Nissan Murano: Dtc/circuit Diagnosis / B260a Ignition Relay

Nissan Murano (Z52) 2015-2024 Service Manual / Electrical & Power Control / Power Control System :: Power Distribution System / Dtc/circuit Diagnosis / B260a Ignition Relay

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC Detection Condition
B260A

IGNITION RELAY

(Ignition relay)
Diagnosis condition When ignition switch ON.
Signal (terminal)
Threshold
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

  • Harness or connectors

  • BCM

  • IPDM E/R

FAIL SAFE

DTC Confirmation Procedure

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Ignition switch ON under the following conditions and wait for at least 2 seconds:

    • CVT selector lever is in the P (park) or N (neutral) position.

    • Release the brake pedal.

  2. Select “Self Diagnostic Result” mode of “BCM”.

  3. Check DTC.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO>>

Inspection End.

DTC Diagnosis Procedure

CHECK SELF DIAGNOSTIC RESULT

CONSULT

Select “Self Diagnostic Result” mode of “IPDM E/R”.

Are any DTCs detected?

YES>>

Refer to DTC Index.

NO>>

GO TO 2.

CHECK IGNITION RELAY-1 SIGNAL

Check voltage between BCM harness connector and ground.

BCM Condition

Voltage

(Approx.)
Connector Terminal
M19 70 Ground Ignition switch: ON 0 V

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 5.

CHECK IGNITION RELAY-1 POWER SUPPLY

Check voltage between IPDM E/R harness connector and ground.

IPDM E/R Condition

Voltage

(Approx.)
Connector Terminal
E119 43 Ground Ignition switch: OFF Battery voltage

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

GO TO 4.

CHECK IGNITION RELAY-1 SIGNAL CIRCUIT CONTINUITY

  1. Ignition switch OFF.

  2. Disconnect BCM connector and IPDM E/R connector.

  3. Check continuity between BCM harness connector and IPDM E/R harness connector.

    BCM IPDM E/R Continuity
    Connector Terminal Connector Terminal
    M19 70 E119 43 Yes
  4. Check continuity between BCM harness connector and ground.

    BCM Continuity
    Connector Terminal
    M19 70 Ground No

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness or connectors.

CHECK IGNITION RELAY-1 SIGNAL CIRCUIT

  1. Ignition switch OFF.

  2. Disconnect BCM connector and IPDM E/R connector E119.

  3. Check voltage between BCM harness connector and ground.

    BCM

    Voltage

    (Approx.)
    Connector Terminal
    M19 70 Ground 0 V

Is the inspection result normal?

YES>>

Replace IPDM E/R. Refer to Removal and Installation.

NO>>

Repair or replace harness or connectors.

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