P1543 Code - Throttle Actuation Potentiometer Signal Too Low
Quick Answer
P1543 indicates Throttle Actuation Potentiometer Signal Too Low. Common causes include Faulty Throttle Valve Control Module, Faulty Throttle Actuator, Throttle Actuator harness is open or shorted. 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
- P1543 indicates Throttle Actuation Potentiometer Signal Too Low.
- Common causes
- Common causes include Faulty Throttle Valve Control Module, Faulty Throttle Actuator, Throttle Actuator harness is open or shorted.
- 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 P1543 Description
What are the Possible Causes of the DTC P1543?
- Faulty Throttle Valve Control Module
- Faulty Throttle Actuator
- Throttle Actuator harness is open or shorted
- Throttle Actuator circuit poor electrical connection
How to Fix the DTC P1543?
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 P1543 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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Need Help with the Code?
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Information for Specific Makes
- P1543 Audi — Throttle Actuation Potentiometer Signal Too Low
- P1543 BMW — Pedal Position Sensor
- P1543 Buick — A/C System Performance
- P1543 Cadillac — A/C System Performance
- P1543 Chevrolet — A/C System Performance
- P1543 GMC — A/C System Performance
- P1543 Hyundai — Brake Switch Signal Fault
- P1543 MINI — Pedal Position Sensor
- P1543 Mitsubishi — DOR Radiator Tampering Monitor Temperature Check After Thermostat Open
- P1543 Volkswagen — Throttle Actuation Potentiometer Signal Too Low
Frequently Asked Questions about P1543 Code
No Frequently Asked Questions about P1543 Code found.
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