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Home › Nissan-Datsun › 2008 › Sentra SE-R › Repair and Diagnosis › External Pages › Different car › Section 195 (Engine Control System - DTCS P1550 To P2A03) › DTC P1553 Battery Current Sensor › Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK GROUND CONNECTIONS 
    1. Turn ignition switch OFF.
    2. Loosen and retighten three ground screws on the body.

      Refer to "GROUND INSPECTION ".

      Fig 1: Locating Body Ground Screws
      G04895412Courtesy of NISSAN NORTH AMERICA, INC.

    OK or NG 

    OK: GO TO 2.

    NG: Repair or replace ground connections.

  2. CHECK BATTERY CURRENT SENSOR POWER SUPPLY CIRCUIT 
    1. Disconnect battery current sensor harness connector.
      Fig 2: Identifying Battery Current Sensor Harness Connector
      G04897212Courtesy of NISSAN NORTH AMERICA, INC.
    2. Turn ignition switch ON.
    3. Check voltage between battery current sensor terminal 1 and ground with CONSULT-II or tester.

      Voltage: Approximately 5V 

      Fig 3: Checking Voltage Between Battery Current Sensor Terminal 1 And Ground
      G04895016Courtesy of NISSAN NORTH AMERICA, INC.

    OK or NG 

    OK: GO TO  4.

    NG: GO TO 3.

  3. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness connectors E5, F14
    • Harness for open or short between battery current sensor and ECM

    Repair open circuit or short to ground or short to power in harness or connectors.

  4. CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check harness continuity between battery current sensor terminal 2 and ECM terminal 67.

      Continuity should exist. 

    4. Also check harness for short to ground and short to power.

    OK or NG 

    OK: GO TO  6.

    NG: GO TO 5.

  5. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness connectors E5, F14
    • Harness for open or short between battery current sensor and ECM

    Repair open circuit or short to ground or short to power in harness or connectors.

  6. CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 
    1. Check harness continuity between battery current sensor terminal 3 and ECM terminal 71.

      Continuity should exist. 

    2. Also check harness for short to ground and short to power.

    OK or NG 

    OK: GO TO  8.

    NG: GO TO 7.

  7. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness connectors E5, F14
    • Harness for open or short between battery current sensor and ECM

    Repair open circuit or short to ground or short to power in harness or connectors.

  8. CHECK BATTERY CURRENT SENSOR 

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK: GO TO 9.

    NG: Replace battery negative cable assembly.

  9. CHECK INTERMITTENT INCIDENT 

    Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

    INSPECTION END 

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