Jaguar XJ (X350). Manual — part 120

G256924t82 : CHECK THE RIGHT-HAND FRONT AIR SPRING SOLENOID
DRIVE CIRCUIT FOR SHORT TO B+

1. Measure the voltage between CR22, pin 02 (WB) 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

G256924t83

.

G256924t83 : CHECK THE RIGHT-HAND FRONT AIR SPRING SOLENOID
DRIVE CIRCUIT FOR HIGH RESISTANCE

1. Measure the resistance between CR22, pin 02 (WB) and CR91, pin 03 (WB).

•

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

GO to Pinpoint Test

G256924t84

.

G256924t84 : CHECK THE LEFT-HAND REAR AIR SPRING SOLENOID DRIVE
CIRCUIT FOR SHORT TO GROUND

1. Measure the resistance between CR22, pin 03 (WU) 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

G256924t85

.

G256924t85 : CHECK THE LEFT-HAND REAR AIR SPRING SOLENOID DRIVE
CIRCUIT FOR SHORT TO B+

1. Measure the voltage between CR22, pin 03 (WU) 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

G256924t86

.

G256924t86 : CHECK THE LEFT-HAND REAR AIR SPRING SOLENOID DRIVE
CIRCUIT FOR HIGH RESISTANCE

1. Measure the resistance between CR22, pin 03 (WU) and CR91, pin 05 (WU).

•

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

GO to Pinpoint Test

G256924t87

.

G256924t87 : CHECK THE RIGHT-HAND REAR AIR SPRING SOLENOID DRIVE
CIRCUIT FOR SHORT TO GROUND

1. Measure the resistance between CR22, pin 04 (WG) 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

G256924t85

.

G256924t88 : CHECK THE RIGHT-HAND REAR AIR SPRING SOLENOID DRIVE
CIRCUIT FOR SHORT TO B+

1. Measure the voltage between CR22, pin 04 (WG) 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.

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TEST the system for normal operation.

-> No

GO to Pinpoint Test

G256924t86

.

G256924t89 : CHECK THE RIGHT-HAND REAR AIR SPRING SOLENOID DRIVE
CIRCUIT FOR HIGH RESISTANCE

1. Measure the resistance between CR22, pin 04 (WG) and CR91, pin 06 (WG).

•

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 valve block,

Air Suspension Solenoid Valve Block

CLEAR the DTC. TEST the system for normal operation.

Removal and installation

Air Suspension Compressor

Removal

1 . Disconnect the battery ground cable.

For additional information, refer to

Battery Disconnect and Connect

2 . Remove the radiator splash shield.

For additional information, refer to

Radiator Splash Shield (76.22.90)

3 . Disconnect the electrical connector.

4

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WARNING: Loosen the pipes no more than one full turn to allow the stored air

pressure to vent for a minimum of three seconds.

CAUTION: Using a suitable blanking plug, blank off the end of the air pipe to prevent

dirt ingress.

NOTE:

Make a note of the correct routing of the air pipe.

Release the air pipe.

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