Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means the car's computer is having trouble checking a part that listens for knocking sounds in the engine.
The engine control module (ECM) is unable to perform a self-test on the knock sensor for Bank 1.
The P1382 code indicates that the ECM has detected an issue during its self-test routine with the knock control test pulse on Bank 1. This involves the ECM's ability to send a test signal to the knock sensor to ensure it is functioning correctly. If the sensor does not respond as expected, the ECM triggers this code.
• Check Engine Light is on
• Possible engine knocking
• Reduced engine performance
• Faulty knock sensor
• Wiring issues to the knock sensor
• Defective ECM
ECM: Engine Control Module
Knock Sensor: A device that detects engine knocking or pinging
• Use an OBD-II scanner to verify the code.
• Inspect the knock sensor and its wiring for damage.
• Test the knock sensor's functionality with a multimeter.
• Replace the knock sensor if faulty.
• Repair or replace damaged wiring.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $500
Moderate
• Honda Accord
• Toyota Camry
• Nissan Altima
• Regular maintenance checks
• Ensure proper engine oil levels
• Avoid aggressive driving
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional.
• Avoid high speeds until the issue is resolved.
Check with the vehicle manufacturer for specific warranty details regarding the ECM and sensors.
This code has been more commonly reported in vehicles with high mileage or those that have been subjected to harsh driving conditions.
Moderate – While the car may still run, ignoring this issue can lead to engine damage over time.
Driving with a malfunctioning knock sensor can lead to engine damage and may affect emissions compliance.
• Engine at operating temperature
• Vehicle in a quiet environment to detect knock sounds
The knock sensor is typically located on the engine block, cylinder head, or intake manifold.
Q: What happens if I ignore this code?
A: Ignoring this code could result in engine damage due to undetected knocking.
Q: Can I drive my car with a P1382 code?
A: It's possible to drive, but it is not recommended as it can lead to further engine issues.
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