Nissan X-Trail 32. Manual - part 894

 

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Nissan X-Trail 32. Manual - part 894

 

 

P060A ECM

EC-705

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

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P060A ECM

DTC Description

INFOID:0000000010986408

DTC DETECTION LOGIC

POSSIBLE CAUSE

ECM

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 11 V or more with ignition
switch ON.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start engine and wait at least 10 seconds.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Repeat step 1 and 2 for 5 times.

4.

Turn ignition switch ON.

5.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

EC-705, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010986409

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Erase DTC.

3.

Perform DTC confirmation procedure. Refer to 

EC-705, "DTC Description"

.

Is the 1st trip DTC P060A displayed again?

YES

>> Replace ECM. Refer to 

EC-806, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P060A

CONTROL MODULE
(Internal control module monitoring proces-
sor performance)

ECM internal monitoring processor is malfunctioning.

EC-706

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

P060B ECM

P060B ECM

DTC Description

INFOID:0000000010986410

DTC DETECTION LOGIC

POSSIBLE CAUSE

ECM

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 11 V or more with ignition
switch ON.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON (engine stopped) and wait least 10 seconds.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Turn ignition switch ON.

4.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

EC-706, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010986411

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Erase DTC.

3.

Perform DTC confirmation procedure. Refer to 

EC-706, "DTC Description"

.

Is the 1st trip DTC P060B displayed again?

YES

>> Replace ECM. Refer to 

EC-806, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P060B

CONTROL MODULE
(Internal control module A/D processing 
performance)

ECM internal analog/digital conversion processing system is malfunction-
ing.

P0643 SENSOR POWER SUPPLY

EC-707

< DTC/CIRCUIT DIAGNOSIS >

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P0643 SENSOR POWER SUPPLY

Description

INFOID:0000000010986412

ECM supplies a voltage of 5 V to some of the sensors systematically divided into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simultaneously
in the sensors belonging to the same group as the short-circuited sensor.

Sensor power supply 1

• APP sensor 1
• CKP sensor (POS)
• Intake manifold runner control valve position sensor
• Refrigerant pressure sensor
• TP sensor
NOTE:
If sensor power supply 1 circuit is malfunctioning, DTC P0643 is displayed.

Sensor power supply 2

• APP sensor 2
• CMP sensor (PHASE)
• EVT control position sensor
• EOP sensor
• MAF sensor

DTC Description

INFOID:0000000010986413

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors
- APP sensor 1 circuit is shorted.
- CKP sensor (POS) circuit is shorted.
- Intake manifold runner control valve position sensor circuit is shorted.
- TP sensor circuit is shorted.
- Refrigerant pressure sensor circuit is shorted.
• Accelerator pedal position sensor
• CKP sensor (POS)
• Intake manifold runner control valve position sensor
• Throttle position sensor
• Refrigerant pressure sensor

FAIL-SAFE

ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx.
5 degrees) by the return spring.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0643

SENSOR POWER/CIRC
(Sensor reference voltage 

A

 circuit high)

ECM detects that the voltage of sensor power supply 1 is excessively low 
or high.

EC-708

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

P0643 SENSOR POWER SUPPLY

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start engine and let it idle for 1 second.

2.

Check DTC.

Is DTC detected?

YES

>> Refer to 

EC-708, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010986414

1.

CHECK GROUND CONNECTION

1.

Turn ignition switch OFF.

2.

Check ground connection F6 and F9. Refer to Ground Inspection in 

GI-46, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT

1.

Disconnect accelerator pedal position (APP) sensor harness connector.

2.

Turn ignition switch ON.

3.

Check the voltage between APP sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 3.

3.

CHECK SENSOR POWER SUPPLY CIRCUITS

Check harness for short to power and short to ground, between the following terminals.

Is the inspection result normal?

YES

>> GO TO 4.

NO

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

4.

CHECK COMPONENTS

Check the following.
• Crankshaft position sensor (POS) (Refer to 

EC-678, "Component Inspection (Crankshaft Position sensor)"

.)

• Intake manifold runner control valve position sensor (Refer to 

EC-745, "Diagnosis Procedure"

.)

• Refrigerant pressure sensor (Refer to 

EC-792, "Diagnosis Procedure"

.)

• TP sensor (Refer to 

EC-617, "Component Inspection"

.)

Is the inspection result normal?

YES

>> GO TO 5.

+

-

Voltage

(Approx.)

APP sensor

Connector

Terminal

E110

4

Ground

5 V

ECM

Sensor

Connector

Terminal

Name

Connector

Terminal

F68

72

CKP sensor (POS)

F20

1

80

Electric throttle control actuator

F113

2

84

Intake manifold runner control valve po-
sition sensor

F103

1

E60

104

Refrigerant pressure sensor

F42

3

122

APP sensor

E110

4

 

 

 

 

 

 

 

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