Nissan Rogue (T33) 2021-Present Service Manual: B12a4u201394 Battery Current Sensor

Nissan Rogue (T33) 2021-Present Service Manual / Electrical & Power Control :: Charging System / With Idle Start/stop :: Dtc/circuit Diagnosis / B12a4u201394 Battery Current Sensor

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
(Trouble diagnosis content) [Malfunction type]
B12A4–94

BATTERY CURRENT SENSOR

(Battery current sensor) 		[UNEXPECTED OPERATION] Diagnosis condition When ignition switch is ON.
Signal (terminal) LIN (BAT CURRENT SEN)
Threshold 12V battery current sensor internal malfunction (OCV).
Diagnosis delay time 1 second or less.

POSSIBLE CAUSE

  • IPDM E/R

  • 12V battery current sensor (With 12V battery temperature sensor)

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM COMPONENT FUNCTION CHECK

CONSULT

  1. Ignition ON, and wait for 5 seconds or more.

  2. Select “Self diagnosis result” mode of “IPDM E/R”.

Is the inspection result normal?

YES-1>>

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

YES-2>>

Confirmation after repair: Inspection End.

NO>>

Proceed to Diagnosis Procedure.

Diagnosis Procedure

CHECK LIN COMMUNICATION SIGNAL

  1. Ignition switch ON.

  2. Check signal between 12V battery current sensor harness connector and ground using an oscilloscope.

    (+) (−) Signal
    12V battery current sensor
    Connector Terminal
    E37 2 Ground

Is the inspection result normal?

YES>>

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

NO>>

Replace 12V battery current sensor. Refer to Removal and Installation.

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