P1126 Code - Throttle Control Motor Relay Circuit Open
Quick Answer
Power supply for the throttle control motor is provided to the Engine Control Module (ECM) via throttle control motor relay. Common causes include Fualty Throttle Control Motor relay, Throttle Control Motor relay harness is open or shorted, Throttle Control Motor relay 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
- P1126 indicates Throttle Control Motor Relay Circuit Open.
- Common causes
- Common causes include Fualty Throttle Control Motor relay, Throttle Control Motor relay harness is open or shorted, Throttle Control Motor relay 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 P1126 Description
What are the Possible Causes of the DTC P1126?
- Fualty Throttle Control Motor relay
- Throttle Control Motor relay harness is open or shorted
- Throttle Control Motor relay circuit poor electrical connection
How to Fix the DTC P1126?
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 P1126 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 Makes
- P1126 Audi — Long Term Fuel Trim Adjustment Bank 2 System Too Lean
- P1126 Hyundai — Fuel Pressure Sensor 2
- P1126 Infiniti — Throttle Control Motor Relay Circuit Open
- P1126 Infiniti — Thermostat Function
- P1126 Lexus — Magnetic Clutch Circuit Malfunction
- P1126 Nissan — Throttle Control Motor Relay Circuit Open
- P1126 Nissan — Thermostat Function
- P1126 Toyota — Magnetic Clutch Circuit Malfunction
- P1126 Volkswagen — Long Term Fuel Trim Adjustment Bank 2 System Too Lean
Frequently Asked Questions about P1126 Code
1. What are the common symptoms of OBDII code P1126 (Throttle Control Motor Relay Circuit Open)?
When this code occurs, you may experience issues such as poor engine performance, reduced acceleration, and the vehicle going into a limp mode where it operates at reduced power.
2. What are the possible causes of OBDII code P1126?
The code P1126 typically indicates a problem with the throttle control motor relay circuit being open. Common causes include a faulty throttle control motor relay, damaged wiring or connectors in the circuit, or a malfunctioning throttle control motor.
3. How can I diagnose the cause of OBDII code P1126?
To diagnose the cause of OBDII code P1126, you may need to perform a thorough inspection of the throttle control motor relay, check the wiring and connectors for any damage, and test the throttle control motor for proper functioning using a multimeter.
4. Can I continue driving my vehicle with OBDII code P1126?
It is not recommended to continue driving your vehicle when OBDII code P1126 is present, as it can lead to further damage and potential safety hazards. It is best to address the underlying issue promptly.
5. How can I repair OBDII code P1126?
To repair OBDII code P1126, you may need to replace the faulty throttle control motor relay, repair any damaged wiring or connectors in the circuit, or replace the throttle control motor if it is found to be malfunctioning.
6. Will resetting the OBDII code P1126 clear the issue?
Resetting the OBDII code P1126 may temporarily clear the diagnostic trouble code, but the underlying issue causing the code will still need to be addressed to prevent it from reoccurring.
7. Is it possible to prevent OBDII code P1126 from happening?
While some causes of OBDII code P1126 may be related to wear and tear, regular maintenance checks on the throttle control system and electrical components can help prevent this issue from occurring.
8. Can a DIY enthusiast fix OBDII code P1126?
Depending on your experience and expertise with automotive repairs, a DIY enthusiast may be able to address OBDII code P1126 by following repair guides, using proper diagnostic tools, and ensuring safety precautions are taken.
9. How long does it typically take to repair OBDII code P1126?
The time needed to repair OBDII code P1126 can vary based on the specific cause of the issue and the complexity of the repair. It may take anywhere from a few hours to a day to complete the repair.
10. Should I seek professional help for OBDII code P1126?
If you are unsure about diagnosing or repairing OBDII code P1126, or if the issue persists after attempting DIY repairs, it is advisable to seek professional help from a certified mechanic or automotive technician.
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