Nissan Qashqai J11. Manual - part 2135

AV

U1972 EPS

AV-229

< DTC/CIRCUIT DIAGNOSIS >

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U1972 EPS

DTC Logic

INFOID:0000000010944760

DTC DETECTION LOGIC

POSSIBLE CAUSE

EPS control unit

FAIL-SAFE

Around view monitor with Park Assist

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

WITH CONSULT

1.

Perform “All DTC Reading” with CONSULT. 

2.

Check if the “U1972” is detected as the current malfunction in “Self Diagnostic Result” of “AVM”. 

“U1972” detected as the current malfunction?

YES

>> Refer to 

AV-229, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-41, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010944761

1.

CHECK SELF-DIAGNOSIS RESULTS

With CONSULT.

Check if the “U1000” is detected other than “U1972” in “Self Diagnostic Result” of “AVM”. 

Is “U1000” detected?

YES

>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.

Refer to 

AV-189, "AROUND VIEW MONITOR CONTROL UNIT : Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

CHECK SELF-DIAGNOSIS RESULTS

With CONSULT.

Check if any DTC is detected in “Self Diagnostic Result” of “EPS/DAST3”.

Is any DTC detected?

YES

>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to

STC-19, "DTC Index"

.

NO

>> Replace the around view monitor control unit. Refer to 

AV-267, "Removal and Installation"

. 

DTC

Trouble diagnosis

(Trouble diagnosis contents)

Detecting condition

U1972

EPS Message Counter
(Electronically controlled power 
steering message counter)

Around view monitor control unit receives an incorrect signal from EPS control 
unit via CAN communication

AV-230

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

AV CONTROL UNIT

AV CONTROL UNIT : Diagnosis Procedure

INFOID:0000000010435728

Regarding Wiring Diagram information, refer to 

AV-159, "Wiring Diagram"

.

1.

CHECK FUSE

Check that the following fuses are not blown.

Are the fuses blown?

YES

>> Replace the blown fuse after repairing the affected circuit.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit connectors M48 and M49.

3.

Check voltage between AV control unit connectors M48 and M49 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between AV control unit connector M49 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

AROUND VIEW MONITOR CONTROL UNIT

AROUND VIEW MONITOR CONTROL UNIT : Diagnosis Procedure

INFOID:0000000010435729

Regarding Wiring Diagram information, refer to 

AV-159, "Wiring Diagram"

.

WITHOUT DRIVER ASSISTANCE SYSTEM

1.

CHECK FUSE

Check that the following fuses are not blown.

Terminal No.

Signal name

Fuse No.

19

Battery power supply

19 (20A)

40

Ignition power supply

4 (10A)

AV control unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M48

19

—

Ignition switch: OFF

Battery voltage

M49

40

Ignition switch: ON

AV control unit

Ground

Continuity 

Connector

Terminal

M49

20

—

Yes

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-231

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Are the fuses blown?

YES

>> Replace the blown fuse after repairing the affected circuit.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect around view monitor control unit connector M95.

3.

Check voltage between around view monitor control unit connector M95 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between around view monitor control unit connector M95 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

WITH DRIVER ASSISTANCE SYSTEM

1.

CHECK FUSE

Check that the following fuses are not blown.

Are the fuses blown?

YES

>> Replace the blown fuse after repairing the affected circuit.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect around view monitor control unit connector M7.

3.

Check voltage between around view monitor control unit connector M7 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK GROUND CIRCUIT

Terminal No.

Signal name

Fuse No.

2

Battery power supply

19 (20A)

Around view monitor control unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M95

2

—

Ignition switch: OFF

Battery voltage

Around view monitor control unit

Ground

Continuity 

Connector

Terminal

M95

1

—

Yes

Terminal No.

Signal name

Fuse No.

2

Battery power supply

19 (20A)

Around view monitor control unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M7

2

—

Ignition switch: OFF

Battery voltage

AV-232

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

POWER SUPPLY AND GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between around view monitor control unit connector M7 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

Around view monitor control unit

Ground

Continuity 

Connector

Terminal

M7

1

—

Yes