Nissan X-Trail 32. Manual - part 1639

PB-82

< DTC/CIRCUIT DIAGNOSIS >

C1BD1 PARKING BRAKE SWITCH

4.

Check the continuity between electric parking brake control module harness connector and parking brake
switch harness connector.

5.

Check the continuity between electric parking brake control module harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts, and GO TO 3.

3.

CHECK PARKING BRAKE SWITCH

Check the parking brake switch. Refer to 

PB-74, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the parking brake switch. Refer to 

PB-156, "Removal and Installation"

.

4.

CHECK CONNECTOR AND TERMINAL

1.

Check the parking brake switch harness connector for disconnection or looseness.

2.

Check the parking brake switch pin terminals for damage or loose connection with harness connector.

3.

Check the electric parking brake control module harness connector for disconnection or looseness.

4.

Check the electric parking brake control module pin terminals for damage or loose connection with har-
ness connector.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts, and GO TO 5.

5.

PERFORM SELF-DIAGNOSIS

With CONSULT

1.

Connect the parking brake switch harness connector.

2.

Connect the electric parking brake control module harness connector.

3.

Turn the ignition switch ON.

4.

Erase self-diagnosis result for “EHS/PKB”.

5.

Repeat the parking brake switch operation (pull and push) five times.

6.

Perform self-diagnosis for “EHS/PKB”.

Is DTC “C1BD1” detected?

YES

>> Replace the electric parking brake control module. Refer to 

PB-153, "Removal and Installation"

.

NO

>> INSPECTION END

Electric parking brake control module

Parking brake switch

Continuity

Connector

Terminal

Connector

Terminal

M137

9

M138

2

Existed

10

1

11

6

18

10

19

4

20

5

Electric parking brake control module

—

Continuity

Connector

Terminal

M137

9

Ground

Not existed

10

11

18

19

20

C1BD1 PARKING BRAKE SWITCH

PB-83

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

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H

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J

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A

B

PB

N

O

P

Component Inspection

INFOID:0000000010722967

1.

CHECK PARKING BRAKE SWITCH

1.

Turn the ignition switch OFF.

2.

Disconnect the parking brake switch harness connector.

3.

Check the continuity when parking brake switch is operated.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the parking brake switch. Refer to 

PB-156, "Removal and Installation"

.

Condition

Terminal

Continuity

When parking brake switch is neutral

1 

−

 6

Existed

4 

−

 5

Existed

2 

−

 5

Not existed

6 

−

 10

Not existed

When parking brake switch is pull

6 

−

 10

Existed

1 

−

 6

Existed

4 

−

 5

Not existed

2 

−

 5

Not existed

When parking brake switch is push

4 

−

 5

Existed

2 

−

 5

Existed

1 

−

 6

Not existed

6 

−

 10

Not existed

PB-84

< DTC/CIRCUIT DIAGNOSIS >

C1BD2 PARKING BRAKE SWITCH

C1BD2 PARKING BRAKE SWITCH

DTC Description

INFOID:0000000010722968

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connector
• Parking brake switch
• Electric parking brake control module

FAIL-SAFE

• Apply and release by switch are prohibited.
• Automatic apply and release are available. 

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1.

Turn the ignition switch OFF to ON.

CAUTION:

Be sure to wait for 10 seconds after turning ignition switch OFF or ON.

2.

Push the parking brake switch.

CAUTION:

• Set the select lever in the P position.
• Depress the brake pedal.

3.

Pull the parking brake switch.

4.

Perform self-diagnosis for “EHS/PKB”.

Is DTC “C1BD2” detected?

YES

>> Proceed to 

PB-84, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010722969

1.

CHECK DATA MONITOR

With CONSULT

1.

Turn the ignition switch ON.

2.

Select “EHS/PKB”, “DATA MONITOR” and “PB SW” according to this order. Check that data monitor dis-
plays when parking brake switch is pull, neutral or push. Refer to 

PB-29, "Reference Value"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK PARKING BRAKE SWITCH CIRCUIT (1)

1.

Turn the ignition switch OFF.

2.

Disconnect the parking brake switch harness connector.

3.

Disconnect the electric parking brake control module harness connector.

DTC

Display Item

(Trouble diagnosis content)

Malfunction detected condition

C1BD2

PARKING BRAKE SWITCH
(Parking brake switch)

When malfunction is detected in the parking brake switch (release side).

C1BD2 PARKING BRAKE SWITCH

PB-85

< DTC/CIRCUIT DIAGNOSIS >

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PB

N

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P

4.

Check the continuity between electric parking brake control module harness connector and parking brake
switch harness connector.

5.

Check the continuity between electric parking brake control module harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts, and GO TO 3.

3.

CHECK PARKING BRAKE SWITCH

Check the parking brake switch. Refer to 

PB-74, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the parking brake switch. Refer to 

PB-156, "Removal and Installation"

.

4.

CHECK CONNECTOR AND TERMINAL

1.

Check the parking brake switch harness connector for disconnection or looseness.

2.

Check the parking brake switch pin terminals for damage or loose connection with harness connector.

3.

Check the electric parking brake control module harness connector for disconnection or looseness.

4.

Check the electric parking brake control module pin terminals for damage or loose connection with har-
ness connector.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts, and GO TO 5.

5.

PERFORM SELF-DIAGNOSIS

With CONSULT

1.

Connect the parking brake switch harness connector.

2.

Connect the electric parking brake control module harness connector.

3.

Turn the ignition switch ON.

4.

Erase self-diagnosis result for “EHS/PKB”.

5.

Repeat the parking brake switch operation (pull and push) five times.

6.

Perform self-diagnosis for “EHS/PKB”.

Is DTC “C1BD2” detected?

YES

>> Replace the electric parking brake control module. Refer to 

PB-153, "Removal and Installation"

.

NO

>> INSPECTION END

Electric parking brake control module

Parking brake switch

Continuity

Connector

Terminal

Connector

Terminal

M137

9

M138

2

Existed

10

1

11

6

18

10

19

4

20

5

Electric parking brake control module

—

Continuity

Connector

Terminal

M137

9

Ground

Not existed

10

11

18

19

20