Jaguar XJ (X350). Manual — part 203

G295394t7 : CHECK THE EPB CONTROL MODULE TO SWITCHPACK CIRCUITS
FOR SHORT TO GROUND

1. Reconnect the battery negative terminal. 2. Measure the resistance between TL82, pin 08 (WU)

and GROUND. 3. Measure the resistance between TL82, pin 04 (RW) and GROUND.

•

Is either 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

Contact dealer technical support for advice on possible EPB control module failure.

PINPOINT TEST G295394p3 : DTC
C1989; PARK BRAKE APPLY AND
RELEASE SWITCH CONTACTS
ENERGIZED SIMULTANEOUSLY

G295394t8 : CHECK PARK BRAKE APPLY SWITCH FUNCTION

1. Disconnect the EPB switchpack electrical connector, TL82. 2. Connect an ohmmeter between pins

06 and 08 of the switch. 3. Operate the switch to the Apply position.

•

Does the ohmmeter switch between open and closed circuit as the switch is operated?

-> Yes

GO to Pinpoint Test

G295394t9

.

-> No

INSTALL a new switchpack.

Parking Brake Switch (70.35.46)

CLEAR the DTC. TEST the system for normal operation.

G295394t9 : CHECK PARK BRAKE RELEASE SWITCH FUNCTION

1. Connect an ohmmeter between pins 04 and 06 of the switch. 2. Operate the switch to the Release

position.

•

Does the ohmmeter switch between open and closed circuit as the switch is operated?

-> Yes

GO to Pinpoint Test

G295394t10

.

-> No

INSTALL a new switchpack.

Parking Brake Switch (70.35.46)

CLEAR the DTC. TEST the system for normal operation.

G295394t10 : CHECK THE PARK BRAKE SWITCH FOR SHORT CIRCUIT

1. Connect an ohmmeter between pins 04 and 08 of the switch.

•

Is the resistance less than 10,000 ohms?

-> Yes

INSTALL a new switchpack.

Parking Brake Switch (70.35.46)

CLEAR the DTC. TEST the system for normal operation.

-> No

Recheck DTCs. Contact dealer technical support for advice on possible EPB control module failure.

PINPOINT TEST G295394p4 : DTC
C1784, C1785, C1786; EPB MOTOR
OUTPUT OPEN/SHORT CIRCUIT

G295394t11 : CHECK THE EPB MOTOR + CIRCUIT FOR OPEN CIRCUIT

1. Disconnect the battery negative terminal. 2. Disconnect the EPB motor electrical connector, CV07.

3. Disconnect the EPB control module electrical connector, CR50. 4. Measure the resistance between

CV07, pin 01 (RW) and CR50, pin 03 (RW).

•

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

G295394t12

.

G295394t12 : CHECK THE EPB MOTOR - CIRCUIT FOR OPEN CIRCUIT

1. Measure the resistance between CV07, pin 06 (GW) and CR50, pin 02 (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.

www.

-> No

GO to Pinpoint Test

G295394t13

.

G295394t13 : CHECK THE EPB MOTOR + CIRCUIT FOR SHORT TO GROUND

1. Reconnect the battery negative terminal. 2. Measure the resistance between CV07, pin 01 (RW)

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

G295394t14

.

G295394t14 : CHECK THE EPB MOTOR - CIRCUIT FOR SHORT TO GROUND

1. Measure the resistance between CV07, pin 06 (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

G295394t15

.

G295394t15 : CHECK THE EPB MOTOR + AND - FOR SHORT CIRCUIT TO
EACH OTHER

1. Measure the resistance between CV07, pins 06 (GW) and 01 (RW).

•

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

G295394t16

.

G295394t16 : CHECK THE EPB MOTOR FOR OPEN CIRCUIT

1. Check for continuity between pins 01 and 06 of the motor.

•

Is the circuit continuous?

-> Yes

Contact dealer technical support for advice on possible EPB control module failure.

-> No

INSTALL a new EPB motor.

Parking Brake Release Actuator - VIN Range: G00001->G03445 (70.35.45)

CLEAR the DTC. TEST the

system for normal operation.

PINPOINT TEST G295394p5 : DTC
C1799; HALL EFFECT SENSOR
FAILURE

G295394t17 : CHECK THE HALL EFFECT SENSOR POWER SUPPLY

1. Disconnect the EPB motor electrical connector, CV07. 2. Measure the voltage between CV07, pin

03 (Y) and GROUND.

•

Is the voltage less than 3 volts?

-> Yes

GO to Pinpoint Test

G295394t18

.

-> No

GO to Pinpoint Test

G295394t19

.

G295394t18 : CHECK THE HALL EFFECT SENSOR POWER SUPPLY CIRCUIT
FOR HIGH RESISTANCE

1. Disconnect the battery negative terminal. 2. Disconnect the EPB control module electrical

connector, CR32. 3. Measure the resistance between CV07, pin 03 (Y) and CR32, pin 10 (Y).

•

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

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