[SOLVED] P1Aa2 Code: Overheated Starter/Generator Inverter – Quick Fix

If you see the engine light on or the service engine soon warning light, it could be due to a fault code P1AA2. 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 can affect the performance of your vehicle.

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

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

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If you notice the Engine Light ON or Service Engine Soon Warning Light, it could be a sign of p1aa2 fault code.

Here are the symptoms to look out for:

  • The P1AA2 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, rough idling, stalling, or difficulty starting the engine.
  • Additionally, the vehicle may experience a decrease in acceleration or a loss of power while driving.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe driving conditions.

The P1AA2 automobile fault code can be caused by a faulty SGCM, openshorted harness, or poor electrical connection.

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  • The automobile fault code P1AA2 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 Starter/Generator Control Module (SGCM) circuit can also trigger this fault code.

Below are the possible fixes for the automobile fault code p1aa2, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code p1aa2, 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 factors that influence the cost of fixing the automobile fault code P1AA2 are the estimated repair time and the hourly rate charged by the auto repair shop. The estimated repair time for this fault code is 1.0 hour. The cost of fixing the fault code will depend on the hourly rate charged by the auto repair shop, which is typically between $75 and $150 per hour.

Other factors that may influence the cost include the severity of the issue, the type of vehicle, and the availability of replacement parts.

The P1AA2 fault code indicates an over-temperature condition in the StarterGenerator Inverter Phase V. The Power Inverter Module (PIM) temperature sensors are used for overheat protection.

The thermistors are located on the control board, near the phase U or V power MOSFET. The StarterGenerator Control Module (SGCM) monitors the inverter temperature sensor for shorted low or high conditions. If the inverter phase V temperature sensor is shorted high, the P1AA2 fault code will be triggered.

What are the possible causes of the P1AA2 fault code in an automobile?

If you see the engine light on or the service engine soon warning light in your automobile, it could be due to the P1AA2 fault code. This code is 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 one visually inspect the wiring harness and connectors related to the Starter/Generator Control Module (SGCM)?

If the engine light is on due to a faulty Starter/Generator Control Module (SGCM), it is important to visually inspect the related wiring harness and connectors. Check for any damaged components and look for broken, bent, pushed out, or corroded connector’s pins. This could be caused by an open or shorted SGCM harness or a poor electrical connection in the SGCM circuit. To fix the issue, check the possible causes listed above and address any issues found during the visual inspection.

What are the consequences of ignoring the P1AA2 fault code in an automobile?

Ignoring the P1AA2 fault code in an automobile, which indicates a faulty Starter/Generator Control Module (SGCM), can lead to serious consequences. The engine light will remain on, and the vehicle may not start or may stall while driving. It is crucial to inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins to fix the issue.

p1aa2 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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