P0123 2016 Chevrolet Silverado Code - Throttle Position Sensor Circuit High Voltage
Quick Answer
The P0123 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates a Throttle Position Sensor Circuit High Voltage. Common causes include Faulty throttle position sensor, Damaged or corroded wiring in the TPS circuit, Poor connection between the TPS and ECM. 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 2016 Chevrolet Silverado indicates Throttle Position Sensor Circuit High Voltage.
- Common causes
- Common causes include Faulty throttle position sensor, Damaged or corroded wiring in the TPS circuit, Poor connection between the TPS and ECM.
- 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 2016 Chevrolet Silverado Description
The P0123 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates a Throttle Position Sensor Circuit High Voltage. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic fuel injection system, responsible for monitoring the position of the throttle valve and sending this information to the engine control module (ECM). The ECM uses this data to determine the appropriate air-fuel mixture for optimal engine performance.
Common Causes of P0123 2016 Chevrolet Silverado
- Faulty throttle position sensor
- Damaged or corroded wiring in the TPS circuit
- Poor connection between the TPS and ECM
- ECM software issues
- Environmental factors such as moisture or debris affecting the TPS
Symptoms of P0123 2016 Chevrolet Silverado
- Rough idling
- Stalling
- Hesitation during acceleration
- Decreased fuel efficiency
- Engine misfires
How to Fix P0123 2016 Chevrolet Silverado
- Begin by diagnosing the issue using a scan tool to confirm the P0123 code and identify the specific cause.
- Inspect the throttle position sensor and its wiring for any signs of damage, corrosion, or poor connections. Replace the sensor if necessary.
- Clear the DTC from the ECM memory using the scan tool after making any repairs or replacements.
- Test drive the vehicle to ensure that the symptoms associated with the P0123 code have been resolved.
- If the issue persists, further diagnostics may be required to identify any underlying problems with the ECM or other related components.
Cost to Fix P0123 2016 Chevrolet Silverado
The typical repair costs for addressing a Throttle Position Sensor Circuit High Voltage issue can vary depending on the specific cause of the problem and the extent of repairs needed. In general, replacing a faulty throttle position sensor can cost between $100 and $200, including parts and labor. However, additional costs may apply if wiring repairs or ECM reprogramming are necessary. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. For a more accurate estimate, it's recommended to consult with a local auto repair shop.
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Frequently Asked Questions about P0123 2016 Chevrolet Silverado Code
What does OBDII code P0123 mean on a 2016 Chevrolet Silverado?
P0123 indicates that the Throttle Position Sensor (TPS) circuit is reporting a higher voltage than expected, suggesting a possible issue with the TPS or related components.
What are the common symptoms of code P0123 in a 2016 Chevrolet Silverado?
Symptoms may include poor acceleration, erratic idle, reduced engine performance, and the illumination of the Check Engine Light.
What causes code P0123 on a 2016 Chevrolet Silverado?
Common causes include a faulty throttle position sensor, damaged wiring or connectors in the TPS circuit, or a malfunctioning engine control module (ECM).
Can I drive my 2016 Chevrolet Silverado with code P0123?
It’s not recommended to drive the vehicle for extended periods with this code, as poor throttle response or reduced power could pose a safety risk.
How do you diagnose code P0123 in a 2016 Chevrolet Silverado?
Diagnosis involves using a scan tool to check TPS voltage readings, inspecting the sensor and its wiring for damage, and testing for proper ground and power at the TPS connector.
How is code P0123 fixed on a 2016 Chevrolet Silverado?
Repairs may include replacing the throttle position sensor, repairing damaged wiring or connectors, or reprogramming/replacing the ECM if necessary.
Is a throttle position sensor replacement expensive for a 2016 Chevrolet Silverado?
The cost can vary but typically ranges from $100 to $300, including parts and labor, depending on the repair shop and location.
Can a dirty throttle body cause code P0123 on a 2016 Chevrolet Silverado?
While less common, a dirty or sticking throttle body can sometimes cause abnormal sensor readings, which may trigger this code.
What tools are needed to troubleshoot code P0123 in a 2016 Chevrolet Silverado?
You’ll need an OBDII scan tool, a multimeter to check voltage and continuity, and possibly basic hand tools to access the TPS.
Can disconnecting the battery clear code P0123 on a 2016 Chevrolet Silverado?
Disconnecting the battery may temporarily clear the code, but it won’t resolve the underlying issue, and the code is likely to return.
Discuss the causes and fixes for P0123 2016 Chevrolet Silverado OBDII Code
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