HYBRID CONTROL SYSTEM, Diagnostic DTC:P0C76-523

DTC Code DTC Name
P0C76-523 Hybrid Battery System Discharge Time Too Long

DESCRIPTION

Refer to the description for DTC P0A78-266 Click here.

DTC No. INF Code DTC Detection Condition Trouble Area
P0C76 523 Inverter voltage (VH) sensor offset malfunction Inverter with converter assembly

Tech Tips

When the power switch is turned off, the MG ECU applies current to MG2 in a way that does not generate torque in order to discharge the residual voltage in the inverter. When the hybrid system is normal, the VH value is almost 0 V after discharge. This DTC will be stored if the VH value is more than the specified value after discharge.

A01GXLME02

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    4. Check if DTCs are output.

      Result
      Result Proceed to
      P0C76-523 only is output.

      A

      (for LHD)

      B

      (for RHD)
      Any of the following DTCs are also output. C
      DTC No. Relevant Diagnosis
      P0A1A-151, 155, 156, 200, 201, 658, 659, 791, 792, 793 Generator Control Module
      P0A1B-163, 164, 168, 192, 193, 511, 512, 661, 786, 788, 794, 795, 796 Drive Motor "A" Control Module
      P0A3F-243 Drive Motor "A" Position Sensor Circuit
      P0A40-500 Drive Motor "A" Position Sensor Circuit Range / Performance
      P0A41-245 Drive Motor "A" Position Sensor Circuit Low
      P0A4B-253 Generator Position Sensor Circuit
      P0A4C-513 Generator Position Sensor Circuit Range / Performance
      P0A4D-255 Generator Position Sensor Circuit Low
      P0A78-113, 121, 266, 267, 279, 282, 284, 286, 287, 306, 503, 504, 505, 506 Drive Motor "A" Inverter Performance
      P0A7A-122, 322, 324, 325, 344, 517, 518 Generator Inverter Performance
      P0A90-509 Drive Motor "A" Performance
      P0A92-521 Hybrid Generator Performance
      P0A94-442 DC / DC Converter Performance
      P0ADC-226 Hybrid Battery Positive Contactor Control Circuit High
      P0AE0-228 Hybrid Battery Negative Contactor Control Circuit High
      P3240-443 DC/DC Converter Control Circuit

    B

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

    C

    GO TO DTC CHART Click here

    A

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here