Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the rear video display.
- Ignition ON, test for 100 - 300 Hz at the control circuit terminal 10.
- If not within the specified range, test the control circuit for a short to voltage, short to ground, or an open/high resistance. If the circuit tests normal, replace the radio.
- If all circuits test normal, replace the rear video display.