Back to 2014 Jeep Wrangler

2014 JEEP WRANGLER

3.6L V64WDAUTOMATICgas
4 active safety recalls on this vehicle — view recalls
Repairs183Labor505Torque3681Fluid9DTC908Battery0Maintenance0Recalls4
P0325moderate severityPowertrain

Knock Sensor 1 Circuit Bank 1

on 2014 Jeep Wrangler 3.6L V6 · 4WD

What this code means

Malfunction in the knock sensor 1 circuit for Bank 1. The knock sensor detects engine detonation/pinging and allows the PCM to retard timing.

Symptoms

  • Check Engine Light
  • Reduced power (timing retarded)
  • Possible pinging/knocking
  • Poor fuel economy

Common causes

  • Faulty knock sensor
  • Wiring damage
  • Incorrect torque on sensor
  • PCM failure
  • Engine noise masking knock signal

Diagnostic steps

  1. Test knock sensor resistance
  2. Inspect wiring and connector
  3. Check sensor mounting torque
  4. Monitor knock signal with scan tool

Repair notes

Replace knock sensor. Torque to spec (important). Use correct sensor for application.

Other Powertrain codes on this vehicle

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