OBD2 Car ScannerWhat does P0332 mean?
P0332 stands for Knock Sensor 2 Circuit Low Input (Bank 2). The engine computer has detected an ignition problem or a misfire, meaning one or more cylinders are not burning fuel properly.
Powertrain codes cover the engine, transmission and emissions. When the car's computer sees a reading outside its normal range, it stores this code and may turn on a warning light on the dashboard.
Common causes
- Worn spark plugs
- Faulty ignition coil or plug wires
- Clogged fuel injector
- Vacuum leak
- Low compression
What to do
- Read all stored and pending codes with a scanner. Several codes together often point to one cause.
- Note the freeze frame data (speed, temperature, load) recorded when the code was set.
- Inspect the wiring and connectors of the part named in the code for damage, corrosion or looseness.
- Fix the most likely and cheapest cause first, then clear the code and drive to see if it comes back.
Read this code from your own car
Plug in a cheap ELM327 adapter and the app shows every fault code, what it means and how to fix it.
Frequently asked questions
What does P0332 mean?
P0332 means “Knock Sensor 2 Circuit Low Input (Bank 2)”. It belongs to the ignition system or misfire group: The engine computer has detected an ignition problem or a misfire, meaning one or more cylinders are not burning fuel properly.
Is it safe to drive with P0332?
Avoid driving long distances. This kind of fault can cause damage or affect safety, so get it checked as soon as possible.
How do I clear P0332?
Fix the cause, then clear the code with an OBD2 scanner or app. If the fault is still there, the code will come back.
Related codes
- P032DKnock Sensor 3 Circuit High Bank 1
- P032EKnock Sensor 3 Circuit Intermittent Bank 1
- P0330Knock Sensor 2 Circuit Malfunction (Bank 2)
- P0331Knock Sensor 2 Circuit Range/Performance (Bank 2)
- P0333Knock Sensor 2 Circuit High Input (Bank 2)
- P0334Knock Sensor 2 Circuit Intermittent (Bank 2)
- P0335Crankshaft Position Sensor A Circuit Malfunction
- P0336Crankshaft Position Sensor A Circuit Range/Performance
Code meanings can vary by manufacturer. This page is general guidance, not a repair manual. Always confirm the cause before replacing parts.