DRB Scan Tool Error Messages and Blank Screen

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

If the DRB should display any other error message, record the entire display and call the scan tool manufacturer for information and assistance. This is a sample of such an error message display:

ver: 2.14
date: 26Jul93
file: key-itf.cc
date: Jul26 1993
line: 548
ern Ox1
User-Requested COLD boot

Press MORE to switch between this display and the application screen.
Press F4 when done noting information.

DRB DOES NOT POWER UP
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 required to adequately power the DRB.

If all connection 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 faulty cable or vehicle wiring. For a blank screen, refer to the appropriate body diagnostics manual.

DISPLAY IS NOT VISIBLE
Low temperatures will affect the visibility of the display. Adjust the contrast to compensate for this condition.