P1123 Lincoln Code - Throttle Position Sensor Circuit Intermittent High Voltage
Quick Answer
The P1123 diagnostic trouble code (DTC) for Lincoln vehicles indicates an issue with the Throttle Position Sensor (TPS) circuit having intermittent high voltage. Common causes include Faulty Throttle Position Sensor, Wiring or connector issues in the TPS circuit, ECM software or hardware problems. 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
- P1123 Lincoln indicates Throttle Position Sensor Circuit Intermittent High Voltage.
- Common causes
- Common causes include Faulty Throttle Position Sensor, Wiring or connector issues in the TPS circuit, ECM software or hardware problems.
- 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.
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Code P1123 Lincoln Description
The P1123 diagnostic trouble code (DTC) for Lincoln vehicles indicates an issue with the Throttle Position Sensor (TPS) circuit having intermittent high voltage. The TPS is a crucial component in the vehicle's engine management system, as it monitors the position of the throttle pedal and sends this information to the engine control module (ECM). This data is used by the ECM to determine the correct air-fuel mixture for optimal engine performance.
Common Causes of P1123 Lincoln
- Faulty Throttle Position Sensor
- Wiring or connector issues in the TPS circuit
- ECM software or hardware problems
- Intermittent electrical issues
- Mechanical issues affecting the TPS function
Symptoms of P1123 Lincoln
- Rough idling
- Hesitation or lack of response during acceleration
- Reduced fuel efficiency
- Engine stalling
- Check Engine Light illuminated on the dashboard
How to Fix P1123 Lincoln
- Begin by diagnosing the issue using a diagnostic scanner to retrieve the specific trouble code and identify the root cause of the problem.
- Inspect the TPS wiring and connectors for any signs of damage, corrosion, or loose connections. Repair or replace as needed.
- Test the Throttle Position Sensor using a multimeter to ensure it is functioning correctly. Replace the sensor if it is out of spec.
- Clear the trouble code from the ECM's memory and test drive the vehicle to verify that the issue has been resolved.
- If the problem persists, further diagnosis may be needed to pinpoint the exact cause of the high voltage readings in the TPS circuit.
Cost to Fix P1123 Lincoln
The cost of repairing a P1123 code in a Lincoln vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, replacing a faulty Throttle Position Sensor can cost between $100 and $200 for the part alone. Labor costs at an auto repair shop typically range from $80 to $150 per hour, with the total repair bill potentially amounting to a few hundred dollars. Additional costs for diagnostic testing, wiring repairs, or ECM reprogramming may also apply. It is advisable to consult with a certified mechanic or dealership for a more accurate cost estimate based on your vehicle's make and model.
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