DTC33: Power Supply Low
- Before proceeding, see AIR BAG SAFETY PRECAUTIONS . Disable air bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM . Disconnect Air Bag Diagnostic Unit (ADU) connector. Turn ignition on. Measure voltage between ground and terminal No. 5 (White/Green wire) of ADU connector. See Fig 1. If battery voltage is present, go to step 3. If battery voltage is not present, go to next step.
- Trace and repair open circuit between terminal No. 5 (White/Green wire) of ADU and battery. See WIRING DIAGRAMS . Go to next step.
- Check for continuity between terminal No. 6 (Black wire) of ADU connector and ground. If continuity exists, replace ADU. See AIR BAG DIAGNOSTIC UNIT (ADU) under REMOVAL & INSTALLATION. If continuity does not exist, replace harness between terminal No. 6 (Black wire) of ADU connector and ground.
Courtesy of KIA MOTORS AMERICA, INC.