LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2013 >> M35h >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Battery Management Systems >> Hybrid Battery System >> Basic Inspection >> Module Charge Balance >> Work Procedure >> Single Module Replacement Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Single Module Replacement Procedure

CAUTION: Even when replacing only one module, voltage adjustment must be performed for all of the other 11 modules.
  1. CHECK ADJUSTMENT VOLTAGE VALUE 
    1. Measure voltage of all modules (12), using a circuit tester.
    2. Use the minimum module voltage for the voltage adjustment value.
      CAUTION:
      • If the measured minimum module voltage is less than 28.0 V, use 28.0 V for the adjustment voltage.
      • Adjustment voltage must be in 100 mV. (Drop all digits less than 100.)

        Example: 28.825 V (MINIMUM MODULE VOLTAGE) = 28.800 V (Adjustment voltage value)

        Adjustment voltage value: MINIMUM MODULE VOLTAGE (If MINIMUM VOLTAGE VALUE is less than 28.0 V, use 28.0 V.)

      : GO TO 2.

  2. CHECK MODULE VOLTAGE 
    CAUTION:
    • This operation must be performed in an ambient temperature of 0 to 40°C.
    • For details on the module charge balancer operation, refer to the adjuster operation manual.
    1. Set the new module to the module charge balancer.
    2. Measure module voltage and compare it with "adjustment voltage value" confirmed in STEP 1.

      Module voltage is lower than adjustment voltage value: GO TO  4.

      Module voltage is higher than adjustment voltage value: GO TO 3.

  3. DISCHARGE OF MODULE VOLTAGE 
    CAUTION:
    • This operation must be performed in an ambient temperature of 0 to 40°C.
    • For details on the module charge balancer operation, refer to the adjuster operation manual.

    Discharge the module to 26.0 V using module charge balancer.

    Discharge voltage: 26.0 V 

    : GO TO 4.

  4. MODULE VOLTAGE ADJUSTMENT 
    CAUTION:
    • This operation must be performed in an ambient temperature of 0 to 40°C.
    • For details on the module charge balancer operation, refer to the adjuster operation manual.
    1. Enter the "adjustment voltage value" in the module charge balancer.

      Adjustment voltage value: MINIMUM MODULE VOLTAGE (If MINIMUM VOLTAGE VALUE is less than 28.0 V, use 28.0 V.) 

    2. Start the voltage adjustment.

      : After module voltage adjustment, GO TO 5.

  5. CHECK CELL VOLTAGE 

    With CONSULT

    1. After adjusting the voltage, install the module to the vehicle.
    2. Select "DATA MONITOR" mode.
    3. Check the difference between "MAXIMUM CELL VOLTAGE" and "MINIMUM CELL VOLTAGE" to see that the difference is within the specified value.

      Standard: 100 mV or less 

      CAUTION: If the difference between the maximum cell voltage and the minimum cell voltage is more than 100 mV, DTC is detected. Be sure to check that the difference is 100 mV or less.

      : END