P0332-21: Knock Sensor 2 Circuit Low (Bank 2) - Signal amplitude < minimum: Action
- Check engine control module for related misfire DTCs and refer to this DTC index. Rectify these first
- Refer to the applicable SYSTEM WIRING DIAGRAM(S) and check knock sensor circuit for short circuit to ground, short circuit to power
- Measure knock sensor circuit for correct resistance
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Using the manufacturer approved diagnostic system clear all stored DTCs using the `Diagnosis Menu' tab and retest
- Check and install a new knock sensor as required