Jaguar XJ (X350). Manual — part 207

GO to Pinpoint Test

G531320t8

.

G531320t2 : CHECK THE PRIMARY RELEASE SIGNAL CIRCUIT FOR SHORT
CIRCUIT TO POWER

1. Measure the resistance between:

CR50 connector, harness side

Vehicle battery

Electric parking brake switch apply 1 - signal - Pin 11 Positive terminal

•

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test

G531320t3

.

-> No

GO to Pinpoint Test

G531320t9

.

G531320t3 : CHECK THE SECONDARY APPLY SIGNAL CIRCUIT FOR SHORT
CIRCUIT TO POWER

1. 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

GO to Pinpoint Test

G531320t4

.

-> No

GO to Pinpoint Test

G531320t10

.

G531320t4 : CHECK THE SECONDARY RELEASE SIGNAL CIRCUIT FOR SHORT
CIRCUIT TO POWER

1. 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

GO to Pinpoint Test

G531320t5

.

-> No

GO to Pinpoint Test

G531320t11

.

G531320t5 : CHECK THE PRIMARY APPLY SIGNAL CIRCUIT FOR OPEN
CIRCUIT

1.

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

CR50 connector, harness side

TL82 connector, harness side

Electric parking brake switch apply 1 - signal - Pin

10

Electric parking brake switch apply 1 - signal - Pin

08

•

Is the resistance less than 10 ohms?

-> Yes

GO to Pinpoint Test

G531320t6

.

-> No

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

www.

G531320t6 : CHECK THE SWITCH RETURN CIRCUIT FOR OPEN CIRCUIT

1. Measure the resistance between:

CR32 connector, harness side

TL82 connector, harness side

Electric parking brake switch - switch return - Pin

06

Electric parking brake switch - switch return - Pin

06

•

Is the resistance less than 10 ohms?

-> Yes

GO to Pinpoint Test

G531320t7

.

-> No

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

G531320t7 : CHECK THE ELECTRIC PARKING BRAKE SWITCH

1. Measure the resistance between:

TL82 connector, component side

TL82 connector, component side

Electric parking brake switch apply 1 - signal - Pin

08

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, CR50 - EPB module connector, CR32

-> No

INSTALL a new EPB switch.

Parking Brake Switch (70.35.46)

G531320t8 : 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:

CR50 connector, harness side

Vehicle battery

Electric parking brake switch apply 1 - signal - Pin 10 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.

G531320t9 : 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:

CR50 connector, harness side

Vehicle battery

Electric parking brake switch release 1 - signal - Pin 11 Positive terminal

www.