[SOLVED] P122B Code: Fix Intake Air Flow Valve Control Voltage Circuit!

The automobile fault code P122B indicates a problem with the Throttle Body Assembly.

Symptoms may include poor engine performance, reduced power, or difficulty starting the vehicle. The code is typically triggered by a faulty Throttle Body Assembly, an open or shorted harness, a poor electrical connection, or a faulty Engine Control Module (ECM).

To fix the issue, visually inspect the wiring harness and connectors for any damage. Look for broken, bent, pushed out, or corroded pins on the connectors. The repair time for this issue is estimated to be around 1.0 hour.

It is important to address this problem promptly to ensure optimal engine performance and avoid further damage.

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

Experiencing rough idling, reduced engine power, and stalling? Check out the symptoms of fault code P122B below.

  • The symptoms of the automobile fault code P122B include: engine misfires, reduced power and acceleration, rough idling, stalling or difficulty starting the engine, hesitation or jerking during acceleration, poor fuel efficiency, and illuminated check engine light.

The automobile fault code p122b can be caused by a faulty throttle body assembly, an open or shorted throttle body assembly harness, a poor electrical connection in the throttle body assembly circuit, or a faulty engine control module (ECM).

  • The fault code P122B can be caused by: a faulty throttle body assembly, an open or shorted throttle body assembly harness, a poor electrical connection in the throttle body assembly circuit, or a faulty engine control module (ECM).

To fix the automobile fault code p122b, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P122B, you need to 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.
  • 5.
  • Repairing this fault code is estimated to take approximately 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p122b are the estimated repair time of 1.0 hour and the typical auto repair shop charges of $75 to $150 per hour.

When you see the Engine Light ON or the Service Engine Soon Warning Light, it could be due to the fault code P122B.

This code indicates a problem with the throttle position sensor or the accelerator pedal position sensor. These sensors are responsible for monitoring the position of the throttle and the accelerator pedal, providing input to the engine control module (ECM). When the P122B fault code is triggered, it means that there is a discrepancy between the expected and actual position of either the throttle or the accelerator pedal.

This can result in various symptoms such as reduced engine power, hesitation or stalling, and even difficulty in starting the vehicle. It is important to address this issue promptly to avoid further damage to the engine and ensure optimal performance. To fix the P122B fault code, the first step is to inspect the wiring and connectors associated with the throttle position sensor and the accelerator pedal position sensor.

Any loose or damaged connections should be repaired or replaced. If the wiring and connectors are in good condition, the next step is to test the sensors themselves.

If either sensor is found to be faulty, it should be replaced with a new one. Finally, the ECM may need to be reprogrammed or reset to clear the fault code and restore normal operation. It is recommended to consult a professional mechanic or use a diagnostic tool to accurately diagnose and fix the P122B fault code.

What are the possible causes of the automobile fault code P122B?

The fault code P122B in an automobile can be caused by a few different factors. One possible cause is a faulty Throttle Body Assembly. It could also be due to an open or shorted Throttle Body Assembly harness, or a poor electrical connection in the Throttle Body Assembly circuit. Another potential cause is a faulty Engine Control Module (ECM). To fix this issue, it is recommended to visually inspect the wiring harness and connectors, checking for any damage or broken, bent, pushed out, or corroded pins in the connectors.

How can I visually inspect the wiring harness and connectors to fix the P122B fault code?

To fix the P122B fault code, 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 any issues with the Throttle Body Assembly harness or circuit, as well as any poor electrical connections. Don’t forget to also check for a faulty Throttle Body Assembly or Engine Control Module (ECM) as possible causes.

What should I look for when checking for damaged components and connector’s pins to resolve the P122B fault code?

To resolve the P122B fault code, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector’s pins. This can help identify any issues with the Throttle Body Assembly or its circuit. Additionally, check for a faulty Throttle Body Assembly, an open or shorted Throttle Body Assembly harness, or a poor electrical connection in the Throttle Body Assembly circuit.

p122b error fault code explained

To fix the P122B fault code, start by visually inspecting the wiring harness and connectors. Look for any damage or corrosion. Check the throttle body assembly for any issues.

If necessary, replace the faulty throttle body assembly or repair any poor electrical connections. Don’t forget to also check the Engine Control Module (ECM) for any faults.

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