Jaguar XJ (X350). Service manual — part 117

GO to Pinpoint Test

G256924t46

.

G256924t46 : CHECK THE RIGHT-HAND REAR HEIGHT SENSOR SUPPLY
CIRCUIT FOR SHORT TO B+

1. Measure the voltage between CR90, pin 10 (YR) 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

G256924t47

.

G256924t47 : CHECK THE RIGHT-HAND REAR HEIGHT SENSOR SUPPLY
CIRCUIT FOR HIGH RESISTANCE

1. Disconnect the right-hand rear height sensor electrical connector, CV04. 2. Measure the resistance

between CR90, pin 10 (YR) and CV04, pin 05 (YR).

•

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. CLEAR the

DTC. TEST the system for normal operation.

-> No

CHECK for DTCs indicating a sensor fault. Contact dealer technical support for confirmation of

possible module failure, and/or raise an EPQR.

PINPOINT TEST G256924p17 : C1830;
RELAY DRIVE CIRCUIT FAULT

G256924t51 : CHECK THE RELAY DRIVE CIRCUIT FOR SHORT TO B+

1. Remove the air suspension relay. 2. Measure the voltage between the relay base, pin 02, 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

G256924t48

.

G256924t48 : CHECK THE RELAY DRIVE CIRCUIT FOR SHORT TO GROUND

1. Measure the resistance between the relay base, pin 02, 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

GO to Pinpoint Test

G256924t52

.

G256924t52 : CHECK THE RELAY DRIVE CIRCUIT FOR HIGH RESISTANCE

1. Disconnect the battery negative terminal. 2. Disconnect the ASU electrical connector, CR91. 3.

Measure the resistance between CR91, pin 12 (NR).

•

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. CLEAR the

DTC. TEST the system for normal operation.

-> No

INSTALL a new air suspension relay. CLEAR the DTC. TEST the system for normal operation. If the DTC

is repeated, contact dealer technical support for confirmation of possible module failure, and/or

raise an EPQR.

PINPOINT TEST G256924p18 : C1881,
C1883; RIGHT-HAND FRONT HEIGHT
SENSOR SIGNAL CIRCUIT FAULT

G256924t53 : CHECK THE RIGHT-HAND FRONT SIGNAL CIRCUIT FOR SHORT
TO B+

1. Disconnect the right-hand front height sensor electrical connector, EC18. 2. Measure the voltage

between EC18, pin 04 (GW) and GROUND.

•

Is the voltage greater than 3 volts?

www.

-> 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

G256924t54

.

G256924t54 : CHECK THE RIGHT-HAND FRONT SIGNAL CIRCUIT FOR SHORT
TO GROUND

1. Measure the resistance between EC18, pin 04 (GW) 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

GO to Pinpoint Test

G256924t55

.

G256924t55 : CHECK THE RIGHT-HAND FRONT SIGNAL CIRCUIT FOR HIGH
RESISTANCE

1. Disconnect the battery negative terminal. 2. Disconnect the ASU electrical connector, CR90. 3.

Measure the resistance between CR90, pin 05 (GW) and EC18, pin 04 (GW).

•

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. CLEAR the

DTC. TEST the system for normal operation.

-> No

CHECK for DTCs indicating a sensor fault. Contact dealer technical support for confirmation of

possible module failure, and/or raise an EPQR.

PINPOINT TEST G256924p19 : C1885,
C1887; RIGHT-HAND REAR HEIGHT
SENSOR SIGNAL CIRCUIT FAULT

G256924t56 : CHECK THE RIGHT-HAND REAR SIGNAL CIRCUIT FOR SHORT
TO B+

1. Disconnect the right-hand rear height sensor electrical connector, CV04. 2. Measure the voltage

between CV04, pin 04 (YG) 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

G256924t57

.

G256924t57 : CHECK THE RIGHT-HAND REAR SIGNAL CIRCUIT FOR SHORT
TO GROUND

1. Measure the resistance between CV04, pin 04 (YG) 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

GO to Pinpoint Test

G256924t58

.

G256924t58 : CHECK THE RIGHT-HAND REAR SIGNAL CIRCUIT FOR HIGH
RESISTANCE

1. Disconnect the battery negative terminal. 2. Disconnect the ASU electrical connector, CR90. 3.

Measure the resistance between CR90, pin 11 (YG) and CV04, pin 04 (YG).

•

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. CLEAR the

DTC. TEST the system for normal operation.

-> No

CHECK for DTCs indicating a sensor fault. Contact dealer technical support for confirmation of

possible module failure, and/or raise an EPQR.

www.