P0123 2017 Chevrolet Silverado Code - Throttle Position Sensor Circuit High Voltage
Quick Answer
The P0123 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates a problem with the Throttle Position Sensor (TPS) circuit registering a high voltage. Common causes include Faulty Throttle Position Sensor (TPS), Damaged wiring or connectors in the TPS circuit, Corrosion or contamination in the TPS sensor. 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
- P0123 2017 Chevrolet Silverado indicates Throttle Position Sensor Circuit High Voltage.
- Common causes
- Common causes include Faulty Throttle Position Sensor (TPS), Damaged wiring or connectors in the TPS circuit, Corrosion or contamination in the TPS sensor.
- 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 P0123 2017 Chevrolet Silverado Description
The P0123 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates a problem with the Throttle Position Sensor (TPS) circuit registering a high voltage. The TPS is a crucial component of the vehicle's electronic throttle control system, responsible for monitoring the position of the throttle pedal and sending this information to the engine control module (ECM). When the TPS circuit detects a higher voltage than expected, it can lead to various performance issues and potential long-term effects if not addressed promptly.
Common Causes of P0123 2017 Chevrolet Silverado
- Faulty Throttle Position Sensor (TPS)
- Damaged wiring or connectors in the TPS circuit
- Corrosion or contamination in the TPS sensor
- Malfunctioning Engine Control Module (ECM)
- Electrical issues such as a short circuit or voltage spikes
Symptoms of P0123 2017 Chevrolet Silverado
- Erratic throttle response
- Poor fuel efficiency
- Hesitation or stalling during acceleration
- Rough idling
- Decreased power output
How to Fix P0123 2017 Chevrolet Silverado
- Begin by performing a thorough inspection of the TPS sensor, wiring, and connectors for any visible damage or corrosion.
- Test the TPS sensor using a multimeter to check for proper voltage readings and signal continuity.
- If the TPS sensor is faulty, replace it with a new OEM or high-quality aftermarket sensor.
- Clear the DTC from the ECM using a scan tool and perform a test drive to ensure the issue has been resolved.
- If the problem persists, further diagnostics may be required to identify any underlying electrical issues or ECM malfunctions.
Cost to Fix P0123 2017 Chevrolet Silverado
The typical repair costs for addressing a P0123 code on a 2017 Chevrolet Silverado can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It is essential to consider the diagnosis time and labor rates at auto repair shops, which can vary based on location, vehicle make and model, and engine type. Rates typically range between $80 and $150 per hour, with variations in metropolitan areas, dealerships, and independent shops. It is advisable to obtain local estimates for a more accurate cost assessment.
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