Nissan Murano: Steering Control System :: Dtc/circuit Diagnosis / C1601 Battery Volt

Nissan Murano (Z52) 2015-2024 Service Manual / Steering / Steering Control System :: Dtc/circuit Diagnosis / C1601 Battery Volt

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition
C1601

BATTERY VOLT

(Battery voltage) 		Diagnosis condition When ignition switch ON.
Signal (terminal) Power steering control module supply voltage (terminals 1 and 5)
Threshold Less than 8 V or more than 19 V
Diagnosis delay time Less than 1 second

POSSIBLE CAUSE

  • Harness or connectors

  • Power steering control module

  • Fuse

  • Battery power supply circuit

  • Battery

FAIL-SAFE

Manual steering state

DTC Confirmation Procedure

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always place the ignition switch in the OFF position and wait at least 10 seconds before conducting the next test.

>>

GO TO 2.

DTC REPRODUCTION PROCEDURE

CONSULT

  1. Ignition switch OFF to ON.

  2. Select "Self Diagnostic Result" mode of "EPS/DAST 3".

Is DTC “C1601” detected?

YES>>

Proceed to diagnosis procedure. Refer to DTC Diagnosis Procedure.

NO>>

Inspection End.

DTC Diagnosis Procedure

CHECK POWER STEERING CONTROL MODULE GROUND CIRCUIT

  1. Ignition switch OFF.

  2. Disconnect power steering control module harness connector.

  3. Check continuity between power steering control module harness connector terminal and ground.

    Power steering control module — Continuity
    Connector Terminal
    E63 2 Ground Yes

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, and repair or replace the malfunctioning component.

CHECK POWER STEERING CONTROL MODULE POWER SUPPLY CIRCUIT (1)

  1. Check voltage between power steering control module harness connector terminal and ground.

    (+) (–)

    Voltage

    (Approx.)
    Power steering control module
    Connector Terminal
    E63 1 Ground Battery voltage

  2. Ignition switch ON.

    CAUTION:

    Never start the engine.

  3. Check voltage between power steering control module harness connector terminal and ground.

    Power steering control module —

    Voltage

    (Approx.)
    Connector Terminal
    E63 1 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 3.

CHECK POWER STEERING CONTROL MODULE POWER SUPPLY CIRCUIT (2)

  1. Ignition switch OFF.

  2. Check the 100A fusible link (#D).

  3. Disconnect battery terminal with fusible link box (battery) harness connector.

  4. Check continuity between power steering control module harness connector terminal and battery terminal with fusible link box (battery) harness connector terminal.

    Power steering control module Fusible link box (battery) Continuity
    Connector Terminal Connector Terminal
    E63 1 E7 3 Yes

  5. Check continuity between power steering control module harness connector terminal and ground.

    Power steering control module — Continuity
    Connector Terminal
    E63 1 Ground No

Is the inspection result normal?

YES>>

Perform the trouble diagnosis for battery power supply circuit. Refer to Wiring Diagram.

NO>>

Repair or replace the malfunctioning component.

CHECK POWER STEERING CONTROL MODULE POWER SUPPLY CIRCUIT (3)

  1. Ignition switch OFF.

  2. Check voltage between power steering control module harness connector terminal and ground.

    (+) (–)

    Voltage

    (Approx.)
    Power steering control module
    Connector Terminal
    E62 5 Ground 0 V

  3. Ignition switch ON.

    CAUTION:

    Never start the engine.

  4. Check voltage between power steering control module harness connector terminal and ground.

    (+) (–)

    Voltage

    (Approx.)
    Power steering control module
    Connector Terminal
    E62 5 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

GO TO 5.

CHECK POWER STEERING CONTROL MODULE POWER SUPPLY CIRCUIT (4)

  1. Ignition switch OFF.

  2. Check the 10A fuse No. 46 in the IPDM E/R.

  3. Disconnect IPDM E/R harness connector.

  4. Check continuity between power steering control module harness connector terminal and IPDM E/R harness connector terminal.

    Power steering control module IPDM E/R Continuity
    Connector Terminal Connector Terminal
    E62 5 E119 35 Yes

  5. Check continuity between power steering control module harness connector terminal and ground.

    Power steering control module — Continuity
    Connector Terminal
    E62 5 Ground No

Is the inspection result normal?

YES>>

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

NO>>

Repair or replace the malfunctioning component.

CHECK TERMINALS AND HARNESS CONNECTORS

Check the power steering control module pin terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

Power steering control module is malfunctioning. Replace steering oil pump assembly. Refer to Removal and Installation.

NO>>

Repair or replace the malfunctioning component.

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