If you see the engine light on or the service engine soon warning light, it could be due to the P1AC0 fault code.

This code indicates a problem with the StarterGenerator Control Module Cooling Fan Relay, which could be caused by a faulty relay or a poor electrical connection. It’s important to address this issue promptly, as it could lead to further damage to your vehicle.

The repair time for this issue is estimated at 1.0, and the fix involves visually inspecting the wiring harness and connectors for any damage or corrosion.

To interpret the fault code, you can use an OBD-II scanner or take your vehicle to a mechanic.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you notice the Engine Light ON or Service Engine Soon Warning Light, it could be a sign of p1ac0 fault code. Here are the symptoms to look out for:

  • The P1AC0 fault code in an automobile can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
  • Other symptoms may include reduced engine power, decreased fuel efficiency, and difficulty starting the engine.
  • Additionally, the vehicle may experience rough idling or stalling, and there may be a noticeable decrease in acceleration.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe driving conditions.

The P1AC0 fault code can be caused by a faulty control module, openshorted harness, or poor electrical connection.

  • The automobile fault code P1AC0 can be caused by a faulty Starter/Generator Control Module Cooling Fan Relay.
  • It can also be caused by an open or shorted Starter/Generator Control Module Cooling Fan Relay harness.
  • Additionally, a poor electrical connection in the Starter/Generator Control Module Cooling Fan Relay circuit can also trigger this fault code.

Below are the possible fixes for the automobile fault code p1ac0, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code p1ac0, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code P1AC0 can be diagnosed and fixed within an estimated repair time of 1.0 hour. The cost of repair is influenced by the repair time, which is commonly charged between $75 and $150 per hour by most auto repair shops. Therefore, the total cost of diagnosis and fixing for the P1AC0 fault code will depend on the hourly rate charged by the repair shop and the estimated repair time required to fix the issue.

The P1AC0 code is related to the StarterGenerator Control Module (SGCM) output circuit.

The SGCM coolant pumpfan 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 pumpfan 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.

What are the possible causes of the P1AC0 fault code?

If you’re experiencing the P1AC0 fault code, your engine light may be on. This could be due to a faulty Starter/Generator Control Module Cooling Fan Relay, an open or shorted harness, or a poor electrical connection in the circuit. To fix the issue, visually inspect the wiring harness and connectors for any damage or corrosion. Check for broken, bent, pushed out, or corroded connector pins.

How can I visually inspect the wiring harness and connectors related to the Starter/Generator Control Module Cooling Fan Relay?

If you’re experiencing an Engine Light ON or Service Engine Soon Warning Light, it could be due to a faulty Starter/Generator Control Module Cooling Fan Relay. To fix this issue, you should visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. This will help you identify if the Starter/Generator Control Module Cooling Fan Relay harness is open or shorted, or if there is a poor electrical connection in the circuit.

What should I do if I find damaged components or broken, bent, pushed out, or corroded connector’s pins during the inspection for the P1AC0 fault code?

If you find damaged components or broken, bent, pushed out, or corroded connector’s pins during the inspection for the P1AC0 fault code, you should visually inspect the related wiring harness and connectors. This will help you identify the root cause of the problem. Check for any damaged components and look for broken, bent, pushed out, or corroded connector’s pins. Once you have identified the issue, you can take the necessary steps to fix it.

p1ac0 error fault code explained

If your engine light is on, it may be due to a faulty StarterGenerator Control Module Cooling Fan Relay.

Check the wiring harness and connectors for damage, and inspect the relay circuit for poor electrical connection. Look for broken, bent, pushed out, or corroded connector’s pins.

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