P1231 Code - Throttle Position Sensor 1 and 2 Circuit
Quick Answer
P1231 indicates Throttle Position Sensor 1 and 2 Circuit. Common causes include Faulty Throttle Body, Throttle Body harness is open or shorted, Throttle Body 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
- P1231 indicates Throttle Position Sensor 1 and 2 Circuit.
- Common causes
- Common causes include Faulty Throttle Body, Throttle Body harness is open or shorted, Throttle Body 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 P1231 Description
What are the Possible Causes of the DTC P1231?
- Faulty Throttle Body
- Throttle Body harness is open or shorted
- Throttle Body poor electrical connection
How to Fix the DTC P1231?
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 P1231 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 P1231 code?
Need more information on how to fix the P1231 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1231 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1231 Audi — Injector Circuit Cylinder 7 Short To Ground
- P1231 Buick — Injector Circuit Cylinder 4 Intermittent
- P1231 Cadillac — Injector Circuit Cylinder 4 Intermittent
- P1231 Chevrolet — Injector Circuit Cylinder 4 Intermittent
- P1231 Ford — High Speed Fuel Pump Relay Activated
- P1231 GMC — Injector Circuit Cylinder 4 Intermittent
- P1231 Land Rover — High Speed Fuel Pump Relay Activated
- P1231 Lincoln — High Speed Fuel Pump Relay Activated
- P1231 Mercury — High Speed Fuel Pump Relay Activated
- P1231 Mitsubishi — Active Stability Control Plausibility
- P1231 Saab — Throttle Position Sensor 1 and 2 Circuit
- P1231 Suzuki — Fuel Pump Relay High Voltage
- P1231 Volkswagen — Injector Circuit Cylinder 7 Short To Ground
Frequently Asked Questions about P1231 Code
No Frequently Asked Questions about P1231 Code found.
Discuss the causes and fixes for P1231 OBDII Code
Code P1231 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.
