Qashqai J11. Parking brake system - part 5

 

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Qashqai J11. Parking brake system - part 5

 

 

C10E3 PARKING BRAKE SWITCH

PB-65

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

G

H

I

J

K

L

M

A

B

PB

N

O

P

3.

Disconnect the electric parking brake control module harness connector.

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-66, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the parking brake switch. Refer to 

PB-145, "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”.

Electric parking brake control module

Parking brake switch

Continuity

Connector

Terminal

Connector

Terminal

M29

9

M30

2

Existed

8

3

10

1

11

6

18

10

19

4

20

5

Electric parking brake control module

Continuity

Connector

Terminal

M29

9

Ground

Not existed

8

10

11

18

19

20

PB-66

< DTC/CIRCUIT DIAGNOSIS >

C10E3 PARKING BRAKE SWITCH

Is DTC “C10E3” detected?

YES

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

PB-141, "Removal and Installation"

.

NO

>> INSPECTION END

Component Inspection

INFOID:0000000010833657

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-145, "Removal and Installation"

.

Condition

Terminal

Continuity

When parking brake switch is neutral

 6

Existed

 5

Existed

 5

Not existed

 10

Not existed

When parking brake switch is push

 10

Existed

 6

Existed

 5

Not existed

 5

Not existed

When parking brake switch is pull

 5

Existed

 5

Existed

 6

Not existed

 10

Not existed

C10E6 IGNITION SWITCH

PB-67

< DTC/CIRCUIT DIAGNOSIS >

C

D

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H

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L

M

A

B

PB

N

O

P

C10E6 IGNITION SWITCH

DTC Description

INFOID:0000000010833658

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connector
• Electric parking brake control module
• Ignition power supply system

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 “C1BE6” detected?

YES

>> Proceed to 

PB-67, "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:0000000010833659

1.

CHECK ELECTRIC PARKING BRAKE CONTROL MODULE IGNITION POWER SUPPLY

1.

Turn the ignition switch OFF.

2.

Disconnect the electric parking brake control module harness connector.

3.

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

4.

Turn the ignition switch ON.

5.

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

DTC

Display Item

(Trouble diagnosis content)

Malfunction detected condition

C10E6

IGNITION SWITCH
(Ignition switch)

Ignition power supply voltage of electric parking brake control module is as shown below.
• Ignition power supply voltage: 9 V 

 Ignition power supply voltage

• Ignition power supply voltage: 16 V 

 Ignition power supply voltage

Electric parking brake control module

Voltage

Connector

Terminal

M29

22

Ground

Approx. 0 V

PB-68

< DTC/CIRCUIT DIAGNOSIS >

C10E6 IGNITION SWITCH

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK ELECTRIC PARKING BRAKE CONTROL MODULE IGNITION POWER SUPPLY CIRCUIT

1.

Turn the ignition switch OFF.

2.

Check the 10A fuse (#4).

3.

Check the continuity between electric parking brake control module harness connector and fuse block (J/
B).

Is the inspection result normal?

YES

>> Perform trouble diagnosis for ignition power supply.

NO

>> Repair or replace error-detected parts.

3.

CHECK ELECTRIC PARKING BRAKE CONTROL MODULE GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts, and GO TO 4.

4.

CHECK CONNECTOR AND TERMINAL

1.

Turn the ignition switch OFF.

2.

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

3.

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

4.

Disconnect the fuse block (J/B) harness connector.

5.

Check the fuse block (J/B) harness connector for disconnection or looseness.

6.

Check the fuse block (J/B) pin terminals for damage or loose connection with harness 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 electric parking brake control module harness connector.

2.

Connect the fuse block (J/B) 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 “C10E6” detected?

Electric parking brake control module

Voltage

Connector

Terminal

M29

22

Ground

 16 V

Electric parking brake control module

Fuse block (J/B)

Continuity

Connector

Terminal

Connector

Terminal

M29

22

M77

7B

Existed

Electric parking brake control module

Continuity

Connector

Terminal

M29

28

Ground

Existed

30

C10E6 IGNITION SWITCH

PB-69

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

G

H

I

J

K

L

M

A

B

PB

N

O

P

YES

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

PB-141, "Removal and Installation"

.

NO

>> INSPECTION END

PB-70

< DTC/CIRCUIT DIAGNOSIS >

C1BD0 MOTOR

C1BD0 MOTOR

DTC Description

INFOID:0000000010833660

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connector
• Electric parking brake control module

FAIL-SAFE

One side motor is 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 “C1BD0” detected?

YES

>> Proceed to 

PB-70, "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:0000000010833661

1.

CHECK PARKING BRAKE ACTUATOR CIRCUIT

1.

Disconnect the parking brake actuator harness connector.

2.

Disconnect the electric parking brake control module.

3.

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

DTC

Display Item

(Trouble diagnosis content)

Malfunction detected condition

C1BD0

MOTOR
(Motor)

• A short circuit is detected in the circuit between electric parking brake control mod-

ule and parking brake actuator.

• A open circuit is detected in the circuit between electric parking brake control mod-

ule and parking brake actuator.

C1BD0 MOTOR

PB-71

< DTC/CIRCUIT DIAGNOSIS >

C

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J

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L

M

A

B

PB

N

O

P

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts, and GO TO 2.

2.

CHECK ELECTRIC PARKING BRAKE CONTROL MODULE CIRCUIT (1)

1.

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 ACTUATOR CIRCUIT

1.

Check the continuity electric parking brake control module harness connector terminals.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts, and GO TO 4.

4.

CHECK ELECTRIC PARKING BRAKE CONTROL MODULE GROUND CIRCUIT

1.

Disconnect the electric parking brake control module harness connector.

2.

Turn the ignition switch OFF.

3.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

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

5.

CHECK CONNECTOR AND TERMINAL

Electric parking brake control module

Parking brake actuator

Continuity

Connector

Terminal

Connector

Terminal

M29

14

M128

2

Existed

29

1

12

M129

2

27

1

Electric parking brake control module

Continuity

Connector

Terminal

M29

14

Ground

Not existed

29

12

27

Electric parking brake control module

Continuity

Connector

Terminal

M29

14 

 22

Not existed

29 

 22

12 

 22

27 

 22

Electric parking brake control module

Continuity

Connector

Terminal

M29

28

Ground

Existed

30

PB-72

< DTC/CIRCUIT DIAGNOSIS >

C1BD0 MOTOR

1.

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

2.

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

3.

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

4.

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts, and GO TO 6.

6.

PERFORM SELF-DIAGNOSIS

With CONSULT

1.

Connect the electric parking brake control module harness connector.

2.

Connect the parking brake actuator 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 “C1BD0” detected?

YES

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

PB-141, "Removal and Installation"

.

NO

>> INSPECTION END

C1BD1 PARKING BRAKE SWITCH

PB-73

< DTC/CIRCUIT DIAGNOSIS >

C

D

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H

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K

L

M

A

B

PB

N

O

P

C1BD1 PARKING BRAKE SWITCH

DTC Description

INFOID:0000000010833662

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 “C1BD1” detected?

YES

>> Proceed to 

PB-73, "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:0000000010833663

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-23, "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

C1BD1

PARKING BRAKE SWITCH
(Parking brake switch)

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

PB-74

< 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-66, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the parking brake switch. Refer to 

PB-145, "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?

Electric parking brake control module

Parking brake switch

Continuity

Connector

Terminal

Connector

Terminal

M29

9

M30

2

Existed

8

3

10

1

11

6

18

10

19

4

20

5

Electric parking brake control module

Continuity

Connector

Terminal

M29

9

Ground

Not existed

8

10

11

18

19

20

C1BD1 PARKING BRAKE SWITCH

PB-75

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

G

H

I

J

K

L

M

A

B

PB

N

O

P

YES

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

PB-141, "Removal and Installation"

.

NO

>> INSPECTION END

Component Inspection

INFOID:0000000010833664

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-145, "Removal and Installation"

.

Condition

Terminal

Continuity

When parking brake switch is neutral

 6

Existed

 5

Existed

 5

Not existed

 10

Not existed

When parking brake switch is push

 10

Existed

 6

Existed

 5

Not existed

 5

Not existed

When parking brake switch is pull

 5

Existed

 5

Existed

 6

Not existed

 10

Not existed

PB-76

< DTC/CIRCUIT DIAGNOSIS >

C1BD2 PARKING BRAKE SWITCH

C1BD2 PARKING BRAKE SWITCH

DTC Description

INFOID:0000000010833665

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-76, "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:0000000010833666

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-23, "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-77

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

G

H

I

J

K

L

M

A

B

PB

N

O

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-66, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the parking brake switch. Refer to 

PB-145, "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?

Electric parking brake control module

Parking brake switch

Continuity

Connector

Terminal

Connector

Terminal

M29

9

M30

2

Existed

8

3

10

1

11

6

18

10

19

4

20

5

Electric parking brake control module

Continuity

Connector

Terminal

M29

9

Ground

Not existed

8

10

11

18

19

20

PB-78

< DTC/CIRCUIT DIAGNOSIS >

C1BD2 PARKING BRAKE SWITCH

YES

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

PB-141, "Removal and Installation"

.

NO

>> INSPECTION END

Component Inspection

INFOID:0000000010833667

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-145, "Removal and Installation"

.

Condition

Terminal

Continuity

When parking brake switch is neutral

 6

Existed

 5

Existed

 5

Not existed

 10

Not existed

When parking brake switch is push

 10

Existed

 6

Existed

 5

Not existed

 5

Not existed

When parking brake switch is pull

 5

Existed

 5

Existed

 6

Not existed

 10

Not existed

C1BD3 PARKING BRAKE SWITCH

PB-79

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

G

H

I

J

K

L

M

A

B

PB

N

O

P

C1BD3 PARKING BRAKE SWITCH

DTC Description

INFOID:0000000010833668

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:

• Put 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 “C1BD3” detected?

YES

>> Proceed to 

PB-79, "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:0000000010833669

1.

CHECK PARKING BRAKE SWITCH INDICATOR LAMP POWER SUPPLY

1.

Turn the ignition switch OFF.

2.

Disconnect the parking brake switch harness connector.

3.

Check the voltage between parking brake switch harness connector and ground.

4.

Turn the ignition switch ON.

5.

Check the voltage between parking brake switch harness connector and ground.

DTC

Display Item

(Trouble diagnosis content)

Malfunction detected condition

C1BD3

PARKING BRAKE SWITCH
(Parking brake switch)

Parking brake switch indicator lamp does not illuminate when the parking brake is ap-
ply status (parking brake switch is apply).

Parking brake switch

Voltage

Connector

Terminal

M30

7

Ground

 16

PB-80

< DTC/CIRCUIT DIAGNOSIS >

C1BD3 PARKING BRAKE SWITCH

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK ELECTRIC PARKING BRAKE CONTROL MODULE IGNITION POWER SUPPLY CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the fuse block (J/B) harness connector.

3.

Check the 10A fuse (#28).

4.

Check the continuity between parking brake switch harness connector and fuse block (J/B).

Is the inspection result normal?

YES

>> Perform trouble diagnosis for ignition power supply.

NO

>> Repair or replace error-detected parts.

3.

CHECK PARKING BRAKE SWITCH CIRCUIT (1)

1.

Turn the ignition switch OFF.

2.

Disconnect the electric parking brake control module harness connector.

3.

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

4.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts, and GO TO 4.

4.

CHECK PARKING BRAKE SWITCH

Check the parking brake switch. Refer to 

PB-66, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace the parking brake switch. Refer to 

PB-145, "Removal and Installation"

.

5.

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.

5.

Check the fuse block (J/B) harness connector for disconnection or looseness.

6.

Check the fuse block (J/B) pin terminals for damage or loose connection with harness connector.

Parking brake switch

Voltage

Connector

Terminal

M30

7

Ground

 16

Parking brake switch

Fuse block (J/B)

Continuity

Connector

Terminal

Connector

Terminal

M30

7

M76

15C

Existed

Electric parking brake control module

Parking brake switch

Continuity

Connector

Terminal

Connector

Terminal

M29

8

M30

3

Existed

Electric parking brake control module

Continuity

Connector

Terminal

M29

8

Ground

Not existed

 

 

 

 

 

 

 

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