Nissan Qashqai (2007-2010). Manual - part 412

P2138 APP SENSOR

EC-1167

< COMPONENT DIAGNOSIS >

[MR20DE (WITHOUT EURO-OBD)]

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2.

Turn ignition switch ON.

3.

Check the voltage between ECM harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE ACCELERATOR PEDAL ASSEMBLY

1.

Replace accelerator pedal assembly.

2.

Go to 

EC-1171, "Special Repair Requirement"

.

>> INSPECTION END

Special Repair Requirement

INFOID:0000000001094283

1.

PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING

Refer to 

EC-647, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Require-

ment"

.

>> GO TO 2.

2.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Refer to 

EC-647, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"

.

>> GO TO 3.

3.

PERFORM IDLE AIR VOLUME LEARNING

Refer to 

EC-647, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"

.

>> END

ECM

Ground

Condition

Voltage

Connector

Terminal

E110

110

(APP sensor 1 signal)

Ground

Accelerator pedal

Fully released

0.6 - 0.9V

Fully depressed

3.9 - 4.7V

103

(APP sensor 2 signal)

Fully released

0.3 - 0.6V

Fully depressed

1.95 - 2.4V

EC-1168

< COMPONENT DIAGNOSIS >

[MR20DE (WITHOUT EURO-OBD)]

ASCD BRAKE SWITCH

ASCD BRAKE SWITCH

Description

INFOID:0000000001094284

When the brake pedal is depressed, ASCD brake switch is turned OFF and stop lamp switch is turned ON.
ECM detects the state of the brake pedal by this input of two kinds (ON/OFF signal).
Refer to 

EC-677, "System Description"

 for the ASCD function.

Component Function Check

INFOID:0000000001094285

1.

CHECK FOR ASCD BRAKE SWITCH FUNCTION

 With CONSULT-III

1.

Turn ignition switch ON.

2.

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

3.

Check “BRAKE SW1” indication under the following conditions.

 Without CONSULT-III

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Go to 

EC-1172, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001094286

1.

CHECK OVERALL FUNCTION-I

Check which type of transmission the vehicle is equipped with.

Is the inspection result normal?

CVT

>> GO TO 2.

M/T

>> GO TO 6.

2.

CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ASCD brake switch harness connector.

3.

Turn ignition switch ON.

4.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

DETECT MALFUNCTIONING PART

Check the following.

Monitor item

Condition

Indication

BRAKE SW1

Brake pedal (CVT)
Brake pedal and clutch pedal (M/T)

Slightly depressed

OFF

Fully released

ON

ECM

Ground

Condition

Voltage

Connector

Terminal

E16

100

(ASCD brake switch signal)

Ground

Brake pedal (CVT)
Brake pedal and clutch pedal (M/T)

Slightly depressed

Approx. 0V

Fully released

Battery voltage

ASCD brake switch

Ground

Voltage

Connector

Terminal

E112

1

Ground

Battery voltage

ASCD BRAKE SWITCH

EC-1169

< COMPONENT DIAGNOSIS >

[MR20DE (WITHOUT EURO-OBD)]

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• Junction block connector M77, E105
• 10A fuse (No. 4)
• Harness for open or short between ASCD brake switch and fuse

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

4.

CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between ASCD brake switch harness connector and ECM harness connector.

4.

Also check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 5.

NO

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

5.

CHECK ASCD BRAKE SWITCH

Refer to 

EC-1174, "Component Inspection (ASCD Brake Switch)"

.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> Replace ASCD brake switch.

6.

CHECK ASCD BRAKE SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ASCD brake switch harness connector.

3.

Turn ignition switch ON.

4.

Check the continuity between ASCD brake switch harness connector and ground.

5.

Also check harness for short to ground and short to power.

Is the inspection result normal?

YES 

>> GO TO 11.

NO

>> GO TO 7.

7.

CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ASCD clutch switch harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between ASCD clutch switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> GO TO 8.

8.

DETECT MALFUNCTIONING PART

ASCD brake switch

ECM

Continuity

Connector

Terminal

Connector

Terminal

E112

2

E16

100

Existed

ASCD brake switch

Ground

Condition

Voltage (V)

Connector

Terminal

E112

1

Ground

Clutch pedal

Slightly depressed

Approx. 0

Fully released

Battery voltage

ASCD clutch switch

Ground

Voltage

Connector

Terminal

E111

1

Ground

Battery voltage

EC-1170

< COMPONENT DIAGNOSIS >

[MR20DE (WITHOUT EURO-OBD)]

ASCD BRAKE SWITCH

Check the following.
• Junction block connector M77,E105
• 10A fuse (No. 4)
• Harness for open or short between ASCD brake switch and fuse

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

9.

CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Check the continuity between ASCD brake switch harness connector and ASCD clutch switch harness
connector.

3.

Also check harness for short to ground and short to power.

Is the inspection result normal?

YES 

>> GO TO 10.

NO

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

10.

CHECK ASCD CLUTCH SWITCH

Refer to 

EC-888, "Component Inspection (ASCD Clutch Switch)"

.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> Replace ASCD clutch switch.

11.

CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector

3.

Check the continuity between ASCD brake switch harness connector and ECM harness connector.

4.

Also check harness for short to ground and short to power.

Is the inspection result normal?

YES 

>> GO TO 12.

NO

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

12.

CHECK ASCD BRAKE SWITCH

Refer to 

EC-888, "Component Inspection (ASCD Brake Switch)"

.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> Replace ASCD brake switch.

13.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection (ASCD Brake Switch)

INFOID:0000000001094287

1.

CHECK ASCD BRAKE SWITCH-I

1.

Turn ignition switch OFF.

2.

Disconnect ASCD brake switch harness connector.

ASCD brake switch

ASCD clutch switch

Continuity

Connector

Terminal

Connector

Terminal

E112

1

E111

2

Existed

ASCD brake switch

ECM

Continuity

Connector

Terminal

Connector

Terminal

E112

2

E16

100

Existed