If you see the engine light on or the service engine soon warning light, it could be due to a fault code P1A7A. 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 is 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)

If you notice the Engine Light ON or Service Engine Soon Warning Light, it could be a sign of the p1a7a fault code.

Here are the symptoms to look out for:

  • The P1A7A fault code in automobiles 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 P1A7A automobile fault code can be caused by a faulty SGCM, openshorted harness, or poor electrical connection.

  • The automobile fault code P1A7A 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 p1a7a, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code p1a7a, 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 P1A7A has an estimated repair time of 1.0 hour. The cost of fixing this fault code is influenced by the repair time.

Most auto repair shops charge between $75 and $150 per hour for their services.

Therefore, the fixing cost of P1A7A will range between $75 and $150, depending on the repair time required.

The P1A7A code is related to the StarterGenerator Control Module (SGCM). The SGCM monitors its internal fluid temperature sensors to control the SGCM coolant pump and SGCM cooling fan.

The code indicates that there is a high voltage in the StarterGenerator Control Module Coolant Temperature Sensor 3 Circuit. The internal fluid temperature sensors of the SGCM are thermistors and are not serviceable. The resistances of the sensors are high and the voltage signals are high when the internal fluid temperatures are cold.

When the internal fluid temperatures are hot, the resistances of the sensors are low and the voltage signals are low. The input parameters are not displayed on the scan tool.

What are the possible causes of the P1A7A fault code in an automobile?

If you see the engine light on or the service engine soon warning light, it could be due to the P1A7A 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 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 can be done by carefully examining the wiring harness and connectors for any signs of wear and tear. It is also important to check for any open or shorted circuits and poor electrical connections. By doing so, you can identify the root cause of the problem and take the necessary steps to fix it.

What are the consequences of ignoring the P1A7A fault code in an automobile?

Ignoring the P1A7A 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 address the issue immediately by visually inspecting the wiring harness and connectors, checking for damaged components, and looking for broken, bent, pushed out, or corroded connector’s pins.

p1a7a 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 pins.

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