P2123 2018 Chevrolet Silverado Code - Accelerator Pedal Position Sensor 1 Circuit High Voltage
Quick Answer
The Accelerator Pedal Assembly contains 2 Accelerator Pedal Position (APP) sensors. Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position 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
- P2123 2018 Chevrolet Silverado indicates Accelerator Pedal Position Sensor 1 Circuit High Voltage.
- Common causes
- Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position 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 P2123 2018 Chevrolet Silverado Description
Both the APP sensors 1 and 2 signal percentages increase as the pedal is depressed, from approximately 0 percent at rest to above 95 percent when fully depressed.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the APP sensor 1 voltage is greater than 4.75 V for less than 1 s.
What are the Possible Causes of the DTC P2123 2018 Chevrolet Silverado?
- Faulty Accelerator Pedal Position Sensor
- Accelerator Pedal Position Sensor harness is open or shorted
- Accelerator Pedal Position Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2123 2018 Chevrolet Silverado?
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 P2123 2018 Chevrolet Silverado 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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Frequently Asked Questions about P2123 2018 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P2123 in a 2018 Chevrolet Silverado?
- Common symptoms include reduced engine power, hesitation or stalling when accelerating, and the illumination of the check engine light.
2. What does the OBDII code P2123 in a 2018 Chevrolet Silverado indicate?
- This code indicates a high voltage condition in the circuit of Accelerator Pedal Position Sensor 1.
3. What are the possible causes of OBDII code P2123 in a 2018 Chevrolet Silverado?
- Possible causes include a faulty accelerator pedal position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.
4. How can I diagnose the cause of OBDII code P2123 in my 2018 Chevrolet Silverado?
- Diagnosis typically involves checking the wiring and connectors for damage, testing the accelerator pedal position sensor, and scanning the vehicle's computer for additional fault codes.
5. Can I continue driving my 2018 Chevrolet Silverado with OBDII code P2123?
- It is not recommended to continue driving with this code present, as it can lead to poor vehicle performance and potential safety hazards.
6. How can I repair OBDII code P2123 in my 2018 Chevrolet Silverado?
- Repair may involve replacing the Accelerator Pedal Position Sensor 1, repairing damaged wiring or connectors, or reprogramming the engine control module.
7. Are there any DIY tips for fixing OBDII code P2123 in a 2018 Chevrolet Silverado?
- DIY enthusiasts can start by inspecting the sensor wiring and connectors for any visible damage before considering sensor replacement or seeking professional help.
8. Will resetting the check engine light clear OBDII code P2123 in my 2018 Chevrolet Silverado?
- Resetting the check engine light may temporarily clear the code, but it is essential to diagnose and address the underlying issue to prevent its recurrence.
9. How much does it typically cost to repair OBDII code P2123 in a 2018 Chevrolet Silverado?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
10. Can a mechanic easily fix OBDII code P2123 in my 2018 Chevrolet Silverado?
- A qualified mechanic with experience in diagnosing and repairing sensor-related issues should be able to efficiently address OBDII code P2123 in your vehicle.
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