Diagnostic Mode

To enter diagnostic mode, vehicle speed must be below 10 mph. If vehicle speed is not below 10 mph, a "No Response" message will be displayed by the DRB. The following are characteristics of diagnostic mode:

- The amber ANTILOCK warning lamp and BRAKE warning lamp will flash. If a hard trouble code, such as an Inlet or Outlet Valve code or Main Relay/Power Circuit Failure code is present, these lamps will be illuminated without blinking and no diagnostic operations will be available until the trouble condition is cleared.

- Antilock and traction control operation are disabled.

- You will be unable to actuate the valves in the valve body when the vehicle speed is above 5 mph. If valve actuation is attempted above 5 mph, a "Vehicle in Motion" message will be displayed through the DRB.