P0122 2000 Honda Civic Code - Throttle Position Sensor 'A' Circuit Low Voltage
Quick Answer
The Throttle Pedal Position (TPP) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor 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 2000 Honda Civic indicates Throttle Position Sensor 'A' Circuit Low Voltage.
- Common causes
- Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor 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 2000 Honda Civic Description
Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.
What are the Possible Causes of the DTC P0122 2000 Honda Civic?
- Faulty throttle position sensor
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
How to Fix the DTC P0122 2000 Honda Civic?
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 2000 Honda Civic 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 P0122 2000 Honda Civic Code
1. What does OBDII code P0122 on a 2000 Honda Civic mean?
The code P0122 indicates a low voltage condition in the Throttle Position Sensor 'A' circuit of the vehicle.
2. What are the common symptoms of a P0122 code in a 2000 Honda Civic?
Common symptoms include poor acceleration, rough idling, stalling, and in some cases, the vehicle may go into a "limp mode" with reduced power.
3. What are the potential causes of a P0122 code in a 2000 Honda Civic?
Possible causes include a faulty throttle position sensor (TPS), damaged wiring or connectors in the TPS circuit, a corroded sensor connection, or a malfunctioning Engine Control Module (ECM).
4. How can I diagnose the source of a P0122 code in my 2000 Honda Civic?
To diagnose a P0122 code, you can use a multimeter to test the TPS voltage, check the wiring and connectors for any damage, and inspect the TPS for any signs of wear or malfunction.
5. How can I repair a P0122 code on my 2000 Honda Civic?
Repairing a P0122 code may involve replacing the throttle position sensor, repairing damaged wiring or connectors, cleaning corroded connections, or reprogramming the ECM.
6. Can I drive my 2000 Honda Civic with a P0122 code?
It is not recommended to drive your vehicle with a P0122 code as it can lead to further damage and unsafe driving conditions. It's best to address the issue promptly.
7. How much does it typically cost to repair a P0122 code on a 2000 Honda Civic?
The cost of repairing a P0122 code can vary depending on the root cause of the issue. Replacing a throttle position sensor can cost around $50 to $200, while fixing wiring or connector issues may require additional labor costs.
8. Will a P0122 code reset itself on a 2000 Honda Civic?
In some cases, a P0122 code may reset itself after a few driving cycles if the underlying issue was temporary. However, it's advisable to diagnose and repair the problem to prevent it from recurring.
9. Is it possible to prevent a P0122 code from appearing on a 2000 Honda Civic?
Regular maintenance and inspections of the throttle position sensor, wiring, and connectors can help prevent a P0122 code from appearing. Keeping these components clean and in good condition is key.
10. Can a P0122 code affect the fuel efficiency of a 2000 Honda Civic?
Yes, a P0122 code can impact the fuel efficiency of your vehicle as it may cause improper fuel delivery and affect the engine's performance, leading to decreased miles per gallon.
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