Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Nissan-Datsun >> 2017 >> Maxima SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 4) >> DTC/Circuit Diagnosis >> DTC P1554: Battery Current Sensor >> DTC Description >> DTC Confirmation Procedure

DTC Confirmation Procedure

  1. CHECK DTC PRIORITY

    If DTC P1554 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

    Is applicable DTC detected?

    YES 

    Perform diagnosis of applicable. Refer to DTC DESCRIPTION .

    NO 

    GO TO STEP 2  .

  2. PRECONDITIONING

    NOTE:

    Use component function check to check the overall function of the battery current sensor circuit. During this check, a 1st trip DTC might not be confirmed.

    TESTING CONDITION: 

    • Before performing the following procedure, confirm that battery voltage is more than 12.8 V at idle. 
    • Before performing the following procedure, confirm that all load switches and A/C switch are turned OFF. 

    GO TO STEP 3. 

  3. PERFORM COMPONENT FUNCTION CHECK

    G-20With CONSULT 

    1. Start engine and let it idle.
    2. Select "BAT CUR SEN" in "DATA MONITOR" mode with CONSULT.
    3. Check "BAT CUR SEN" indication for 10 seconds.

      "BAT CUR SEN" should be above 2.3 V at least once. 

    G-21Without CONSULT 

    1. Start engine and let it idle.
    2. Check voltage between ECM harness connector terminals under the following conditions.
      ECM Voltage (V)
      Connector + -
      Terminal
      F14 69 64 Above 2.3 at least once

    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 

scientia non olet · About Mike's Workshop Manuals