The automobile fault code P1658 indicates a problem with the Electronic Throttle Control System (ETCS) Relay. Symptoms may include issues with the throttle response or engine performance.

The cause could be a faulty ETCS relay, an open or shorted relay harness, a poor electrical connection in the relay circuit, or a faulty Powertrain Control Module (PCM). To fix the issue, visually inspect the wiring harness and connectors for any damage.

Check for broken, bent, pushed out, or corroded pins in the connectors. The repair time for this issue is estimated to be around 1.0 hour.

To interpret the fault code, check the “Possible Causes” listed above and perform the necessary inspections and repairs.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level6.67 (Out of 10)

Experiencing engine misfires, poor acceleration, and stalling?

Check out the symptoms of fault code P1658 below.

  • The symptoms of automobile fault code P1658 may include: engine misfires, rough idling, reduced power, hesitation or stumbling during acceleration, poor fuel efficiency, and illuminated check engine light.

The automobile fault code p1658 can be caused by a faulty ETCS relay, an open or shorted ETCS relay harness, a poor electrical connection in the ETCS relay circuit, or a faulty PCM.

  • The fault code P1658 can be caused by a faulty Electronic Throttle Control System (ETCS) Relay, an open or shorted Electronic Throttle Control System Relay harness, a poor electrical connection in the Electronic Throttle Control System Relay circuit, or a faulty Powertrain Control Module (PCM).

To fix the p1658 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P1658, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p1658 include the estimated repair time of 1.0 hour and the typical hourly rate charged by auto repair shops, which ranges between $75 and $150.

When you see the Engine Light ON or the Service Engine Soon Warning Light, it could be due to the fault code P1658. This code indicates a problem with the electronic throttle control system. It means that there is a malfunction in the throttle actuator control module.

This module is responsible for controlling the opening and closing of the throttle valve, which regulates the airflow into the engine.

When this code appears, it is important to address it promptly to ensure proper engine performance and avoid potential damage.

What are the possible causes of fault code P1658 in an automobile?

The fault code P1658 in an automobile can be caused by a faulty Electronic Throttle Control System (ETCS) Relay, an open or shorted ETCS Relay harness, a poor electrical connection in the ETCS Relay circuit, or a faulty Powertrain Control Module (PCM). To fix this issue, visually inspect the wiring harness and connectors, checking for any damage or broken, bent, pushed out, or corroded pins in the connectors. Additionally, refer to the possible causes mentioned above for further troubleshooting.

How can I visually inspect the wiring harness and connectors to fix fault code P1658?

To fix fault code P1658, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check if there are any broken, bent, pushed out, or corroded pins in the connectors. This can help identify if there is a faulty Electronic Throttle Control System (ETCS) Relay or if there is an open or shorted circuit in the ETCS Relay harness. Additionally, check for any poor electrical connections in the ETCS Relay circuit. Make sure to address any issues found during the inspection to resolve the fault code.

What should I look for when checking for damaged components and connector pins to resolve fault code P1658?

To resolve fault code P1658, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. This could indicate a faulty Electronic Throttle Control System (ETCS) Relay or an open or shorted relay harness. Additionally, ensure there is no poor electrical connection in the ETCS Relay circuit. Finally, check the Powertrain Control Module (PCM) for any faults.

p1658 error fault code explained

To fix the p1658 fault code, start by visually inspecting the wiring harness and connectors.

Look for any damage or corrosion.

Check the Electronic Throttle Control System (ETCS) Relay and the Powertrain Control Module (PCM) for faults.

Make sure all connector pins are intact.

Address any issues found.

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