P0328 Scion Code - Knock Sensor 1 Circuit High Input
Quick Answer
The P0328 code for a Scion indicates that there is a high input signal detected in the circuit for Knock Sensor 1. Common causes include Faulty knock sensor, Damaged wiring or connectors in the knock sensor circuit, Corrosion or poor connections in the electrical system. 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
- P0328 Scion indicates Knock Sensor 1 Circuit High Input.
- Common causes
- Common causes include Faulty knock sensor, Damaged wiring or connectors in the knock sensor circuit, Corrosion or poor connections in the electrical system.
- 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 P0328 Scion Description
The P0328 code for a Scion indicates that there is a high input signal detected in the circuit for Knock Sensor 1. The knock sensor is responsible for detecting unusual vibrations in the engine caused by pre-ignition or detonation, also known as knocking. When the knock sensor detects these abnormal vibrations, it sends a signal to the engine control module (ECM) to adjust the ignition timing to prevent engine damage. A high input signal from the knock sensor could indicate a problem with the sensor itself, the wiring, or the ECM.
Common Causes of P0328 Scion
- Faulty knock sensor
- Damaged wiring or connectors in the knock sensor circuit
- Corrosion or poor connections in the electrical system
- Issues with the ECM or engine control unit
- Engine overheating causing pre-ignition or detonation
Symptoms of P0328 Scion
- Decreased fuel efficiency
- Engine misfires or rough idling
- Engine knocking or pinging noises
- Loss of power or acceleration
- Illumination of the check engine light
How to Fix P0328 Scion
- Diagnose the issue by checking the knock sensor circuit for any visible damage or corrosion.
- Test the knock sensor using a multimeter to ensure it is functioning properly.
- Check the wiring and connectors for any damage and repair or replace as necessary.
- Clear the diagnostic trouble codes and reset the ECM to see if the code returns.
- If the issue persists, consider replacing the knock sensor or seeking professional assistance for further diagnosis.
Cost to Fix P0328 Scion
The cost of repairing a P0328 code for a Scion can vary depending on the specific issue causing the high input signal in the knock sensor circuit. On average, the cost of replacing a knock sensor and addressing related wiring issues can range from $200 to $500, including parts and labor. Additional diagnostic time and labor rates at auto repair shops should be factored in, with rates typically ranging from $80 to $150 per hour. It is recommended to consult with a professional mechanic for an accurate cost estimate based on the specific vehicle make and model.
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Information for Specific Scion Models
- P0328 2005 Scion xB — Knock Sensor 1 Circuit High Input
- P0328 2006 Scion xB — Knock Sensor 1 Circuit High Input
- P0328 2007 Scion xB — Knock Sensor 1 Circuit High Input
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