Engine-Codes - Gmc - P0CA2 GMC

P0CA2 GMC Code - 14V Power Module Step Down Voltage Performance

- Code Popularity: 267 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the P0CA2 GMC Code?

  • Faulty Starter Generator Control Module
  • Starter Generator Control Module harness is open or shorted
  • Starter Generator Control Module circuit poor electrical connection

|How to Fix the P0CA2 GMC 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.

|What is the cost to diagnose the P0CA2 GMC code?

Labor: 1.0

The cost to diagnose the P0CA2 GMC 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.

|What are P0CA2 GMC code possible symptoms?

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

|What Does the P0CA2 GMC Code Mean?

The generator control module also called the starter generator control module is comprised of the following three control modules; the hybrid powertrain control module, 14 volt power module and the drive motor control module. These three control modules are non serviceable and are part of the generator control module.
The 14V power module has switching transistors that allows it to convert high voltage from the Hybrid Battery to 12 volts. This diagnostic is designed to test for an electrical short in the MOSFET transistors. The transistors are internal to the 14V power module and cannot be serviced separately from the generator control module.

14V Power Module Step Down Voltage Performance

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