Jaguar XJ (X350). Manual — part 217

G531320t89 : CHECK IF THE SHORT CIRCUIT IS IN THE HARNESS OR THE
SWITCH

1.

Electric parking brake switch (TL82) connector disconnected. 2. Measure the resistance between:

CR32 connector, harness side

Vehicle battery

Electric parking brake switch release 2 - signal - Pin 14 Positive terminal

•

Is the resistance greater than 100 Kohms?

-> Yes

INSTALL a new EPB switch.

Parking Brake Switch (70.35.46)

-> No

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

PINPOINT TEST G531320p19 :
ACTUATOR DOES NOT FULLY
RELEASE

G531320t90 : CHECK THE HIGH CURRENT GROUND CIRCUIT FOR AN OPEN
CIRCUIT IN THE HARNESS

1. Key off. 2.

Electric parking brake connector 2 (CR32) disconnected. 3. Measure the resistance between:

CR32 connector, harness side

Vehicle battery

Electric parking brake module - ground - Pin 13 Negative terminal

•

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. If no fault is found in the circuit, suspect the following

component(s): - EPB module - EPB module connector, CR32

-> No

REPAIR the open circuit. For additional information, refer to the wiring diagrams.

PINPOINT TEST G531320p20 :
SECONDARY RELEASE SWITCH
CIRCUIT SHORT CIRCUIT TO
GROUND

G531320t91 : CHECK THE SECONDARY RELEASE SIGNAL CIRCUIT FOR
SHORT CIRCUIT TO GROUND

1. Key off. 2.

Electric parking brake connector 1 (CR50) disconnected. 3. Key on, engine off. 4. Measure the

resistance between:

CR32 connector, harness side

Vehicle battery

Electric parking brake switch release 2 - signal - Pin 14 Negative terminal

•

Is the resistance greater than 100 Kohms?

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-> Yes

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

physical damage to the harness. If no fault is found in the circuit, suspect the following

component(s): - EPB module - EPB module connector, CR32

-> No

GO to Pinpoint Test

G531320t92

.

G531320t92 : CHECK IF THE SHORT CIRCUIT IS IN THE HARNESS OR THE
SWITCH

1.

Electric parking brake switch connector (TL82) disconnected. 2. Measure the resistance between:

CR32 connector, harness side

Vehicle battery

Electric parking brake switch release 2 - signal - Pin 14 Negative terminal

•

Is the resistance greater than 100 Kohms?

-> Yes

INSTALL a new EPB switch.

Parking Brake Switch (70.35.46)

-> No

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

PINPOINT TEST G531320p21 : APPLY
AND RELEASE SWITCH CONTACTS
ENERGIZED SIMULTANEOUSLY

G531320t93 : CHECK THE PRIMARY EPB APPLY AND RELEASE CIRCUIT FOR
SHORT CIRCUIT FAULTS

1. Key off. 2.

Electric parking brake connector 1 (CR50) disconnected. 3.

Electric parking brake connector 2 (CR32) disconnected. 4. Make sure the parking brake switch is not

in the apply or release position. 5. Measure the resistance between:

CR50 connector, harness side

CR50 connector, harness side

Electric parking brake switch apply 1 - signal - Pin

10

Electric parking brake switch release 1 - signal - Pin

11

•

Is the resistance between 1.19 Kohms - 1.222 Kohms?

-> Yes

GO to Pinpoint Test

G531320t94

.

-> No

GO to Pinpoint Test

G531320t95

.

G531320t94 : CHECK THE SECONDARY EPB APPLY AND RELEASE CIRCUIT
FOR SHORT CIRCUIT FAULTS

1. Make sure the parking brake switch is not in the apply or release position. 2. Measure the

resistance between:

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