Circuit/System Testing

Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down
Disconnect the harness connector at the appropriate P22 Video Display.
Ignition ON, radio ON, DVD playing.
Test for 190 - 210 HZ DC between the control circuit terminal 15 and ground.
- If not between 190 - 210 HZ DC.
1. Ignition OFF, disconnect the X3 harness connector at the A11 Radio.
2. Ignition ON.
3. Test for less than 1 V between the control circuit and ground.
  - If 1 V or greater, repair the short to voltage on the circuit.
  - If less than 1 V
4. Ignition OFF.
5. Test for infinite resistance between the control circuit and ground.
  - If less than infinite resistance, repair the short to ground on the circuit.
  - If infinite resistance
6. Test for less than 2 Ω in the control circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, replace the A11 Radio.
- If between 190 - 210 HZ DC.
Test or replace the P22 Video Display.