Engine-Codes - Generic - P0C77

P0C77 Code - Hybrid Battery System Precharge Time Too Short

- Code Popularity: 1,520 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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|What are the Possible Causes of the Code P0C77?

  • Faulty Inverter with converter assembly
  • Inverter with converter assembly harness is open or shorted
  • Inverter with converter assembly circuit poor electrical connection
  • Faulty Power management control ECU

|How to Fix the P0C77 Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

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|What is the Cost to Diagnose the Code P0C77?

Labor: 1.0

The cost to diagnose the P0C77 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|What are Code P0C77 Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the P0C77 Code Mean?

The inverter contains a three-phase bridge circuit, which consists of six power transistors (IGBTs) each for MG1 and MG2. The inverter converts high-voltage direct current from the HV battery into three-phase alternating current for generator (MG1) and motor (MG2); it also converts three-phase alternating current supplied by generator (MG1) and motor (MG2) into direct current for the HV battery. The MG ECU controls the actuation of the power transistors (IGBTs). The inverter transmits information necessary for control, such as amperage and voltage, to the MG ECU.

P0C77 Code - Hybrid Battery System Precharge Time Too Short

|Need more Information on the P0C77 Code?

Need more information on how to fix the P0C77 code? Get Access to Factory Service Manuals

|Code P0C77 Information for Specific Makes

  • P0C77 Buick Hybrid Battery System Precharge Time Too Short
  • P0C77 Cadillac Hybrid Battery System Precharge Time Too Short
  • P0C77 Chevrolet Hybrid Battery System Precharge Time Too Short
  • P0C77 GMC Hybrid Battery System Precharge Time Too Short
  • P0C77 Lexus Hybrid Battery System Precharge Time Too Short
  • P0C77 Toyota Hybrid Battery System Precharge Time Too Short

|Need Help with the P0C77 Code?

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