If you see the engine light on or the service engine soon warning light, it could be due to a fault code P1AAC. This code indicates a problem with the StarterGenerator Control Module (SGCM) or its related wiring harness and connectors. The cause could be a faulty SGCM, an open or shorted harness, or a poor electrical connection.

It’s important to address this issue promptly as it could affect the performance of your vehicle.

The repair time for this fault code is estimated at 1.0. To fix the problem, you should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

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 p1aac fault code.

Here are the symptoms to look out for:

  • The P1AAC 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, poor acceleration, rough idling, stalling, and decreased fuel efficiency.
  • Additionally, the vehicle may experience difficulty starting, and there may be a noticeable decrease in overall performance.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe driving conditions.

The P1AAC automobile fault code can be caused by various factors, including a faulty SGCM, open or shorted SGCM harness, and poor electrical connection in the SGCM circuit.

  • The automobile fault code P1AAC can be caused by a faulty Starter/Generator Control Module (SGCM).
  • It can also be caused by an open or shorted SGCM harness.
  • Additionally, a poor electrical connection in the SGCM circuit can also trigger this fault code.

Below are some possible fixes for the automobile fault code p1aac, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code p1aac, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for any 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 P1AAC has an estimated repair time of 1.0 hour. The cost of fixing this fault code varies between $75 and $150 per hour, depending on the auto repair shop. The cost of fixing this fault code is influenced by factors such as the severity of the issue, the complexity of the repair, and the availability of replacement parts.

It is important to get an accurate diagnosis of the issue before attempting any repairs to avoid unnecessary costs.

The P1AAC fault code indicates a problem with the StarterGenerator Control Module (SGCM) unit. The SGCM unit performs DCDC and DCAC electrical energy conversion and supports vehicle functions. The fault code specifically refers to a Phase V OpenShort Faul, which means there is an issue with the 3-phase AC power flow to the Starter Generator interface.

If this fault code is present, the Starter Generator Control will be disabled and the Starter Generator Inverter will not transfer or consume any power. The current value of Phase 1 will be bidirectional, with positive representing discharging the batteries and negative representing charging the batteries.

What are the possible causes of the P1AAC fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the P1AAC fault code. This code is usually caused by a faulty Starter/Generator Control Module (SGCM), an open or shorted SGCM harness, or a poor electrical connection in the SGCM circuit. 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.

How can I visually inspect the wiring harness and connectors related to the Starter/Generator Control Module (SGCM)?

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 (SGCM), an open or shorted SGCM harness, or a poor electrical connection in the SGCM circuit. To fix this issue, 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 are the steps to take if I find damaged components or broken, bent, pushed out, or corroded connector’s pins during the inspection?

If you find damaged components or broken, bent, pushed out, or corroded connector’s pins during the inspection, follow these steps. First, visually inspect the related wiring harness and connectors. Then, check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. Finally, fix the issue by addressing the “Possible Causes” listed above, such as a faulty Starter/Generator Control Module (SGCM), an open or shorted SGCM harness, or a poor electrical connection in the SGCM circuit.

p1aac error fault code explained

If your engine light is on, it could be due to a faulty StarterGenerator Control Module (SGCM), an open or shorted SGCM harness, or a poor electrical connection in the SGCM circuit.

To fix the issue, visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

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