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Nissan Armada 2025-2026 Service and Repair Manual: Heated Steering Wheel System Does Not Activate

Nissan Armada 2025-2026 Service and Repair Manual / Steering / Steering System / Heated Steering Wheel System Does Not Activate

Description

  • The heated steering wheel does not warm up.

  • The heated steering wheel system cannot be turned OFF.

Diagnosis Procedure

PERFORM SELF-DIAGNOSIS

With CONSULT

  1. Ignition switch ON.

  2. Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.

  3. Check DTC.

Is DTC detected?

B24F4-12 is detected.>>

Refer to DTC Description.

B24F4-14 is detected.>>

Refer to Diagnosis Procedure.

NO>>

GO TO 2.

CHECK POWER SOURCE AND GROUND CIRCUIT

  1. Turn ignition switch OFF.

  2. Remove the heated steering wheel. Refer to Removal and Installation.

  3. Turn ignition switch ON.

    CAUTION:

    Never start the engine.

  4. Turn heated steering wheel switch ON.

  5. Check voltage between spiral cable harness connector terminals.

    Spiral cable Condition Voltage (Approx.)
    Connector Terminal
    M82 41 − 42 Within 30 seconds after turning ON the heated steering switch. Battery voltage
    Other conditions. 0 V

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 4.

CHECK GROUND CIRCUIT

Check continuity between spiral cable harness connector terminal and ground.

Spiral cable Ground Continuity
Connector Terminal
M82 41 Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace damaged parts.

CHECK HARNESS BETWEEN HEATED STEERING WHEEL RELAY AND SPIRAL CABLE

  1. Turn ignition switch OFF.

  2. Disconnect heated steering wheel relay connector. Refer to Component Parts Location.

  3. Disconnect spiral cable connector.

  4. Check continuity between heated steering wheel relay harness connector terminal and spiral cable harness connector terminal.

    Heated steering wheel relay Spiral cable Continuity
    Connector Terminal Connector Terminal
    E79 5 M82 41 Existed

  5. Check continuity between heated steering wheel relay harness connector terminal and ground.

    Heated steering wheel relay Ground Continuity
    Connector Terminal
    E79 5 Not existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace damaged parts.

DETECT MALFUNCTIONING ITEM

Check the following.

  • Battery

  • Harness for short or open between battery and fuse block (J/B).

  • 10A fuse [No. 53 and 67, located in the fuse block (J/B)]. Refer to Wiring Diagram.

  • Fuse block (J/B)

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace damaged parts.

CHECK HARNESS BETWEEN HEATED STEERING WHEEL RELAY AND A/C AUTO AMP.

  1. Check continuity between heated steering wheel relay harness connector terminal and A/C auto amp. harness connector terminal.

    Heated steering wheel relay A/C auto amp. Continuity
    Connector Terminal Connector Terminal
    E79 2 M6 56 Existed

  2. Check continuity between heated steering wheel relay harness connector terminal and ground.

    Heated steering wheel relay Ground Continuity
    Connector Terminal
    E79 2 Not existed

Is the inspection result normal?

YES>>

GO TO 7 .

NO>>

Repair or replace damaged parts.

CHECK HARNESS BETWEEN FUSE BLOCK (J/B) AND HEATED STEERING WHEEL RELAY

  1. Check continuity between fuse block (J/B) harness connector terminal and heated steering wheel relay.

    Fuse block (J/B) Heated steering wheel relay Continuity
    Connector Terminal Connector Terminal
    E102 72 E79 1 Existed

  2. Check continuity between heated steering wheel relay harness connector terminal and ground.

    Fuse block (J/B) Ground Continuity
    Connector Terminal
    E102 72 Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair or replace damaged parts.

CHECK HEATED STEERING WHEEL RELAY

Check heated steering wheel relay. Refer to Component Inspection (Heated Steering Wheel Relay).

Is the inspection result normal?

YES>>

Repair or replace A/C auto amp. Refer to Removal and Installation.

NO>>

Replace heated steering wheel relay. Refer to Component Parts Location.

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    Power Supply, Ground & Circuit Elements Service Data and Specifications
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