STEP 3. Voltage measurement at FCM/LDW/AHB-ECU connector (IG terminal).
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Turn off the power supply mode of the electric motor switch.
(3) Turn on the power supply mode of the electric motor switch.
(4) Check the voltage between the FCM/LDW/AHB-ECU connector (IG terminal) and body ground.OK: The voltage should measure approximately 12 volts (battery positive voltage).
Is the check result normal?
Go to Step 4. Go to Step 5.