P1126 Infiniti 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 Faulty 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 Infiniti indicates Throttle Control Motor Relay Circuit Open.
- Common causes
- Common causes include Faulty 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 Infiniti Description
What are the Possible Causes of the DTC P1126 Infiniti?
- Faulty 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 Infiniti?
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 Infiniti 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.
Need more information about the P1126 Infiniti code?
Need more information on how to fix the P1126 Infiniti code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1126 Infiniti code diagnosed by a professional: Find a repair shop in your area
Information for Specific Infiniti Models
- P1126 2000 Infiniti G20 — Thermostat Function
- P1126 2001 Infiniti G20 — Thermostat Function
- P1126 2002 Infiniti G20 — Thermostat Function
- P1126 2003 Infiniti G35 — Throttle Control Motor Relay Circuit Open
- P1126 2004 Infiniti G35 — Throttle Control Motor Relay Circuit Open
- P1126 2005 Infiniti G35 — Throttle Control Motor Relay Circuit Open
- P1126 2000 Infiniti I30 — Thermostat Function
- P1126 2001 Infiniti I30 — Thermostat Function
Frequently Asked Questions about P1126 Infiniti Code
1. What does the OBDII code P1126 mean on an Infiniti?
The P1126 code indicates an issue with the throttle control motor relay circuit, specifically an open circuit in the relay.
2. What are the common symptoms of code P1126 in an Infiniti?
Symptoms may include reduced engine performance, lack of throttle response, the Check Engine Light turning on, and possible stalling.
3. What causes the P1126 code on an Infiniti?
Common causes include a faulty throttle control motor relay, damaged wiring or connectors in the circuit, or an issue with the ECM (engine control module).
4. Can a dirty throttle body cause code P1126 on an Infiniti?
No, a dirty throttle body would not directly trigger a P1126 code, as it specifically relates to the throttle control motor relay circuit.
5. How do you diagnose the P1126 code on an Infiniti?
Diagnosis involves inspecting the throttle control motor relay, checking the wiring and connectors for damage, and testing the relay for proper operation.
6. Can a bad throttle control motor trigger the P1126 code on an Infiniti?
While P1126 is related to the relay circuit, a failing throttle control motor could indirectly affect the relay's performance and trigger the code.
7. Is it safe to drive an Infiniti with the P1126 code?
Driving with this code can be risky as it may cause throttle performance issues, which could lead to unsafe driving conditions or stalling.
8. How do you fix the P1126 code on an Infiniti?
Repairs may involve replacing the faulty throttle control motor relay, repairing or replacing damaged wiring, or addressing issues in the ECM.
9. How much does it cost to fix the P1126 code on an Infiniti?
The cost will vary depending on the repair needed, but replacing the throttle control motor relay typically costs between $50 and $150, plus labor.
10. Can a DIYer fix the P1126 code on an Infiniti?
Yes, if the issue is a simple relay replacement or wiring repair, a DIYer with basic tools and knowledge can potentially fix it. However, advanced electrical diagnostics may require professional assistance.
Discuss the causes and fixes for P1126 Infiniti OBDII Code
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
