Jaguar XJ (X350). Manual — part 219

Electric parking brake actuator - positive - Pin 14 Electric parking brake actuator - negative - Pin 07

•

Is the resistance between 0.5 ohms - 1 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

-> No

GO to Pinpoint Test

G531320t103

.

G531320t103 : CHECK THE ACTUATOR SIGNAL CIRCUIT FOR OPEN CIRCUIT

1.

EPB actuator connector disconnected. 2. Measure the resistance between:

CR50 connector, harness side

EPB actuator connector, harness side

Electric parking brake actuator - positive - Pin 14 Electric parking brake actuator - positive - Pin 01

•

Is the resistance less than 10 ohms?

-> Yes

GO to Pinpoint Test

G531320t104

.

-> No

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

G531320t104 : CHECK THE ACTUATOR RETURN CIRCUIT FOR OPEN CIRCUIT

1. Measure the resistance between:

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CR50 connector, harness side

EPB actuator connector, harness side

Electric parking brake actuator - negative - Pin 07 Electric parking brake actuator - negative - Pin 06

•

Is the resistance less than 10 ohms?

-> Yes

GO to Pinpoint Test

G531320t105

.

-> No

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

G531320t105 : CHECK THE ACTUATOR CIRCUIT RESISTANCE

1. Measure the resistance between:

EPB actuator connector, component side

EPB actuator connector, component side

Electric parking brake actuator - positive - Pin 01 Electric parking brake actuator - negative - Pin 06

•

Is the resistance between 0.5 ohms - 1 ohm?

-> Yes

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

-> No

INSTALL a new EPB actuator.

Parking Brake Release Actuator - VIN Range: G03446->H99999 (70.35.45)

PINPOINT TEST G531320p29 :
PRIMARY PARKING BRAKE RELEASE
SWITCH CIRCUIT FAULT

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G531320t134 : CHECK THE PRIMARY RELEASE SWITCH SIGNAL CIRCUIT
FOR SHORT CIRCUIT TO POWER

1. Key off. 2.

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

Electric parking brake module connector 2 (CR32) disconnected. 4. Key on, engine off. 5. Measure the

resistance between:

CR50 connector, harness side

Vehicle battery

Primary release switch signal 1 - pin 11 Positive terminal

•

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test

G531320t135

.

-> No

GO to Pinpoint Test

G531320t141

.

G531320t135 : CHECK THE PRIMARY APPLY SWITCH SIGNAL CIRCUIT FOR
SHORT CIRCUIT TO POWER

1. Measure the resistance between:

CR50 connector, harness side

Vehicle battery

Primary apply switch signal 1 - pin 10 Positive terminal

•

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test

G531320t136

.

-> No

GO to Pinpoint Test

G531320t142

.

G531320t136 : CHECK THE SECONDARY APPLY SWITCH SIGNAL CIRCUIT
FOR SHORT CIRCUIT TO POWER

1. Measure the resistance between:

CR32 connector, harness side

Vehicle battery

Secondary apply switch signal 2 - pin 02 Positive terminal

•

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test

G531320t137

.

-> No

GO to Pinpoint Test

G531320t143

.

G531320t137 : CHECK THE SECONDARY RELEASE SWITCH SIGNAL CIRCUIT
FOR SHORT CIRCUIT TO POWER

1. Measure the resistance between:

CR32 connector, harness side

Vehicle battery

Secondary release switch signal 2 - pin 14 Positive terminal

•

Is the resistance greater than 100 Kohms?

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