With Manufacturer's Scan Tool

Knock Sensor Control Limit, Checking

If the malfunction message "Knock control regulation reached" is recorded in the DTC memory the following tests must be carried out. See also measuring value blocks 20, 21, 22, 23 and 24. Refer to "Scan Tool Testing/Measuring Value Blocks (Function 08)/Evaluating Measured Value Blocks" Testing and Inspection