DRBIII Does Not Power Up

DRBIII 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 is required to adequately power the DRBIII.

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