Jaguar XJ (X350). Manual — part 252

•

Is the voltage between 9 and 15 volts?

-> Yes

GO to Pinpoint Test

G531322t12

.

-> No

REPAIR the supply circuit as necessary. This circuit includes fuse 01 of the front power distribution

box. For additional information, refer to the wiring diagrams. Clear the DTC, test the system for

normal operation.

G531322t12 : CHECK THE MODULE IGNITION SUPPLY

1. Key on, engine off. 2. Measure the voltage between:

EC030, harness side

Battery

Ignition supply, pin 08 Negative terminal

•

Is the voltage between 9 and 15 volts?

-> Yes

GO to Pinpoint Test

G531322t13

.

-> No

REPAIR the supply circuit as necessary. This circuit includes fuse 03 of the primary junction box. For

additional information, refer to the wiring diagrams. Clear the DTC, test the system for normal

operation.

G531322t13 : CHECK THE PUMP GROUND

1. Key off. 2. Measure the resistance between:

EC030, harness side

Battery

Pump ground, pin 47 Negative terminal

•

Is the resistance less than 10 ohms?

-> Yes

GO to Pinpoint Test

G531322t14

.

-> No

REPAIR the ground circuit as necessary. For additional information, refer to the wiring diagrams.

Clear the DTC, test the system for normal operation.

G531322t14 : CHECK THE VALVE GROUND

1. Measure the resistance between:

EC030, harness side

Battery

Valve ground, pin 16 Negative terminal

•

Is the resistance less than 10 ohms?

-> Yes

Refer to the warranty policy and procedures manual if a module is suspect.

-> No

REPAIR the ground circuit as necessary. For additional information, refer to the wiring diagrams.

Clear the DTC, test the system for normal operation.

PINPOINT TEST G531322p4 : LEFT
HAND FRONT WHEEL SPEED SENSOR
(WSS)

G531322t15 : CHECK THE WSS RETURN CIRCUIT FOR SHORT CIRCUIT TO
GROUND

1.

Circuit

Pin

WSS signal

01

WSS return 02

www.

2.

Circuit

Pin

Left hand front WSS signal

46

Left hand front WSS return 45

3. Key off. 4. Disconnect the WSS connector, EC044. 5. Disconnect the ABS module connector, EC030.

6. Key on, engine off. 7. Measure the resistance between:

EC044, harness side

Battery

Pin 02

Negative terminal

•

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test

G531322t16

.

-> No

REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear the DTC, test

the system for normal operation by driving the vehicle at more than 20 kph (12.5 mph) for more than

3 minutes.

G531322t16 : CHECK THE WSS RETURN CIRCUIT FOR SHORT CIRCUIT TO
POWER

1. Measure the resistance between:

EC044, harness side

Battery

Pin 02

Positive terminal

•

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test

G531322t17

.

-> No

REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear the DTC, test

the system for normal operation by driving the vehicle at more than 20 kph (12.5 mph) for more than

3 minutes.

G531322t17 : CHECK THE WSS RETURN CIRCUIT FOR HIGH RESISTANCE

1. Measure the resistance between:

EC044, harness side EC030, harness side

Pin 02

Pin 45

•

Is the resistance less than 10 ohms?

-> Yes

GO to Pinpoint Test

G531322t18

.

-> No

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

DTC, test the system for normal operation by driving the vehicle at more than 20 kph (12.5 mph) for

more than 3 minutes.

G531322t18 : CHECK THE WSS SIGNAL CIRCUIT FOR SHORT CIRCUIT TO
POWER

1. Measure the resistance between:

EC044, harness side

Battery

Pin 01

Positive terminal

•

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test

G531322t19

.

www.