P0CA2 GMC - 14V Power Module Step Down Voltage Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

P0CA2 GMC Possible Causes

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

How do I fix code P0CA2 GMC?

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.
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Cost of diagnosing the P0CA2 GMC code

Labor: 1.0

The cost of diagnosing the P0CA2 GMC 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.

Possible Symptoms

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

P0CA2 GMC Description

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.
OBDII Code P0ca2 Gmc - 14V Power Module Step Down Voltage Performance - AutoCodes.com

More Information

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