P2123 2010 Honda Accord Code - Accelerator Pedal Position Sensor 'A' Throttle Position Sensor 'D' Circuit High Voltage
Quick Answer
Accelerator Pedal Position (APP) sensor A is a part of the Electronic Throttle Control System (ETCS), and it is used to convert the position of the accelerator pedal into electrical signals. Common causes include Faulty Accelerator Pedal Position, Accelerator Pedal Position harness is open or shorted, Accelerator Pedal Position 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
- P2123 2010 Honda Accord indicates Accelerator Pedal Position Sensor 'A' Throttle Position Sensor 'D' Circuit High Voltage.
- Common causes
- Common causes include Faulty Accelerator Pedal Position, Accelerator Pedal Position harness is open or shorted, Accelerator Pedal Position 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 P2123 2010 Honda Accord Description
What are the Possible Causes of the DTC P2123 2010 Honda Accord?
- Faulty Accelerator Pedal Position
- Accelerator Pedal Position harness is open or shorted
- Accelerator Pedal Position circuit poor electrical connection
- ECM
How to Fix the DTC P2123 2010 Honda Accord?
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 P2123 2010 Honda Accord 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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Frequently Asked Questions about P2123 2010 Honda Accord Code
1. What does the OBDII code P2123 indicate on a 2010 Honda Accord?
The code P2123 indicates that the Accelerator Pedal Position Sensor 'A' Throttle Position Sensor 'D' Circuit has detected a higher than normal voltage. This suggests a potential issue with the accelerator pedal position sensor or its circuit.
2. What are common symptoms of the P2123 code in a 2010 Honda Accord?
Common symptoms include erratic or unresponsive throttle response, engine stalling or hesitating, and the check engine light turning on. The vehicle may also enter a limp mode to prevent further damage.
3. What causes the P2123 code to be triggered in a 2010 Honda Accord?
Causes can include a faulty accelerator pedal position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module (ECM).
4. How can I diagnose the P2123 code on my 2010 Honda Accord?
Diagnosis should start with a visual inspection of the accelerator pedal position sensor and associated wiring for any obvious signs of damage or disconnection. Use an OBDII scanner to check for additional codes that might indicate related issues, and consider using a multimeter to verify the sensor's voltage output.
5. What steps should be taken to repair the issue causing the P2123 code in a 2010 Honda Accord?
Repairs may involve replacing the faulty accelerator pedal position sensor, repairing or replacing damaged wiring, or in some cases, reprogramming or replacing the engine control module.
6. Is it safe to drive my 2010 Honda Accord with the P2123 code?
Driving with this code is not recommended as it can lead to unpredictable vehicle behavior, such as sudden stalling or reduced engine power, which can compromise your safety and that of others on the road.
7. Can the P2123 code affect the fuel economy of my 2010 Honda Accord?
Yes, this code can affect the fuel economy. Issues with the throttle position sensor can lead to improper air-fuel mixture and engine performance, which in turn can reduce fuel efficiency.
8. What tools are required to diagnose and repair the P2123 code in a 2010 Honda Accord?
Tools needed may include an OBDII scanner, a multimeter for electrical testing, and basic hand tools for accessing and replacing components.
9. Could the P2123 code be triggered by an electrical short in the 2010 Honda Accord?
Yes, an electrical short in the circuit of the accelerator pedal position sensor can trigger this code. Inspecting and repairing any short circuits or damaged insulation on the wiring is crucial.
10. How often do accelerator pedal position sensors fail, causing the P2123 code?
While not exceedingly common, failures can occur due to wear and tear or damage from environmental factors like moisture or heat. Regular vehicle maintenance and inspections can help catch and address issues before they lead to sensor failure.
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