Input Signal

Input Signal:

Using the scan tool tester or voltmeter, check whether or not the input signals from each switch are being input to the ETACS unit.
1. Connect the scan tool tester to the diagnosis check connector located at the right side of the junction block or connect the voltmeter between the ETACS terminal and the ground terminal.
2. Check if the buzzer of the scan tool tester sounds or the needle of the voltmeter moves when each switch noted below is operated.
If the buzzer sounds or the needle moves, the input signals are being input to the ETACS unit, so that switch can be considered to be functioning normally. If not, the switch or switch input circuit is faulty. Inspect the switch and the switch input circuit.
- Ignition switch.
- All door switches