Nissan X-Trail 32. Manual - part 910

P2138 APP SENSOR

EC-769

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

YES

>> INSPECTION END

NO

>> Replace accelerator pedal assembly. Refer to 

ACC-4, "Removal and Installation"

.

E C -7 7 0

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

BRAKE PEDAL POSITION SWITCH

BRAKE PEDAL POSITION SWITCH

Component Function Check

INFOID:0000000010986477

1.

CHECK BRAKE PEDAL POSITION SWITCH FUNCTION

 With CONSULT

1.

Turn ignition switch ON.

2.

Select “BRAKE SW1” in “DATA MONITOR” mode with CONSULT.

3.

Check “BRAKE SW1” indication as per the following conditions.

 Without CONSULT

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-770, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010986478

1.

CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect brake pedal position switch harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between brake pedal position switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect fuse block (J/B) harness connector.

3.

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

Monitor item

Condition

Indication

BRAKE SW1

Brake pedal

Slightly depressed

OFF

Fully released

ON

ECM

Condition

Voltage

Connector

+

–

Terminal

E60

116

128

Brake pedal

Slightly depressed

Approx. 0 V

Fully released

Battery voltage

+

-

Voltage

Brake pedal position switch

Connector

Terminal

E112

1

Ground

Battery voltage

+

+

Continuity

Brake pedal position switch

Fuse block (J/B)

Connector

Terminal

Connector

Terminal

E112

1

M2

16B

Existed

BRAKE PEDAL POSITION SWITCH

EC-771

< DTC/CIRCUIT DIAGNOSIS >

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Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between brake pedal position switch harness connector and ECM harness connec-
tor.

4.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair open circuit, short to ground or short to power in harness or connectors.

4.

CHECK BRAKE PEDAL POSITION SWITCH

Check brake pedal position switch. Refer to 

EC-771, "Component Inspection (Brake Pedal Position Switch)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

NO

>> Replace brake pedal position switch. Refer to 

BR-21, "Exploded View"

.

Component Inspection (Brake Pedal Position Switch)

INFOID:0000000010986479

1.

CHECK BRAKE PEDAL POSITION SWITCH-1

1.

Turn ignition switch OFF.

2.

Disconnect brake pedal position harness connector.

3.

Check the continuity between brake pedal position switch terminals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK BRAKE PEDAL POSITION SWITCH-2

1.

Adjust brake pedal position switch installation. Refer to 

BR-22, "Inspection and Adjustment"

.

2.

Check the continuity between brake pedal position switch terminals as per the following conditions.

Is the inspection result normal?

+

+

Continuity

Brake pedal position switch

ECM

Connector

Terminal

Connector

Terminal

E112

2

E60

116

Existed

Brake pedal position switch

Condition

Continuity

+

−

Terminals

1

 2

Brake pedal

Fully released

Existed

Slightly de-
pressed

Not existed

Brake pedal position switch

Condition

Continuity

+

−

Terminals

1

 2

Brake pedal

Fully released

Existed

Slightly de-
pressed

Not existed

EC-772

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

BRAKE PEDAL POSITION SWITCH

YES

>> INSPECTION END

NO

>> Replace brake pedal position switch. Refer to 

BR-21, "Exploded View"

.