I have a 1996 Q45 with a code P0325 (knock sensor mulfunction). I had both knock sensors and the harness connecting the sensors to ECM replaced and erased the code.

The P0325 code indicates a problem with the Knock Sensor Circuit in Bank 1 of the engine. The knock sensor is responsible for detecting abnormal vibrations or knocking in the engine, which can be …

4 days ago · The P0325 code indicates a problem with the Knock Sensor Circuit in Bank 1 of your engine, which is responsible for detecting abnormal vibrations or knocking. But what’s causing it, and …

Dec 16, 2024 · Here's everything you need to know to understand the check engine error code P0325, which is triggered when the engine control module detects an abnormal signal or lack of signal a …

Nov 5, 2025 · When the EOBD/OBD-II error P0325 (Knock Sensor 1 Circuit Malfunction – Bank 1) is triggered, it means the ECM has received no signal or detected an unexpected voltage from the …

Mar 16, 2022 · Check engine light code P0325 means Knock Sensor 1 Circuit Malfunction (Bank 1). Find out how to fix it in this article!

Aug 12, 2024 · P0325 is a trouble code identified with the malfunction of knock sensor 1 in bank 1. Read about what P0325 code means, its frequent causes, and symptoms.

Code P0325 indicates that the readings from the #1 Knock Sensor circuit are too low, too high, erratic or in some way outside of its operational window and malfunctioning.

Nov 27, 2025 · When the OBD-II system detects a P0325 code, it signifies there’s a malfunction within the knock sensor circuit, specifically for sensor 1 in bank 1. This could be due to issues with the …

Learn about the P0325 trouble code, its causes like faulty knock sensors or wiring issues, and how to fix it with AutoZone.