Jaguar XJ (X350). Manual — part 1569

power or ground power or ground, for

additional information on
vehicles with passenger
seat position switch
installed carry out any
pinpoint tests associated
with this DTC using the
manufacturer approved
diagnostic system, for
additional information,
GO to Pinpoint Test
G1043827p22.
For early vehicles without
passenger seat position
switch installed GO to
Pinpoint Test
G1043827p26.

Lamp fault
code = 49

C1948

Driver Seat
Track Position
Switch Circuit
Resistance out
of range

•

Restraint control
module, driver
seat track
position switch -
circuit fault

Refer to electrical circuit
diagrams, notes and check
restraint control module,
driver seat track position
switch for circuit fault, for
additional information on
vehicles with passenger
seat position switch
installed carry out any
pinpoint tests associated
with this DTC using the
manufacturer approved
diagnostic system, for
additional information,
GO to Pinpoint Test
G1043827p22.
For early vehicles without
passenger seat position
switch installed GO to
Pinpoint Test
G1043827p26.

Lamp fault
code = 49

C1981

Driver Front
Driver's Seat
Track Position
Switch Circuit
Fault

•

Restraint control
module, driver
seat track
position switch
circuit - short to
power or open
circuit

Refer to electrical circuit
diagrams, notes and check
restraint control module,
driver seat track position
switch circuit for short to
power or open circuit, for
additional information,
GO to Pinpoint Test
G1043827p22.
For early vehicles without
passenger seat position

switch installed GO to
Pinpoint Test
G1043827p26.

Lamp fault
code = 48

C2200

Front
Passenger's Seat
Track Position
Switch Circuit
Fault

•

Restraint control
module,
passenger seat
track position
switch circuit -
short to power or
open circuit

Carry out any pinpoint
tests associated with this
DTC using the
manufacturer approved
diagnostic system. Refer
to electrical circuit
diagrams, notes and check
restraint control module,
passenger seat track
position switch circuit for
short to power or open
circuit

Lamp fault
code = 48

C2202

Passenger's Seat
Track Position
Switch Circuit
Short to Ground

•

Restraint control
module,
passenger seat
track position
switch circuit -
short to ground

Carry out any pinpoint
tests associated with this
DTC using the
manufacturer approved
diagnostic system. Refer
to electrical circuit
diagrams, notes and check
restraint control module,
passenger seat track
position switch circuit for
short to ground

Lamp fault
code = 48

C2204

Passenger's Seat
Track Position
Switch Circuit
Resistance out
of range

•

Restraint control
module,
passenger seat
track position
switch - circuit
fault

Carry out any pinpoint
tests associated with this
DTC using the
manufacturer approved
diagnostic system. Refer
to electrical circuit
diagrams, notes and check
Restraint control module,
passenger seat track
position switch for circuit
fault

Pinpoint tests

PINPOINT TEST G1043827p1 : AIR BAG
WARNING LAMP INOPERATIVE

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G1043827t1 : CHECK THE WARNING LAMP CIRCUIT
FOR SHORT TO GROUND

1. Disconnect the battery negative terminal. 2. Wait one minute for the system to become safe.
3. Disconnect the restraints control module electrical connector, CR86. 4. Disconnect the
instrument cluster electrical connector, IP05. 5. Measure the resistance between CR86, pin
019 (YU) and GROUND.

•

Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.

-> No
CHECK the warning lamp LED, replace as necessary. If the LED is good, contact dealer
technical support for advice on possible RCM failure.

PINPOINT TEST G1043827p2 : B1869,
B1870: WARNING LAMP ON
CONSTANTLY

G1043827t2 : CHECK THE WARNING LAMP CIRCUIT
FOR SHORT TO POWER

1. Disconnect the battery negative terminal. 2. Wait one minute for the system to become safe.
3. Disconnect the restraints control module electrical connector, CR86. 4. Disconnect the
instrument cluster electrical connector, IP05. 5. Reconnect the battery negative terminal. 6.
Measure the voltage between IP05, pin 01 (YU) and GROUND.

•

Is the voltage greater than 3 volts?

-> Yes
REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.

-> No
GO to Pinpoint Test G1043827t3.

G1043827t3 : CHECK THE WARNING LAMP CIRCUIT
FOR OPEN CIRCUIT

1. Measure the resistance between IP05, pin 01 (YU) and CR86, pin 19 (YU).

•

Is the resistance greater than 5 ohms?

-> Yes
REPAIR the open circuit. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.

-> No
CONTACT dealer technical support for advice on possible IC failure.

PINPOINT TEST G1043827p3 : DTC
B2290, B2909: FLASH CODE 16:
OCCUPANT CLASSIFICATION SENSOR
(OCM)/PASSENGER WEIGHT SENSOR
(PWS)/ BELT TENSION SENSOR
MALFUNCTION

G1043827t4 : CHECK THE POWER SUPPLY TO THE
OCM

1. Disconnect the battery negative terminal. 2. Wait one minute for the system to become safe.
3. Disconnect the OCM electrical connector, SP30. 4. Reconnect the battery negative
terminal. 5. Turn the ignition switch to the ON position. 6. Measure the voltage between
SP30, pin 22 (WU) and GROUND.

•

Is the voltage greater than 10 volts?

-> Yes
GO to Pinpoint Test G1043827t5.


-> No
REPAIR the circuit between the OCM and battery. This circuit includes the primary junction
box (fuse 29). For additional information, refer to the wiring diagrams. CLEAR the DTC.
TEST the system for normal operation.

G1043827t5 : CHECK THE GROUND TO THE OCM

1. Turn the ignition switch to the OFF position. 2. Measure the resistance between SP30, pin
23 (BK) and GROUND.

•

Is the resistance greater than 5 ohms?

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