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Home >> Infiniti >> 2006 >> M45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - VK45DE - M45 - DTC P1148 Through P2A03 >> DTC P1553 Battery Current Sensor >> Component Inspection >> Battery Current Sensor

Battery Current Sensor

  1. Reconnect harness connectors disconnected.
  2. Disconnect battery negative cable (1).
    • <-: To body ground
  3. Install jumper cable A between battery negative terminal and body ground.
  4. Turn ignition switch ON.
    Fig 1: Installing Jumper Cable Between Battery Negative Terminal And Body Ground
    G04143794Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Check voltage between ECM terminal 71 (battery current sensor signal) and ground.

    Voltage: Approximately 2.5V 

  6. If NG, replace battery negative cable assembly.
Fig 2: Checking Voltage Between Terminal 71 And Ground
G04147591Courtesy of NISSAN MOTOR CO., U.S.A.