Sephia GS Sedan L4-1.8L (1997)
Dimmer Switch: Component Tests and General Diagnostics
Circuit Testing
Circuit Testing-I/P Dimmer Switch
1. Remove the switch.
2. Apply 12 V to terminal 3 and ground to terminal 2.
3. Check that the DC voltage at terminal 4 changes as indicated when rotating the potentiometer.
4. If not as specified, replace I/P dimmer switch.
Switch Testing
Switch Testing-I/P Dimmer Switch
1. Remove the switch.
2. Apply 12 V to terminal 3 and ground to terminal 2.
3. Check that the voltage at terminal 4 changes linearly when turning the switch.
4. If not, replace the I/P dimmer switch.