2013 Jeep P0325: What It Means & Is It Safe to Drive?
P0325 on the 2013 Jeep: Knock Sensor 1 Circuit Malfunction (Bank 1). Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
What this code means
The PCM isn't receiving a valid signal from knock sensor 1. Without knock feedback, the PCM retards ignition timing as a safety measure, reducing power and economy.
Common causes on the 2013 Jeep
- Failed knock sensor
- Corroded or broken wiring/connector at the sensor
- Actual engine knock from carbon buildup or low-octane fuel
Symptoms
- Check Engine Light
- Reduced power and fuel economy (PCM retards timing)
- Possible audible knock or ping under load
Typical fixes
- Replace knock sensor
- Repair wiring and connector
- Use correct octane fuel and address carbon buildup
Repair cost range
For a 2013 Jeep, repairs for P0325 typically fall between $150 and $500, depending on the root cause and labor rates in your area.
Known issues on Jeep
Jeep P0325 on 3.6L Pentastar V6 is frequently caused by moisture in the knock sensor wiring connector—the connector sits in a water-prone area under the intake manifold. Inspect the connector, apply dielectric grease, and recheck before ordering a sensor. On 4.0L AMC inline-six Wrangler (pre-2006), P0325 indicates harness routing damage from off-road use—inspect for abrasion against the block or headers. On 5.7L Hemi Grand Cherokee, the knock sensor circuit also covers the active MDS deactivation logic; P0325 can affect MDS behavior.
Most commonly affected models