STEP 1. Voltage measurement at ETACS-ECU connector (IGS terminal).
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Turn the ignition switch to the "ON" position.
(3) Check the voltage between the ETACS-ECU connector (IG1, IGS terminal) and body ground.OK: The voltage should measure approximately 12 volts (battery positive voltage)
Is the check result normal?
Go to Step 5. : Go to Step 2. : Go to Step 3.