Drive Motor ‘A’ Inverter Phase V Over Temperature
Table of contents
P0C12 BUICK Possible Causes
- Faulty Drive Motor ‘A’ Inverter
- Drive Motor ‘A’ Inverter harness is open or shorted
- Drive Motor ‘A’ Inverter circuit poor electrical connection
How do I fix code P0C12 BUICK?
Check 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.
Cost of diagnosing the P0C12 BUICK code
The cost of diagnosing the P0C12 BUICK code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
The code is set when the control unit has detected an in-range over-temperature condition that can potentially damage inverter.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0C12 BUICK Description
The Power Inverter Module, often referred to as the Drive Motor Generator Power Inverter Module, contains two motor control modules and the hybrid powertrain control module. Each motor control modules operates its respective drive motor generator based upon hybrid powertrain control module commands. Each motor control modules controls the speed, direction and output torque of its respective drive motor generator through the sequencing actuation of high current switching transistors called insulated gate bipolar transistors. Each drive motor generator operates utilizing 3 phase AC. Each insulated gate bipolar transistor operates a single phase of the drive motor generator. Each phase is inpidually identified as U, V and W. Each motor control modules monitors the temperature of each phase in order to detect power inverter module overtemperature conditions.