p0332
Moderate
GMC · SUVs
Knock Sensor 2 Circuit Low Input
Quick Answer
Error code P0332 on your GMC SUVs means: Knock Sensor 2 Circuit Low Input. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Identify knock sensor 2 location
2
Inspect electrical connections
3
Test sensor with multimeter
4
Check harness for damage
5
Replace knock sensor if defective
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
Wiring harness
Connector
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