Use Diagnostic Trouble Codes (DTCs) (from the DTC checks) in the table below to determine the trouble area and proper inspection procedure. The Supplemental Restraint System (SRS) diagnostic trouble code chart is shown below as an example.

Symptom simulation
Problem symptoms tableChanging the vehicle-to-vehicle distance
Pressing the button changes the
vehicle-to-vehicle distance as follows:
long
medium
short
The vehicle-to-vehicle distance is
set automatically to long mode
when the engine switch is turned to
ignition on mode.
If a vehicle is running ahead of you, the preceding vehicle mark wil ...