P0122 Honda Code - Throttle Position Sensor 'A' Circuit Low Voltage
Quick Answer
The electronic throttle control system controls the throttle valve opening. Common causes include Faulty Throttle Body, Throttle Body harness is open or shorted, Throttle Body circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0122 Honda indicates Throttle Position Sensor 'A' Circuit Low Voltage.
- Common causes
- Common causes include Faulty Throttle Body, Throttle Body harness is open or shorted, Throttle Body circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0122 Honda Description
What are the Possible Causes of the DTC P0122 Honda?
- Faulty Throttle Body
- Throttle Body harness is open or shorted
- Throttle Body circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P0122 Honda?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0122 Honda code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Honda Models
- P0122 1996 Honda Civic — Throttle Position Sensor 'A' Circuit Low Voltage
- P0122 1997 Honda Civic — Throttle Position Sensor 'A' Circuit Low Voltage
- P0122 1998 Honda Civic — Throttle Position Sensor 'A' Circuit Low Voltage
- P0122 1999 Honda Civic — Throttle Position Sensor 'A' Circuit Low Voltage
- P0122 2000 Honda Civic — Throttle Position Sensor 'A' Circuit Low Voltage
- P0122 2016 Honda CR-V — Throttle Position Sensor 'A' Circuit Low Voltage
- P0122 2017 Honda CR-V — Throttle Position Sensor 'A' Circuit Low Voltage
- P0122 2018 Honda CR-V — Throttle Position Sensor 'A' Circuit Low Voltage
- P0122 2019 Honda CR-V — Throttle Position Sensor 'A' Circuit Low Voltage
- P0122 2020 Honda CR-V — Throttle Position Sensor 'A' Circuit Low Voltage
- P0122 2021 Honda CR-V — Throttle Position Sensor 'A' Circuit Low Voltage
Frequently Asked Questions about P0122 Honda Code
1. What are the common symptoms of OBDII code P0122 in a Honda related to the Throttle Position Sensor 'A' Circuit Low Voltage?
The common symptoms include issues with acceleration, poor engine performance, stalling, and difficulty maintaining a steady idle.
2. What are the possible causes of the P0122 OBDII code in a Honda?
The P0122 code in a Honda is often caused by a faulty throttle position sensor, damaged wiring or connectors, or a malfunctioning Engine Control Module (ECM).
3. How can I diagnose the P0122 code related to the Throttle Position Sensor in my Honda?
To diagnose the P0122 code, you can use an OBDII scanner to read the code, visually inspect the throttle position sensor and its wiring, and perform testing to check the sensor's voltage output.
4. Can a faulty throttle position sensor cause the P0122 OBDII code in a Honda?
Yes, a faulty throttle position sensor is a common cause of the P0122 code, as it can send incorrect voltage signals to the ECM, indicating low voltage in the 'A' circuit.
5. How can I repair the Throttle Position Sensor 'A' Circuit Low Voltage issue in my Honda?
Repairing the P0122 code may involve replacing the throttle position sensor, repairing damaged wiring or connectors, or resetting the ECM to clear the code.
6. Is it safe to continue driving my Honda with the P0122 OBDII code?
It is not recommended to continue driving your Honda with the P0122 code, as it can lead to further engine issues and potential safety hazards. It's best to address the problem promptly.
7. Can a dirty throttle body cause the P0122 code in a Honda?
While a dirty throttle body can affect the performance of the throttle position sensor, it is not a direct cause of the P0122 code. However, cleaning the throttle body can be part of regular maintenance to prevent sensor issues.
8. Are there any DIY tips for fixing the P0122 code in a Honda?
DIY tips for fixing the P0122 code include checking and cleaning the throttle position sensor, inspecting the wiring for damage, and ensuring proper connections before considering sensor replacement.
9. Will resetting the ECM clear the P0122 OBDII code in my Honda?
Resetting the ECM may temporarily clear the P0122 code, but if the underlying issue, such as a faulty throttle position sensor, is not addressed, the code is likely to reappear after driving the vehicle.
10. How much does it typically cost to repair the Throttle Position Sensor 'A' Circuit Low Voltage issue in a Honda?
The cost of repairing the P0122 code in a Honda can vary depending on the root cause of the problem. Replacement of the throttle position sensor or repairing wiring issues can range from $100 to $300, including parts and labor.
Discuss the causes and fixes for P0122 Honda OBDII Code
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Looks like you have a problem with the Throttle Pedal Wire, what model and year is your vehicle? What engine codes do you have?
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