Jaguar X-Type Sedan and Estate (Wagon). Service manual — part 617
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Disconnect the seat backrest motor electrical connector RS6.
Operate the seat control switch to the REARW ARD RECLINE position.
Measure the voltage between the seat backrest motor electrical connector RS6 pin 2, (YR), and RS6 pin 1, (WR).
Is the voltage greater than 10 volts?
Yes
INSTALL a new seat backrest motor. For additional information, refer to
Motor—Front Seat Backrest
.
No
GO to E7
. .
E7: CHECK THE RH FRONT SEAT BACKREST MOTOR CIRCUIT
Operate the seat control switch to the REARW ARD RECLINE position.
Measure the voltage between the seat backrest motor electrical connector RS6 pin 2, (YR), and ground.
Is the voltage greater than 10 volts?
Yes
GO to E8
. .
No
GO to E9
. .
E8: CHECK THE RH FRONT SEAT BACKREST MOTOR CIRCUIT FOR OPEN
Disconnect the seat control switch electrical connector RS1.
Measure the resistance between the seat backrest motor electrical connector RS6 pin 1, (W R), and the seat control
switch electrical connector RS1 pin 7, (W R).
Is the resistance less than 5 ohms?
Yes
INSTALL a new seat control switch. For additional information, refer to
Seat Control Switch
.
No
REPAIR the circuit. TEST the system for normal operation.
E9: CHECK THE RH FRONT SEAT BACKREST MOTOR CIRCUIT FOR OPEN
Disconnect the seat control switch electrical connector RS1.
Measure the resistance between the seat backrest motor electrical connector RS6 pin 2, (YR), and the seat control
switch electrical connector RS1 pin 12, (YR).
Is the resistance less than 5 ohms?
Yes
INSTALL a new seat control switch. For additional information, refer to
Seat Control Switch
.
No
REPAIR the circuit. TEST the system for normal operation.
PINPOINT TEST F : THE POWER LUMBAR IS INOPERATIVE
TEST
CONDITIONS
DETAILS/RESULTS/ACTIONS
F1: CHECK THE LH FRONT SEAT LUMBAR ASSEMBLY OPERATION - HIGH SPECIFICATION SEAT ONLY
Operate the LH seat lumbar control switch to the INFLATE position.
Is the LH seat lumbar adjustment inoperative?
Yes
GO to F2
. .
No
GO to F10
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F2: CHECK THE LH SEAT LUMBAR CONTROL SWITCH POWER SUPPLY
Disconnect the seat control switch electrical connector LS16.
Measure the voltage between the seat control switch electrical connector LS16 pin 2, (OG), and ground.
Is the voltage greater than 10 volts?
Yes
GO to F3
. .
No
REPAIR the circuit. TEST the system for normal operation.
F3: CHECK THE LH SEAT LUMBAR CONTROL SWITCH GROUND CIRCUIT
Measure the resistance between the seat control switch electrical connector LS16 pin 3, (B), and ground and
between LS16 pin 6, (B), and ground.
Are the resistances less than 5 ohms?
Yes
GO to F4
. .
No
REPAIR the circuit. TEST the system for normal operation.
F4: CHECK THE LH SEAT LUMBAR ASSEMBLY CIRCUITS
Disconnect the seat lumbar assembly electrical connector LS19.
Operate the seat lumbar control switch to the INFLATE position.
Measure the voltage between the seat lumbar motor electrical connector LS19 pin 1, (YG), and LS19 pin 2, (B).
Is the voltage greater than 10 volts?
Yes
GO to F5
. .
No
GO to F7
. .
F5: CHECK THE LH SEAT LUMBAR ASSEMBLY DEFLATE CIRCUIT
Operate the seat lumbar control switch to the DEFLATE position.
Measure the voltage between the seat lumbar assembly electrical connector LS19 pin 3, (W G), and ground.
Is the voltage greater than 10 volts?
Yes
INSTALL a new lumbar assembly. For additional information, refer to
Lumbar Assembly
.
No
GO to F6
. .
F6: CHECK THE LH SEAT LUMBAR ASSEMBLY DEFLATE CIRCUIT FOR OPEN
Disconnect the seat lumber control switch electrical connector LS16.
Measure the resistance between the seat lumbar assembly electrical connector LS19 pin 3, (W G), and the seat
lumbar control switch electrical connector LS16 pin 7, (W G).
Is the resistance less than 5 ohms?
Yes
INSTALL a new seat lumbar control switch. TEST the system for normal operation.
No
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REPAIR the circuit. TEST the system for normal operation.
F7: CHECK THE LH SEAT LUMBAR ASSEMBLY INFLATE CIRCUIT
Operate the seat lumbar control switch to the INFLATE position.
Measure the voltage between the seat lumbar motor electrical connector LS19 pin 1, (YG), and ground.
Is the voltage greater than 10 volts?
Yes
GO to F8
. .
No
GO to F9
. .
F8: CHECK THE LH SEAT LUMBAR ASSEMBLY GROUND CIRCUIT
Measure the resistance between the seat lumbar assembly electrical connector LS19 pin 2, (B), and ground.
Is the resistance less than 5 ohms?
Yes
INSTALL a new seat lumbar control switch. TEST the system for normal operation.
No
REPAIR the circuit. TEST the system for normal operation.
F9: CHECK THE LH SEAT LUMBAR ASSEMBLY INFLATE CIRCUIT
Disconnect the seat lumber control switch electrical connector LS16.
Measure the resistance between the seat lumbar assembly electrical connector LS19 pin 1, (YG), and the seat
lumbar control switch electrical connector LS16 pin 1, (YG).
Is the resistance less than 5 ohms?
Yes
INSTALL a new seat lumbar control switch. TEST the system for normal operation.
No
REPAIR the circuit. TEST the system for normal operation.
F10: CHECK THE RH SEAT LUMBAR CONTROL SWITCH POWER SUPPLY
Disconnect the seat control switch electrical connector RS16.
Measure the voltage between the seat control switch electrical connector RS16 pin 2, (OY), and ground.
Is the voltage greater than 10 volts?
Yes
GO to F11
. .
No
REPAIR the circuit. TEST the system for normal operation.
F11: CHECK THE RH SEAT LUMBAR CONTROL SWITCH GROUND CIRCUIT
Measure the resistance between the seat control switch electrical connector RS16 pin 3, (B), and ground and
between RS16 pin 6, (B), and ground.
Are the resistances less than 5 ohms?
Yes
GO to F12
. .
No
REPAIR the circuit. TEST the system for normal operation.
F12: CHECK THE RH SEAT LUMBAR ASSEMBLY CIRCUITS
Disconnect the seat lumbar assembly electrical connector RS19.
Operate the seat lumbar control switch to the INFLATE position.
Measure the voltage between the seat lumbar motor electrical connector RS19 pin 1, (WG), and RS19 pin 2, (B).
Is the voltage greater than 10 volts?
Yes
GO to F13
. .
No
GO to F15
. .
F13: CHECK THE RH SEAT LUMBAR ASSEMBLY DEFLATE CIRCUIT
Operate the seat lumbar control switch to the DEFLATE position.
Measure the voltage between the seat lumbar assembly electrical connector RS19 pin 3, (YG), and ground.
Is the voltage greater than 10 volts?
Yes
INSTALL a new lumbar assembly. For additional information, refer to
Lumbar Assembly
.
No
GO to F14
. .
F14: CHECK THE RH SEAT LUMBAR ASSEMBLY DEFLATE CIRCUIT FOR OPEN
Disconnect the seat lumber control switch electrical connector RS16.
Measure the resistance between the seat lumbar assembly electrical connector RS19 pin 3, (YG), and the seat
lumbar control switch electrical connector RS16 pin 7, (YG).
Is the resistance less than 5 ohms?
Yes
INSTALL a new seat lumbar control switch. TEST the system for normal operation.
No
REPAIR the circuit. TEST the system for normal operation.
F15: CHECK THE RH SEAT LUMBAR ASSEMBLY INFLATE CIRCUIT
Operate the seat lumbar control switch to the INFLATE position.
Measure the voltage between the seat lumbar motor electrical connector RS19 pin 1, (WG), and ground.
Is the voltage greater than 10 volts?
Yes
GO to F16
. .
No
GO to F17
. .
F16: CHECK THE RH SEAT LUMBAR ASSEMBLY GROUND CIRCUIT
Measure the resistance between the seat lumbar assembly electrical connector RS19 pin 2, (B), and ground.
Is the resistance less than 5 ohms?
Yes
INSTALL a new seat lumbar control switch. TEST the system for normal operation.
No
REPAIR the circuit. TEST the system for normal operation.
F17: CHECK THE RH SEAT LUMBAR ASSEMBLY INFLATE CIRCUIT
Disconnect the seat lumber control switch electrical connector RS16.
Measure the resistance between the seat lumbar assembly electrical connector RS19 pin 1, (W G), and the seat
lumbar control switch electrical connector RS16 pin 1, (W G).
Is the resistance less than 5 ohms?
Yes
INSTALL a new seat lumbar control switch. TEST the system for normal operation.
No
REPAIR the circuit. TEST the system for normal operation.
Published: 11-May-2011
Seating - Front Seat
Removal and Installation
Removal
• W ARNINGS:
An RCM module only requires replacement if the system has incurred five separate deployments. At no time change an RCM for less
than five separate deployments.
Always wear safety glasses when repairing an air bag supplemental restraint system (SRS) vehicle and when handling an air bag
module. Failure to follow this instruction may result in personal injury.
Carry a live air bag module with the air bag and trim cover pointed away from your body. This will reduce the risk of injury in the
event of an accidental deployment. Failure to follow this instruction may result in personal injury.
Do not set a live air bag module down with the trim cover face down. Failure to follow this instruction may result in personal injury.
After deployment, the air bag surface can contain deposits of sodium hydroxide, a product of the gas generant combustion that is
irritating to the skin. Wash your hands with soap and water afterwards. Failure to follow this instruction may result in personal injury.
Never probe the connectors on the air bag module. Doing so may result in air bag deployment. Failure to follow this instruction may
result in personal injury.
Air bag modules with discolored or damaged trim covers must be replaced.
Vehicle sensor orientation is critical for correct system operation. If a vehicle equipped with an air bag supplemental restraint system
(SRS) is involved in a collision, inspect the sensor mounting bracket and wiring pigtail for deformation. If damaged, install a new sensor
whether or not the air bag is deployed. If the body work is damaged this will have to be addressed.
To avoid accidental deployment and possible personal injury, the backup power supply must be depleted before repairing or replacing
any air bag supplemental restraint system (SRS) components. To deplete the backup power supply energy, disconnect the battery ground
cable and wait one minute. Failure to follow this instruction may result in personal injury.
• NOTE: Repair is made by replacement only. If a part is replaced and the new part does not correct the condition, install the original part
and carry out the diagnostic procedure again.
• NOTE: When installing a new air bag module, a prepaid return postcard is provided with the replacement air bag module. The serial
number for the new part and the vehicle identification number (VIN) must be recorded and sent to Jaguar Cars Ltd.
1. Inspect the front seat to check if a front seat stabilization spring is
installed. If a front seat stabilization spring is installed. REFER to
SERVICE ACTION S948 before carrying out any work on the seat.
2. Move the seat fully rearwards.
3. Remove the seat front retaining bolts.
4. Move the seat fully forwards.
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