Operation CHARM: Car repair manuals for everyone.

DRBIII Error Messages and Blank Screen

DRBIII ERROR MESSAGES
Under normal operation, the DRBIII will display one of only two error messages:
* User-Requested WARM Boot or User-Requested COLD Boot





This is a sample of such an error message display:

DRBIII DOES NOT POWER UP (BLANK SCREEN)
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 16-way connector cavity 16). A minimum of 11 volts is required to adequately power the DRBIII. Also, check for a good ground at the DLC.

If all connections are proper between the DRBIII and the vehicle or other devices, and the vehicle battery is fully charged, and inoperative DRBIII may be the result of faulty cable or vehicle wiring.