P0332 Code: Knock Sensor 2 Circuit Low Input (Bank 2)
🟠 Moderate severity · drivable
Drivable, but the computer can't detect knock on bank 2 and may reduce power, so fix it soon.
What P0332 means
Knock sensor 2 on bank 2 is sending a voltage that's too low. This sensor detects engine knocking and the computer uses it to adjust ignition timing. A low reading usually means the sensor itself or its wiring is bad.
Symptoms
- Check engine light is on
- Reduced power
- Engine pinging under load
- Poor fuel economy
Common causes
- most common: Faulty knock sensor
- common: Shorted or damaged sensor wiring
- common: Corroded connector
- rare: Engine computer fault
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Replace the knock sensor | Yes | $50–200 |
| Repair shorted sensor wiring | Mechanic | $50–150 |
| Clean and tighten the sensor connector | Yes | $0–10 |
Frequently asked questions
Can I drive with a P0332 code?
Yes, but you may notice reduced power or pinging. Fix it soon.
What is the most common cause of P0332?
A faulty knock sensor on bank 2 reading low voltage.
How much does it cost to fix a P0332?
Typically $50–$200 for a new knock sensor.
Related codes
P0326
P0326 Code: Knock Sensor 1 Circuit Range/Performance (Bank 1)
P0330P0330 Code: Knock Sensor 2 Circuit Malfunction (Bank 2)
P0333P0333 Code: Knock Sensor 2 Circuit High Input (Bank 2)
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.