Component Testing

Turn Signal/Multifunction Switch Test

1. Ignition OFF, disconnect the harness connector at the S78 turn signal/multifunction switch.
2. Test for Infinite resistance between the terminals listed below with the switch in the open position.
   • Signal terminal 2 and ground terminal 3
   • Signal terminal 4 and ground terminal 3
   • If not the specified value, replace the S78 turn signal/multifunction switch.
3. Test for less than 2 Ω between the signal terminal 2 and the ground terminal 3 with the switch in the high beam position.
   • If greater than the specified value, replace the S78 turn signal/multifunction switch.
4. Test for less than 2 Ω between the signal terminal 4 and the ground terminal 3 while holding the switch in the flash to pass position.
   • If greater than the specified value, replace the S78 turn signal/multifunction switch.