The Lemon Index

Check engine light · Engine codes

P0325: Knock Sensor 1 Circuit (Bank 1)

Powertrain · GenericP0325
Drive on, get it checked
What it means

The knock sensor signal is missing or out of range, so the computer plays it safe and the engine may feel sluggish.

How serious

Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.

Where a shop starts

Failed knock sensor. Then: wiring or connector fault.

Owners named P0325 in 14 complaints to the U.S. government, most often on the Chevrolet Cruze.

Cars owners report it on

Complaints that name P0325, by model. Raw counts, not a failure rate: popular models get more complaints.

Years owners report it on most: 2017 Chevrolet Cruze

The details

What P0325 means

The knock sensor signal is missing or out of range, so the computer plays it safe and the engine may feel sluggish.

Can I drive with P0325?

Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.

57% of the owner complaints that name P0325 also say the car rattles or knocks. A complaint can describe more than one problem, so this doesn't prove the code caused it.

Common causes of P0325
  • Failed knock sensor
  • Wiring or connector fault

A shop should confirm the cause with a scan and tests before replacing parts.

What owners describe
  • Rattles or knocks: 57% of complaints
  • Loses power or goes into limp mode: 43% of complaints
  • Stalls or shuts off: 29% of complaints
  • Shakes, runs rough or misfires: 14% of complaints

Share of complaints naming the code whose text also mentions each problem.

Model years that report P0325 most

2017 Chevrolet Cruze (2).

Related codes

P0324 P0326 P0320 P0316 P0335 P0336 P0339 P0340

Quick answers

What does P0325 mean?

Knock Sensor 1 Circuit (Bank 1). The knock sensor signal is missing or out of range, so the computer plays it safe and the engine may feel sluggish.

Can I drive with P0325?

Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.

What causes P0325?

Failed knock sensor; Wiring or connector fault.

Counts: NHTSA owner complaints whose text names P0325. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.

Updated · Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data

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