DTC P06B7-21: Internal Control Module Knock Sensor Processor 2 Performance - Signal amplitude < minimum: Action
- Check knock sensor mounting bolt is tightened to the correct torque
- Refer to the appropriate system wiring diagrams and check the knock sensor harness circuit for high resistance
- Check knock sensor connector is not disconnected, connector terminal is not backed out, connector terminal not corroded
- Check and install a new knock sensor as required