Nissan Rogue (T33) 2021-Present Service Manual: B24c6-12 Blower Motor Control

Nissan Rogue (T33) 2021-Present Service Manual / Ventilation, Heater & Air Conditioner :: Heater & Air Conditioning Control System / Automatic Air Conditioning :: Dtc/circuit Diagnosis / B24c6-12 Blower Motor Control

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
B24C6–12

BLOWER MOTOR CONTROL

(Blower motor control) 		[CIRCUIT SHORT TO GROUND] Diagnosis condition When ignition switch is ON
Signal (Terminal) Blower motor control signal
Threshold Blower motor control signal circuit has a short to ground
Diagnosis delay time —

POSSIBLE CAUSE

  • Harness or connectors (blower motor control signal circuit is shorted to ground)

  • A/C amp.

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM SELF DIAGNOSIS RESULT

CONSULT

  1. Ignition switch ON.

  2. Select “Self diagnosis result” mode of “HVAC”.

  3. Check DTC.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: Inspection End.

DTC Diagnosis Procedure

CHECK FRONT BLOWER MOTOR CONTROL SIGNAL

  1. Ignition switch ON.

  2. Check duty ratios between front blower motor harness connector and ground by using an oscilloscope.

    (+) (−) Condition

    Output waveform

    (Approx.)
    Front blower motor
    Connector Terminal
    M144 1 Ground Front blower motor: OFF Battery voltage
    Front blower motor: 1st speed (manual)

    Front blower motor: 7th speed (manual)

Is the inspection result normal?

YES>>

Replace front blower motor. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK FRONT BLOWER MOTOR CONTROL SIGNAL CIRCUIT FOR OPEN

  1. Ignition switch OFF.

  2. Disconnect front blower motor connector and A/C amp. connector.

  3. Check continuity between front blower motor harness connector and A/C amp. harness connector.

    Front blower motor A/C amp. Continuity
    Connector Terminal Connector Terminal
    M144 1 M50 34 Yes

  4. Check continuity between front blower motor harness connector and ground.

    Front blower motor (—) Continuity
    Connector Terminal
    M144 1 Ground Yes

Is the inspection result normal?

YES>>

Replace the A/C amp. Refer to Removal and Installation.

NO>>

Repair the harnesses or connectors.

    B24b4-02 A/c Control Comm
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B24B4-02 A/C CONTROL COMM (Air conditioning control communic...
    B24f4-12 Heated Steering Wheel Relay
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B24F4-12 Heated steering wheel relay (Heated steering wheel ...

    Other materials:

    Dtc/circuit Diagnosis. B14e0-4a Wheel Sensor
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms DTC detection condition B14E0 4A Wheel sensor Diagnosis condition Ignition switch is ON. Signal (terminal) Front left wheel sensor signal Threshold When front left wheel sensor is installed to wrong po ...

    Av Control Unit
    Nissanconnect with 8" Color Display Reference Value VALUES ON THE DIAGNOSIS TOOLNOTE: The following table includes information (items) inapplicable to this Nissan Ariya vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items. Monitor Item Condition Va ...

    Hood
    WARNING Make sure the hood of your Nissan Rogue is fully closed and latched before driving. Do not open the hood if steam or smoke is coming from the engine compartment. 1. Pull the hood lock release handle 1 located below the driver’s side instrument panel to slightly raise the hood of t ...