Scan Tool Testing and Procedures

Refer to the DRB user's guide for instructions and assistance with reading trouble codes, erasing trouble codes, and other DRB functions

DRB ERROR MESSAGES AND BLANK SCREEN
Under normal operation, the DRB will display one of only two error messages:
- User-Requested WARM Boot or User-Requested COLD Boot

DRB Display:

If the DRB should display any other error message, record the entire display and call the MDS Hotline, or call for information and assistance at 1-800-825-8737.
If the LED's do not light or no sound is emitted at start up, check for loose cable connections or a bad cable. Check the vehicle battery voltage (data link connector cavity 16). A minimum of 11 volts is required to adequately power the DRB.
If all connections are proper between the DRB and the vehicle or other devices, and the vehicle battery is fully charged, an inoperative DRB may be the result of a faulty cable or vehicle wiring.

DISPLAY IS NOT VISIBLE

DRB:

Low temperatures will affect the visibility of the display. Adjust the contrast to compensate for this condition.