DRB III Error Messages and Blank Screen

If any of the following error messages appear on the DRB screen, refer to the Vehicle Communications section for diagnosis and repair.

- cartridge error
- ram test failure
- keypad test failure
- low battery
- high battery

If the DRB has a blank screen, do the following:

- Ensure there is a good body ground at cavity 1 of the data link connector.

- Use the process of elimination: Sequentially substitute another cable, cartridge, and DRB until the condition is corrected.


Under normal operation, the DRB will display one of only two error messages:

- User-Requested WARM Boot
- User-Requested COLD Boot

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

ver: 2.14
date: 26 Jul93
file: key_itf.cc
date: Jul 26 1993
line: 548
err: 0x1
User-Requested COLD boot

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