tips should be convex (rough shaping with a file, fine shaping with a sanding block).
Body:
- Make sure that the flanges to be joined lie perfectly flat to one another.
- Prepare a bare metal joint surface (inside and outside).
Notes on technique/method:
- Carry out a test weld on a sample piece of the material coated in welding paste.
- If any metal parts are located between the electrode arms then there will be a loss of induction and therefore
power (adjust current setting).
- The power needs to be adjusted for high-strength low alloy steel.
- Repeated welding on old welding points often leads to poor quality welds.
- Keep the electrode tips as near as possible to an angle of 90° to the contact surface.
- Keep the pressure on the electrodes for a short period after finishing the weld.
- The electrodes work best if their shape is convex. Clean the contact surface of the electrodes regularly.
Resistance spot welding panels where the total thickness is 3 mm or more
For all repairs to modern Jaguar vehicles, spot-welding equipment should be suitable for reliable welding of zinc-plated,
high-strength and high-tensile steels in three or more layers, up to 5 mm total thickness. If these requirements are not
fulfilled, plug welding must be used for safety reasons. The electrical specifications (current, resistance, heat) of the
spot-welding equipment have different validity, depending upon the type of equipment. Therefore, it is essential that the
manufacturer's instructions are observed with regard to the actual welding performance.
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