P1A81 GMC - Starter/Generator Control Module Coolant Level Sensor 2 Low Voltage

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

P1A81 GMC Possible Causes

  • Faulty Starter/Generator Control Module (SGCM)
  • Starter/Generator Control Module (SGCM) harness is open or shorted
  • Starter/Generator Control Module (SGCM) circuit poor electrical connection

How do I fix code P1A81 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.

Tech Notes

If the vehicle is on an extreme angle this code may set.

Cost of diagnosing the P1A81 GMC code

Labor: 1.0

The cost of diagnosing the P1A81 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)

P1a81 Gmc Description

The Starter/Generator Control Module (SGCM) electronics are immersed in an internal fluid to distribute the heat of the electronics evenly through the SGCM, this electronics internal fluid is not the coolant that is circulated through the SGCM cooling system. The SGCM monitors 4 separate internal fluid level sensors to determine if the electronics internal fluid level is low.
OBDII Code P1a81 Gmc - Starter/Generator Control Module Coolant Level Sensor 2 Low Voltage - AutoCodes.com

P1A81 GMC More Information

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