Nissan Rogue (T33) 2021-Present Service Manual: B2480-93 Rear Air Mix Door Motor

Nissan Rogue (T33) 2021-Present Service Manual / Ventilation, Heater & Air Conditioner :: Heater & Air Conditioning Control System / Automatic Air Conditioning :: Dtc/circuit Diagnosis / B2480-93 Rear Air Mix Door Motor

DTC Description

DTC DETECTION LOGIC

NOTE:

If all of door motors DTC (B2480-93*, B24F5-93, B24F6-93, B24F7-93, B24F8-93) are detected, check “DOOR MOTOR”. Refer to Diagnosis Procedure.

*: With rear air control

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
B2480-93

Rear air mix door motor

(Rear air mix door motor) 		Diagnosis condition Ignition switch ON
Signal (Terminal) LIN (door motor) signal
Threshold Drive error of air mix door motor (rear) is detected
Diagnosis delay time 1 second or more

POSSIBLE CAUSE

  • Harness and connector [air mix door motor (rear) circuit is open or shorted to ground]

  • Air mix door motor (rear) installation condition

  • Air mix door motor (rear)

  • A/C amp.

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM SELF-DIAGNOSIS

CONSULT

  1. Start the engine.

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

  3. Check DTC.

Is DTC detected?

YES>>

Refer to 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 AIR MIX DOOR MOTOR (REAR) POWER SUPPLY

  1. Ignition switch ON.

  2. Check voltage between air mix door motor (rear) harness connector and A/C amp. harness connector.

(+) (−) Voltage
Air mix door motor (rear) A/C amp.
Connector Terminal Connector Terminal
M151 1 M55 58 Battery voltage

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

GO TO 5.

CHECK AIR MIX DOOR MOTOR (REAR) GROUND CIRCUIT FOR OPEN

  1. Ignition switch OFF.

  2. Disconnect air mix door motor (rear) connector and A/C amp. connector.

  3. Check continuity between air mix door motor (rear) harness connector and A/C amp. harness connector.

    Air mix door motor (rear) A/C amp. Continuity
    Connector Terminal Connector Terminal
    M151 2 M54 27 Yes

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness or connector.

CHECK AIR MIX DOOR MOTOR (REAR) LIN SIGNAL CIRCUIT

  1. Connect air mix door motor (rear) connector and A/C amp. connector.

  2. Ignition switch ON.

  3. Confirm output waveform between air mix door motor (rear) harness connector and A/C amp. harness connector with oscilloscope.

    (+) (−) Output waveform
    Air mix door motor (rear) A/C amp.
    Connector Terminal Connector Terminal
    M151 3 M55 58

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 6.

CHECK INSTALLATION OF AIR MIX DOOR MOTOR (REAR)

Check air mix door motor (rear) is properly installed. Refer to Exploded View.

Is the inspection result normal?

YES>>

Replace air mix door motor (rear). Refer to Removal and Installation.

NO>>

Repair or replace malfunctioning part.

CHECK AIR MIX DOOR MOTOR (REAR) POWER SUPPLY CIRCUIT FOR OPEN

  1. Ignition switch OFF.

  2. Disconnect air mix door motor (rear) connector and A/C amp. connector.

  3. Check continuity between air mix door motor (rear) harness connector and A/C amp. harness connector.

    Air mix door motor (rear) A/C amp. Continuity
    Connector Terminal Connector Terminal
    M151 1 M54 1 Yes

Is the inspection result normal?

YES>>

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

NO>>

Repair harness or connector.

CHECK AIR MIX DOOR MOTOR (REAR) LIN SIGNAL CIRCUIT FOR OPEN

  1. Ignition switch OFF.

  2. Disconnect air mix door motor (rear) connector and A/C amp. connector.

  3. Check continuity between air mix door motor (rear) harness connector and A/C amp. harness connector.

    Air mix door motor (rear) A/C amp. Continuity
    Connector Terminal Connector Terminal
    M151 3 M54 2 Yes

Is the inspection result normal?

YES>>

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

NO>>

Repair harness or connector.

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