Test 4: Cockpit Switch Group Circuit 31 Internal Connection

Turn ignition switch to LOCK position. Disconnect cockpit switch group harness connector. Measure resistance between terminal No. 31 at cockpit switch group harness connector and pin No. 4 at cockpit switch group. If resistance is one ohm or less, cockpit switch group circuit 31 internal connection is okay at this time. If resistance is greater than one ohm, replace cockpit switch group.