Jaguar XJ (X350). Manual — part 261

•

Is the resistance greater than 100 Kohms?

-> Yes

An intermittent fault may be present in the wiring harness. Visually check for chaffed wires or other

physical damage to the harness.

-> No

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

the system for normal operation by turning the steering from the center position to full right hand

lock, to full left hand lock and back to the center position before road testing the vehicle on roads

requiring steering input.

PINPOINT TEST G531322p10 : YAW
RATE SENSOR AND ACCELEROMETER

G531322t61 : CHECK THE POWER SUPPLY TO THE YAW RATE SENSOR AND
ACCELEROMETER

1.

Circuit

Pin

CAN negative

01

CAN positive

02

Sensor power

03

Sensor ground 05

2.

Circuit

Pin

CAN negative

19

CAN positive

18

Sensor power

22

Sensor ground 29

3. Key off. 4. Disconnect the yaw rate sensor and accelerometer connector, IP023 5. Key on, engine

off. 6. Measure the resistance between:

IP023, harness side

Battery

Pin 03

Negative terminal

•

Is the voltage greater than 4 volts?

-> Yes

GO to Pinpoint Test

G531322t64

.

-> No

GO to Pinpoint Test

G531322t62

.

G531322t62 : CHECK THE YAW RATE SENSOR AND ACCELEROMETER
POWER SUPPLY CIRCUIT FOR SHORT CIRCUIT TO GROUND

1. Measure the resistance between:

IP023, harness side

Battery

www.

Pin 03

Negative terminal

•

Is the resistance greater than 10 Kohms?

-> Yes

GO to Pinpoint Test

G531322t63

.

-> 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 to a speed greater than 20 Kph (12.5 mph) for

more than 3 seconds.

G531322t63 : CHECK THE YAW RATE SENSOR AND ACCELEROMETER
POWER SUPPLY CIRCUIT FOR HIGH RESISTANCE

1. Key off. 2. Disconnect the ABS module connector, EC030. 3. Measure the resistance between:

IP023, harness side EC030, harness side

Pin 03

Pin 22

•

Is the resistance less than 10 ohms?

-> Yes

An intermittent fault may be present in the wiring harness. Visually check for chaffed wires or other

physical damage to the harness.

-> 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 to a speed greater than 20 Kph (12.5

mph) for more than 3 seconds.

G531322t64 : CHECK THE GROUND CIRCUIT TO THE YAW RATE SENSOR
AND ACCELEROMETER

1. Measure the resistance between:

IP023, harness side

Battery

Pin 05

Negative terminal

•

Is the resistance less than 10 ohms?

-> Yes

GO to Pinpoint Test

G531322t68

.

-> No

GO to Pinpoint Test

G531322t65

.

G531322t65 : CHECK THE YAW RATE SENSOR AND ACCELEROMETER
GROUND CIRCUIT FOR SHORT CIRCUIT TO POWER

1. Measure the resistance between:

IP023, harness side

Battery

Pin 05

Positive terminal

•

Is the resistance greater than 10 Kohms?

-> Yes

GO to Pinpoint Test

G531322t67

.

-> No

GO to Pinpoint Test

G531322t66

.

G531322t66 : CHECK WHETHER THE SHORT CIRCUIT IS IN THE HARNESS
OR THE MODULE

1. Key off. 2. Disconnect the ABS module connector, EC030. 3. Key on, engine off. 4. Measure the

resistance between:

IP023, harness side

Battery

Pin 05

Positive terminal

•

Is the resistance greater than 10 Kohms?

-> Yes

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

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