Nissan Rogue. Manual - part 1147

STC-18

< WIRING DIAGRAM >

EPS SYSTEM

AAGIA0182GB

DIAGNOSIS AND REPAIR WORKFLOW

STC-19

< BASIC INSPECTION >

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000011279649

DETAILED FLOW

1.

COLLECT THE INFORMATION FROM THE CUSTOMER

Get the detailed information from the customer about the symptom (the condition and the environment when

the incident/malfunction occurred) using the diagnosis worksheet.

>> GO TO 2.

2.

PERFORM THE SELF-DIAGNOSIS

Check the DTC display with the “Self Diagnostic Result”. Refer to 

STC-9, "CONSULT Function"

.

Is there any DTC displayed?

YES

>> Record or print DTC and freeze frame data (FFD). GO TO 3.

NO

>> GO TO 4.

3.

PERFORM THE SYSTEM DIAGNOSIS

Perform the diagnosis applicable to the displayed DTC. Refer to 

STC-13, "DTC Index"

.

>> GO TO 6.

4.

CHECK THE WARNING LAMP FOR ILLUMINATION

Check that the warning lamp illuminate.
Is ON/OFF timing normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

5.

PERFORM THE DIAGNOSIS BY SYMPTOM

Perform the diagnosis applicable to the symptom. 

>> GO TO 6.

6.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the specified malfunctioning parts.

>> GO TO 7.

7.

FINAL CHECK

Perform the “Self Diagnostic Result” again, and check that the malfunction is repaired completely. After check-

ing, erase the “Self Diagnostic Result”. Refer to 

STC-9, "CONSULT Function"

.

Is no other DTC present and the repair completed?

YES

>> Inspection End.

NO

>> GO TO 3.

STC-20

< DTC/CIRCUIT DIAGNOSIS >

C1601 BATTERY POWER SUPPLY

DTC/CIRCUIT DIAGNOSIS

C1601 BATTERY POWER SUPPLY

DTC Logic

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DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and

wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

DTC REPRODUCTION PROCEDURE

With CONSULT

1. Turn the ignition switch OFF to ON.

2. Perform “Self Diagnostic Result” of “EPS”.
Is DTC “C1601” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

STC-20, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000011279651

Regarding Wiring Diagram information, refer to 

STC-14, "Wiring Diagram"

.

1.

CHECK EPS CONTROL UNIT GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect EPS control unit harness connector.

3. Check continuity between EPS control unit harness connector terminal and ground.

4. Connect EPS control unit harness connector.
Is the inspection result normal?

YES

>> GO TO 2.

NO

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

2.

CHECK EPS CONTROL UNIT POWER SUPPLY CIRCUIT (1)

1. Check voltage between EPS control unit harness connector terminals and ground.

DTC

Display item

Malfunction detected condition

Possible cause

C1601

BATTERY VOLT

When a power supply voltage to the EPS control unit 
is maintained at 18.2 V or more or at less than 9 V 
continuously for five second or more.

• Harness or connector
• EPS control unit
• Fuse
• Power supply system
• Battery

EPS control unit

—

Continuity

Connector

Terminal

M48

10

Ground

Yes

C1601 BATTERY POWER SUPPLY

STC-21

< DTC/CIRCUIT DIAGNOSIS >

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2. Turn ignition switch ON.

CAUTION:

Never start the engine.

3. Check voltage between EPS control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK EPS CONTROL UNIT POWER SUPPLY CIRCUIT (2)

1. Turn ignition switch OFF.

2. Check the 10A fuse 30.

3. Check the harness for open or short between EPS control unit harness connector terminal 4 and the 10A

fuse 30.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for ignition power supply circuit. Refer to 

PG-13, "Wiring Diagram

— Battery Power Supply —"

.

NO

>> Repair or replace malfunctioning parts.

4.

CHECK EPS CONTROL UNIT POWER SUPPLY CIRCUIT (3)

1. Turn ignition switch OFF.

2. Check voltage between EPS control unit harness connector and ground.

3. Turn ignition switch ON.

CAUTION:

Never start the engine.

4. Check voltage between EPS control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

CHECK EPS CONTROL UNIT POWER SUPPLY CIRCUIT (4)

1. Turn ignition switch OFF.

2. Check the 50A fusible links G and I.

3. Check the harness for open or short between EPS control unit harness connector terminal 9 and the 50A

fusible links G and I.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit. Refer to 

PG-13, "Wiring Diagram — Bat-

tery Power Supply —"

.

EPS control unit

—

Voltage

(Approx.)

Connector

Terminal

M49

4

Ground

 0 V

EPS control unit

—

Voltage

(Approx.)

Connector

Terminal

M49

4

Ground

Battery voltage

EPS control unit

—

Voltage

(Approx.)

Connector

Terminal

M48

9

Ground

Battery voltage

EPS control unit

—

Voltage

(Approx.)

Connector

Terminal

M48

9

Ground

Battery voltage