Nissan Rogue (T33) 2021-Present Service Manual: B12a4u201392 Battery Current Sensor

Nissan Rogue (T33) 2021-Present Service Manual / Electrical & Power Control :: Charging System / With Idle Start/stop :: Dtc/circuit Diagnosis / B12a4u201392 Battery Current Sensor

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
(Trouble diagnosis content) [Malfunction type]
B12A4–92

BATTERY CURRENT SENSOR

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

POSSIBLE CAUSE

  • IPDM E/R

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

FAIL-SAFE

Fix the power generation command value to 14.3 V.

DTC CONFIRMATION PROCEDURE

PERFORM COMPONENT FUNCTION CHECK

CONSULT

  1. Start engine and wait for 10 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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