Nissan Rogue (T33) 2021-Present Service Manual: B2fb0-14 Ignition Relay-3

Nissan Rogue (T33) 2021-Present Service Manual / Electrical & Power Control :: Power Control System / Power Distribution System :: Dtc/circuit Diagnosis / B2fb0-14 Ignition Relay-3

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content) 		DTC detection condition
B2FB0-14

Ignition relay-3

(Ignition relay-3) 		Diagnosis condition When ignition switch is OFF
Signal (terminal) Ignition relay-3 control signal [terminal #33 (with type A meter) or terminal #40 (with type B meter)]
Threshold 0 V
Diagnosis delay time 1 second or more

POSSIBLE CAUSE

  • Harness or connectors (ignition relay-3 control signal circuit is open or shorted to ground)

  • Ignition relay-3

  • BCM

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Ignition switch ON.

  2. Ignition switch OFF and wait for 1 second or more.

  3. Ignition switch ON.

  4. Select “Self diagnosis result” mode of “BCM”.

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 IGNITION RELAY-3 CONTROL SIGNAL VOLTAGE

  1. Ignition switch OFF.

  2. Disconnect BCM connector.

  3. Check voltage between BCM harness connector and ground.

    With type A meter
    + -

    Voltage

    (Approx.)
    BCM
    Connector Terminal
    M51 33 Ground Battery voltage
    With type B meter
    + -

    Voltage

    (Approx.)
    BCM
    Connector Terminal
    M18 40 Ground Battery voltage

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK IGNITION RELAY-3 CONTROL SIGNAL CIRCUIT (OPEN)

  1. Disconnect ignition relay-3 connector.

  2. Check continuity between BCM harness connector and ignition relay-3 harness connector.

    With type A meter
    BCM Ignition relay-3 Continuity
    Connector Terminal Connector Terminal
    M51 33 E83 2 Yes
    With type B meter
    BCM Ignition relay-3 Continuity
    Connector Terminal Connector Terminal
    M18 40 E83 2 Yes

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair the harness or connector.

CHECK IGNITION RELAY-3 CONTROL SIGNAL CIRCUIT (SHORT TO GROUND)

Check continuity between BCM harness connector and ground.

With type A meter
BCM — Continuity
Connector Terminal
M51 33 Ground No
With type B meter
BCM — Continuity
Connector Terminal
M18 40 Ground No

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair the harness or connector.

CHECK IGNITION RELAY-3

Check ignition relay-3. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace ignition relay-3.

Component Inspection

CHECK IGNITION RELAY-3

  1. Ignition switch OFF.

  2. Disconnect ignition relay-3 connector.

  3. Check continuity between ignition relay-3 terminals.

Ignition relay-3 Condition Continuity
Terminals
3 4 12 V direct current supply between terminals 1 and 2. Yes
No current supply No

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace ignition relay-3.

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