Jaguar XJ (X350). Manual — part 208

•

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.

G531320t10 : 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 apply 2 - signal - Pin 02 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.

G531320t11 : 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 G531320p2 :
SECONDARY APPLY SWITCH CIRCUIT
VOLTAGE OUT OF RANGE

G531320t12 : CHECK THE SECONDARY SWITCH CIRCUIT RESISTANCE

1. Key off. 2.

Electric parking brake module connector 2 (CR32) disconnected. 3. Key on, engine off. 4. Measure the

resistance between:

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CR32 connector, harness side

CR32 connector, harness side

Electric parking brake switch apply 2 - signal - Pin

02

Electric parking brake switch - switch return - Pin

06

•

Is the resistance between 595 ohms - 611 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 fault - EPB module connector, CR32

-> No

INSTALL a new EPB switch.

Parking Brake Switch (70.35.46)

PINPOINT TEST G531320p4 :
SECONDARY RELEASE SWITCH
CIRCUIT VOLTAGE OUT OF RANGE

G531320t21 : CHECK THE SECONDARY SWITCH CIRCUIT RESISTANCE

1. Key off. 2.

Electric parking brake connector 2 (CR32) disconnected. 3. Key on, engine off. 4. Measure the

resistance between:

CR32 connector, harness side

CR32 connector, harness side

Electric parking brake switch release 2 - signal - Pin

14

Electric parking brake switch - switch return - Pin

06

•

Is the resistance between 595 ohms - 611 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

INSTALL a new EPB switch.

Parking Brake Switch (70.35.46)

PINPOINT TEST G531320p5 :
SECONDARY APPLY SWITCH CIRCUIT
SHORT CIRCUIT TO GROUND

G531320t22 : CHECK THE SECONDARY APPLY SIGNAL CIRCUIT FOR SHORT
CIRCUIT TO GROUND

1. Key off. 2.

Electric parking brake connector 2 (CR32) disconnected. 3. Key on, engine off. 4. Measure the

resistance between:

CR32 connector, harness side

Vehicle battery

Electric parking brake switch apply 2 - signal - Pin 02 Negative terminal

•

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

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

-> No

GO to Pinpoint Test

G531320t23

.

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