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Nissan Rogue Service Manual: C1601 battery power supply

Nissan Rogue Service Manual / Steering / Steering Control System / Dtc/circuit diagnosis / C1601 battery power supply

DTC Logic

DTC DETECTION LOGIC

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

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 “EPS” self-diagnosis.

Is DTC “C1601” detected? YES >> Proceed to diagnosis procedure. Refer to STC-20, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

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.

Check EPS control unit ground circuit

  1. 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.

Check EPS control unit power supply circuit (1)

  1. Turn ignition switch ON.

    CAUTION: Never start the engine.

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

Check EPS control unit power supply circuit (1)

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-4, "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.

Check EPS control unit power supply circuit (3)

  1. Turn ignition switch ON.

    CAUTION: Never start the engine.

  2.  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-4, "Wiring Diagram — Battery Power Supply —".

NO >> Repair or replace malfunctioning parts.

6.CHECK TERMINALS AND HARNESS CONNECTORS

Check the EPS control unit pin terminals for damage or loose connection with harness connector.

Is the inspection result normal? YES >> EPS control unit is malfunctioning. Replace steering column assembly. Refer to STC-36, "Removal and Installation".

NO >> Repair or replace malfunctioning parts.

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