p0332
Moderate
Cadillac · Sedans
Knock Sensor 2 Circuit Low
Quick Answer
Error code P0332 on your Cadillac Sedans means: Knock Sensor 2 Circuit Low. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Faulty knock sensor number 2
  2. Broken wiring or poor connection
  3. Sensor misalignment
  4. ECU communication issue
  5. Corroded connector pins
How to Fix It
1
Access knock sensor 2 location
2
Inspect wiring integrity and connections
3
Clean connector pins if corroded
4
Test sensor with ohmmeter
5
Replace knock sensor if resistance is out of spec
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Knock sensor
Dielectric grease
Wrench
Multimeter
Related Error Codes
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