P0122 2007 Toyota Highlander Code - Throttle Position Sensor/Switch 'A' Circuit Low Input
Quick Answer
The P0122 diagnostic trouble code (DTC) for a 2007 Toyota Highlander indicates a problem with the Throttle Position Sensor/Switch 'A' Circuit, specifically a low input signal. Common causes include Faulty throttle position sensor, Damaged or corroded wiring/connectors in the TPS circuit, Issues with the ECM receiving the TPS signal. 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 2007 Toyota Highlander indicates Throttle Position Sensor/Switch 'A' Circuit Low Input.
- Common causes
- Common causes include Faulty throttle position sensor, Damaged or corroded wiring/connectors in the TPS circuit, Issues with the ECM receiving the TPS signal.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0122 2007 Toyota Highlander Description
The P0122 diagnostic trouble code (DTC) for a 2007 Toyota Highlander indicates a problem with the Throttle Position Sensor/Switch 'A' Circuit, specifically a low input signal. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic fuel injection system, responsible for monitoring the position of the throttle valve and sending this information to the engine control module (ECM). The ECM uses this data to adjust fuel delivery and ignition timing, ensuring optimal engine performance and fuel efficiency.
Common Causes of P0122 2007 Toyota Highlander
- Faulty throttle position sensor.
- Damaged or corroded wiring/connectors in the TPS circuit.
- Issues with the ECM receiving the TPS signal.
- Mechanical issues with the throttle body affecting TPS operation.
- Environmental factors such as moisture or debris affecting TPS performance.
Symptoms of P0122 2007 Toyota Highlander
- Poor acceleration or hesitation when pressing the gas pedal.
- Rough idling or stalling when at a stop.
- Reduced fuel efficiency.
- Check Engine Light illuminated on the dashboard.
- Limited engine power or response to throttle input.
How to Fix P0122 2007 Toyota Highlander
- Begin by diagnosing the issue using a diagnostic scanner to retrieve the specific trouble code and confirm the TPS as the likely culprit.
- Inspect the TPS wiring and connectors for any damage, corrosion, or loose connections. Repair or replace as necessary.
- Test the TPS using a multimeter to check for proper voltage output at various throttle positions. Replace the TPS if it fails this test.
- Clear the trouble code from the ECM using the diagnostic scanner and reset the system to see if the issue persists.
- If the problem persists, further diagnostic tests may be required to identify any underlying issues with the ECM or throttle body.
Cost to Fix P0122 2007 Toyota Highlander
The typical repair costs for addressing a P0122 code on a 2007 Toyota Highlander can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the cost of a new throttle position sensor, wiring repairs, diagnostic time, and labor for the repair process. It is important to note that actual repair costs can vary based on factors such as location, vehicle make and model, and the extent of the damage. It is advisable to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your specific situation. Keep in mind that labor rates at auto repair shops can vary widely, with hourly rates typically ranging from $80 to $150.
When is the Code Detected?
Need more information about the P0122 2007 Toyota Highlander code?
Need more information on how to fix the P0122 2007 Toyota Highlander code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0122 2007 Toyota Highlander code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0122 2007 Toyota Highlander Code
1. What are the common symptoms of OBDII code P0122 on a 2007 Toyota Highlander?
The common symptoms of OBDII code P0122 on a 2007 Toyota Highlander include poor acceleration, stalling, rough idling, and potential issues with the vehicle's transmission shifting.
2. What are the possible causes of OBDII code P0122 on a 2007 Toyota Highlander?
The possible causes of OBDII code P0122 on a 2007 Toyota Highlander include a faulty throttle position sensor, damaged wiring or connectors related to the sensor, or issues with the vehicle's engine control module.
3. How can I diagnose the Throttle Position Sensor/Switch 'A' Circuit Low Input issue on my 2007 Toyota Highlander?
To diagnose the Throttle Position Sensor/Switch 'A' Circuit Low Input issue on your 2007 Toyota Highlander, you can use an OBDII scanner to read the trouble codes, inspect the throttle position sensor and its wiring for any visible damage, and perform a voltage test on the sensor.
4. Can I still drive my 2007 Toyota Highlander with OBDII code P0122 present?
It is not recommended to drive your 2007 Toyota Highlander with OBDII code P0122 present, as it can lead to poor engine performance and potential safety hazards. It is best to address the issue promptly.
5. How can I repair OBDII code P0122 on my 2007 Toyota Highlander?
To repair OBDII code P0122 on your 2007 Toyota Highlander, you may need to replace the throttle position sensor, repair any damaged wiring or connectors, or reset the engine control module to clear the trouble code.
6. Are there any DIY tips for fixing OBDII code P0122 on a 2007 Toyota Highlander?
While some aspects of diagnosing and repairing OBDII code P0122 may be DIY-friendly, it is recommended to seek professional help to ensure accurate diagnosis and proper repair to avoid further issues.
7. How much does it cost to repair OBDII code P0122 on a 2007 Toyota Highlander?
The cost to repair OBDII code P0122 on a 2007 Toyota Highlander can vary depending on the root cause of the issue, the cost of parts needed for repair, and labor charges. It is advisable to get a quote from a trusted mechanic.
8. Can a dirty throttle body cause OBDII code P0122 on a 2007 Toyota Highlander?
While a dirty throttle body can affect the performance of the throttle position sensor, it is not a common direct cause of OBDII code P0122. However, keeping the throttle body clean is important for overall engine health.
9. Will disconnecting the battery reset OBDII code P0122 on a 2007 Toyota Highlander?
Disconnecting the battery may temporarily clear the trouble code, but it is not a permanent solution. The underlying issue causing OBDII code P0122 needs to be diagnosed and repaired to prevent the code from reoccurring.
10. How urgent is it to address OBDII code P0122 on a 2007 Toyota Highlander?
It is important to address OBDII code P0122 on a 2007 Toyota Highlander promptly to prevent further damage to the vehicle's engine and ensure safe operation. Ignoring the issue can lead to more severe problems down the line.
Discuss the causes and fixes for P0122 2007 Toyota Highlander OBDII Code
Code P0122 2007 Toyota Highlander comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.