STEP 7. Voltage measurement at the SRS-ECU connector.
(1) Check that the negative battery terminal is disconnected. If the negative battery terminal is connected, disconnect it.
(2) Disconnect the SRS-ECU connector.
(3) Connect the negative battery terminal.
(4) Ignition switch: ON
(5) Take the measurements below at the SRS-ECU harness side connector. - Voltage between terminal IG1A line and body ground
OK: 9 volts or more
(6) Disconnect the negative battery terminal.
Is the check result normal?
Go to Step 9. Go to Step 8.