P1221 Code - Throttle Position Sensor 1- 2 Correlation
Quick Answer
The Throttle Position (TP) Sensor is mounted on the throttle body of the Throttle Actuator Control (TAC) assembly. Common causes include Faulty Throttle Position (TP) Sensor, Throttle Position (TP) Sensor harness is open or shorted, Throttle Position (TP) 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
- P1221 indicates Throttle Position Sensor 1- 2 Correlation.
- Common causes
- Common causes include Faulty Throttle Position (TP) Sensor, Throttle Position (TP) Sensor harness is open or shorted, Throttle Position (TP) 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 P1221 Description
What are the Possible Causes of the DTC P1221?
- Faulty Throttle Position (TP) Sensor
- Throttle Position (TP) Sensor harness is open or shorted
- Throttle Position (TP) Sensor circuit poor electrical connection
How to Fix the DTC P1221?
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 P1221 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 P1221 code?
Need more information on how to fix the P1221 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1221 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1221 Audi — Cylinder Shut Off Exhaust Valves Short Circuit To Ground
- P1221 BMW — Pedal Position Sensor 2 Range/Performance Problem
- P1221 Buick — Throttle Position Sensor 1- 2 Correlation
- P1221 Cadillac — Throttle Position Sensor 1- 2 Correlation
- P1221 Chevrolet — Throttle Position Sensor 1- 2 Correlation
- P1221 Ford — Traction Control System Malfunction
- P1221 GMC — Throttle Position Sensor 1- 2 Correlation
- P1221 Isuzu — Throttle Position Sensor 1- 2 Correlation
- P1221 Lincoln — Traction Control System Malfunction
- P1221 MINI — Pedal Position Sensor 2 Range/Performance Problem
- P1221 Volkswagen — Cylinder Shut Off Exhaust Valves Short Circuit To Ground
Frequently Asked Questions about P1221 Code
1. What are common symptoms of OBDII code P1221 related to Throttle Position Sensor 1-2 Correlation?
The common symptoms include poor acceleration, rough idling, stalling, and difficulty maintaining a consistent speed.
2. What are the potential causes of OBDII code P1221 indicating Throttle Position Sensor 1-2 Correlation issue?
Possible causes include a faulty throttle position sensor, issues with the throttle body, wiring problems, or a malfunctioning Engine Control Module (ECM).
3. How can I diagnose the cause of OBDII code P1221 related to Throttle Position Sensor 1-2 Correlation?
Diagnosis typically involves checking the throttle position sensor readings using a scan tool, inspecting the throttle body for any obstructions, and testing the wiring for continuity and proper connections.
4. Can I drive my vehicle with OBDII code P1221 present?
It is not recommended to drive the vehicle with this code present, as it can lead to poor performance, potential stalling, and further damage to the engine components.
5. How can I repair OBDII code P1221 indicating Throttle Position Sensor 1-2 Correlation issue?
Repair may involve replacing the throttle position sensor, cleaning or replacing the throttle body, repairing any damaged wiring, or reprogramming the ECM.
6. Will OBDII code P1221 reset on its own after repairs are made?
After repairs are made, the code can be cleared using a scan tool. If the underlying issue is successfully resolved, the code should not reappear.
7. How critical is it to address OBDII code P1221 indicating Throttle Position Sensor 1-2 Correlation problem?
It is important to address this issue promptly, as it can affect the performance and drivability of the vehicle. Ignoring the problem may lead to further damage and safety concerns.
8. Can a DIY enthusiast fix OBDII code P1221 related to Throttle Position Sensor 1-2 Correlation?
Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair this issue. However, professional assistance is recommended for accurate diagnosis and proper repair.
9. Are there any preventive measures to avoid OBDII code P1221 in the future?
Regular maintenance, such as cleaning the throttle body, checking the throttle position sensor, and inspecting wiring connections, can help prevent issues that may trigger OBDII code P1221.
10. How long does it typically take to repair OBDII code P1221 associated with Throttle Position Sensor 1-2 Correlation?
The time required for repairs can vary depending on the exact cause of the issue and the extent of the repair needed. It is advisable to consult a professional mechanic for an accurate estimate of repair time.
Discuss the causes and fixes for P1221 OBDII Code
-
What model and year is your vehicle? do you have any other symptoms besides the P1221?
-
Hello!
My problem Mazda CX7 from 2008. with 2.3 petrol engine. The engine was remove from the car becose the engine need full general. After back in the car. But!! The engine is not started, just one moment runnig after the engine is stop.The fault code: P1221 I changed is the actuator valv the fault again. Is not change!
What is the problem?? This is the question.
Thanks for the help me....
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
