This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP
P0123: Throttle Position Sensor Circuit High Input
on 2020 Chevrolet SILVERADO 1500 PICKUP
Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners
Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.
📖 What Does P0123 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?
Symptoms
- • High idle
- • surging
- • poor fuel economy
- • engine racing
- • difficulty controlling engine speed.
Common Causes
- • Faulty throttle position sensor
- • wiring short to power
- • poor sensor connections
- • throttle linkage problems.
How to Fix P0123 on 2020 Chevrolet SILVERADO 1500 PICKUP
Replace throttle position sensor, repair wiring shorts to power, check throttle linkage, clean connections.
Need Maintenance Info for Your SILVERADO 1500 PICKUP?
Get oil capacity, filter specs, and torque settings for your specific 2020 Chevrolet SILVERADO 1500 PICKUP.
View 2020 Chevrolet SILVERADO 1500 PICKUP SpecsParts for 2020 Chevrolet SILVERADO 1500 PICKUP
Essential Tool
OBD2 Scanner
Read & clear codes on your 2020 Chevrolet SILVERADO 1500 PICKUP
Shop Scanners ↗Related Diagnostic Codes
Other codes that may appear with P0123
Throttle Position Sensor Circuit Malfunction
Throttle Position Sensor Circuit Range/Performance Problem
Throttle Position Sensor Circuit Low Input
P0124: Fuel Pressure Regulator Circuit Malfunction
P0125: Fuel Pressure Regulator Circuit Malfunction
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system