Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a sensor in your car's engine is detecting unusual vibrations. It's like when you hear a strange noise and think something might be wrong.
The engine control module (ECM) has detected a high voltage signal from the knock sensor circuit on bank 2, sensor 3.
The knock sensor is responsible for detecting vibrations caused by engine knocking or pinging. When the ECM receives a high voltage signal from this sensor, it indicates that the sensor may be malfunctioning or there is an issue with the circuit.
• Check Engine Light is on
• Poor engine performance
• Increased fuel consumption
• Faulty knock sensor
• Wiring issues such as a short to power
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the knock sensor for proper operation.
• Replace the faulty knock sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $400
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Regular maintenance checks
• Ensure proper fuel quality
• Avoid aggressive driving
Sensor Issue
• Have a professional mechanic inspect the vehicle.
• Avoid driving aggressively until the issue is resolved.
Check your vehicle's warranty for coverage on sensors and related components.
This code has been associated with sensor failures in certain models, often due to wiring issues.
Moderate – It is important to address this issue to prevent potential engine damage.
Ignoring this code may lead to increased emissions and potential engine damage.
• Engine at normal operating temperature
• Vehicle in a quiet environment to better detect engine noises
The knock sensor is typically located on the engine block, cylinder head, or intake manifold.
Q: What does a knock sensor do?
A: A knock sensor detects engine knocking or pinging, which can damage the engine.
Q: Can I drive with a P13D1 code?
A: It's not recommended as it can lead to engine damage over time.
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