Finding unusual signals
While referring to 01-02B-7 ON-BOARD DIAGNOSTIC TEST [L3 WITH TC], use the PID/DATA monitor and record function to inspect the input signal system relating to the problem.
- Start the engine and idle the vehicle. You can assume that any signals that are out of specification by a wide margin are unusual.
- When recreating the problem, any sudden change in the monitor input signals that is not consciously created by the driver can be determined as unusual.