The P1A79 fault code in automobiles indicates a problem with the StarterGenerator Control Module (SGCM).

The most common symptom is the illumination of the Engine Light or Service Engine Soon Warning Light. The cause of this fault code could be a faulty SGCM, an open or shorted SGCM harness, or a poor electrical connection in the SGCM circuit. The importance of repairing this issue lies in the fact that it affects the starting and charging system of the vehicle.

The repair difficulty is moderate, and the fix involves visually inspecting the wiring harness and connectors, checking for damaged components, and looking for broken, bent, pushed out, or corroded connector’s pins. The repair time is estimated to be around 1.0 hour. To interpret the fault code, one needs to use an OBD-II scanner or code reader.

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 p1a79 fault code. Here are some symptoms to look out for:

  • The P1A79 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 stalling or hesitation during acceleration, and the battery may fail to charge properly.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle.

The P1A79 fault code in automobiles can be caused by various factors, including a faulty SGCM or poor electrical connection.

  • The automobile fault code P1A79 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 the possible fixes for the automobile fault code p1a79, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code P1A79, you need to check the possible causes listed above.
  • 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 P1A79 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 the P1A79 fault code will depend on the hourly rate charged by the repair shop and the estimated repair time required to fix the issue.

The P1A79 fault code is related to the StarterGenerator Control Module (SGCM) in automobiles. The SGCM monitors its internal fluid temperature sensors to control the SGCM coolant pump and SGCM cooling fan.

The fault code indicates that there is a low voltage in the circuit of the SGCM coolant temperature sensor 3.

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 P1A79 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 P1A79 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 P1A79 fault code in an automobile?

Ignoring the P1A79 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 and check for damaged components to avoid further damage.

p1a79 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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