Diagnostic Mode

DIAGNOSTIC MODE
To enter diagnostic mode, vehicle speed must be below 10 km/h (6 mph), a "no response" message will be displayed by the DRBIII. The following are characteristics of diagnostic mode:
^ The ABS warning indicator will flash. If a hard diagnostic trouble code is present, such as a Speed Sensor Circuit or Signal Failure trouble code or CAB Power Feed Circuit diagnostic trouble code, the indicator will be illuminated without blinking and limited diagnostic operations only will be available until the diagnostic trouble code condition is corrected.
^ Antilock operation is disabled.