P0123 2006 Toyota Highlander Code - Throttle Position Sensor/Switch 'A' Circuit High Input
Quick Answer
The Throttle Position Sensor (TPS) 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
- P0123 2006 Toyota Highlander indicates Throttle Position Sensor/Switch 'A' Circuit High Input.
- 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 P0123 2006 Toyota Highlander 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 P0123 2006 Toyota Highlander?
- Faulty throttle position sensor
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
How to Fix the DTC P0123 2006 Toyota Highlander?
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 P0123 2006 Toyota Highlander 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 P0123 2006 Toyota Highlander Code
1. What are the common symptoms of OBDII code P0123 in a 2006 Toyota Highlander?
- Common symptoms include issues with acceleration, rough idling, stalling, and a decrease in fuel efficiency.
2. What does the OBDII code P0123 'Throttle Position Sensor/Switch 'A' Circuit High Input' mean for a 2006 Toyota Highlander?
- This code indicates that the Engine Control Module (ECM) has detected a higher than normal voltage from the throttle position sensor.
3. What are the possible causes of OBDII code P0123 in a 2006 Toyota Highlander?
- Possible causes include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or issues with the ECM.
4. How can I diagnose the OBDII code P0123 in my 2006 Toyota Highlander?
- Diagnosis typically involves checking the throttle position sensor for proper operation, inspecting the wiring and connectors for damage, and using a scan tool to monitor sensor data.
5. Can I continue driving my 2006 Toyota Highlander with OBDII code P0123?
- It is not recommended to continue driving with this code as it can lead to further damage to the engine or other components.
6. How can I repair OBDII code P0123 in my 2006 Toyota Highlander?
- Repair options include replacing the throttle position sensor, repairing any damaged wiring or connectors, or reprogramming the ECM if needed.
7. Is it possible to reset the OBDII code P0123 in a 2006 Toyota Highlander without fixing the underlying issue?
- While you can clear the code with a scan tool, it will likely reappear if the root cause is not addressed.
8. How much does it cost to fix OBDII code P0123 in a 2006 Toyota Highlander?
- Repair costs can vary depending on the exact issue, but replacing a throttle position sensor or repairing wiring typically ranges from $100 to $300.
9. Can a DIY enthusiast repair OBDII code P0123 in a 2006 Toyota Highlander?
- Depending on the skill level and tools available, DIY enthusiasts may be able to diagnose and replace the throttle position sensor or repair wiring themselves.
10. How long does it take to repair OBDII code P0123 in a 2006 Toyota Highlander?
- The repair time can vary based on the exact cause and the expertise of the technician, but it typically takes 1-2 hours for a professional mechanic to address this issue.
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