Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: B0020-1a Side A/b Module Lh

Nissan Rogue (T33) 2021-Present Service Manual / Restraints :: Srs Air Bag Control System / Dtc/circuit Diagnosis :: B0020-1a Side A/b Module Lh

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content) 		DTC Detection Condition
B0020-1A

SIDE A/B MODULE LH

(Left Side Airbag Deployment Control) 		Diagnosis condition When ignition switch is ON.
Signal (terminal) Front side air bag module LH signal
Threshold Front side air bag module LH circuits are shorted to each other
Diagnosis delay time 2 seconds or more.

POSSIBLE CAUSE

  • Connection malfunction or short circuit of harness and connector

  • Internal malfunction of front side air bag module LH

  • Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF DIAGNOSIS RESULT

CONSULT

  1. Ignition switch ON.

  2. Perform “Self diagnosis result” mode of “AIR BAG” using CONSULT.

Is malfunctioning part 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

Diagnosis Procedure

WARNING:

  • Before servicing, ignition switch OFF, disconnect battery negative terminal, and wait at least 3 minutes or more. (To discharge backup capacitor.)

  • Never use unspecified tester or other measuring device.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace harness connector.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace wiring harness.

REPLACE FRONT SIDE AIR BAG MODULE LH

  1. Replace front side air bag module LH. Refer to Removal and Installation.

  2. Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

GO TO 4.

NO>>

Inspection End

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

  1. Replace air bag diagnosis sensor unit. Refer to Removal and Installation.

  2. Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

GO TO 1.

NO>>

Inspection End

    Dtc/circuit Diagnosis. B0020-13 Side A/b Module Lh
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC Detection Condition B0020-13 SIDE A/B MODULE LH (Left Side Airbag Deployment Con...
    Dtc/circuit Diagnosis. B0020-1b Side A/b Module Lh
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC Detection Condition B0020-1B SIDE A/B MODULE LH (Left Side Airbag Deployment Con...

    Other materials:

    Dtc/circuit Diagnosis. C18d6-09 Brake Power Supply Back up Unit
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms DTC detection condition C18D6 09 Backup power supply unit 1 Diagnosis condition When Ignition switch is ON. Signal (terminal) Brake power supply backup unit signal Threshold When a malfunction is de ...

    Parking brake
    Basic information WARNING Never drive the vehicle with the parking brake applied. The brake will overheat and fail to operate and will lead to an accident. Never release the parking brake from outside the vehicle. If the vehicle moves, it will be impossible to push the foot brake pedal and will l ...

    P14a5 Charge Air Cooler Cooling Electric Water Pump
    DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P14A5 Charge air cooler coolant pump (Charge air cooler coolant pump control circuit high) Diagnosis condition Engine running at idle Warm-up condition ...