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AutoCodes - Generic - P1AC0

P1AC0 Code - Starter/Generator Control Module Output Circuit

- Code Popularity: 3,629 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1AC0?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Starter/Generator Control Module Cooling Fan Relay
  • Starter/Generator Control Module Cooling Fan Relay harness is open or shorted
  • Starter/Generator Control Module Cooling Fan Relay circuit poor electrical connection
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How to Fix the DTC P1AC0?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1AC0 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P1AC0 Description

The Starter/Generator Control Module (SGCM) coolant pump/fan relay supplies battery voltage to the SGCM coolant pump relay and the SGCM coolant fan relay. The SGCM monitors the temperature of the low side driver for the SGCM coolant pump/fan relay. The temperature sensor of the driver is not serviceable and the data for this sensor is not available on the scan tool. This internal driver temperature sensor aids in detecting a control circuit shorted to ground or a shorted relay coil.

OBDII Code P1AC0 - Starter/Generator Control Module Output Circuit - AutoCodes.com
P1AC0 Code - Starter/Generator Control Module Output Circuit

Need More Information on the Code?

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Information for Specific Makes

  • P1AC0 Buick Starter/Generator Control Module Output Circuit
  • P1AC0 Cadillac Starter/Generator Control Module Output Circuit
  • P1AC0 Chevrolet Starter/Generator Control Module Output Circuit
  • P1AC0 GMC Starter/Generator Control Module Output Circuit
  • P1AC0 Saturn Starter/Generator Control Module Output Circuit

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Code P1AC0 comments

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