Master Switch
- Check power source line to switch connector. Check power source line between terminal "B" and ground of switch wiring connector. Check ground connection. Check ground connection between terminal "E" and ground of switch wiring connector.
- With switch in "UP" position, continuity should exist between terminals 1" and "B" for left side mirror and between terminals "H2" and "B" for right side mirror. Continuity should also exist between terminals "C" and "E".
- With switch in "DOWN" position, continuity should exist between terminals "V1" and "E" for left side mirror and between terminals "H2" and "E" for right side mirror. Continuity should also exist between terminals "B" and "C".
- With switch in "LEFT" position, continuity should exist between terminals "H1" and "E" for left side mirror and between terminals "V2" and "E" for right side mirror. Continuity should also exist between terminals "B" and "C".
- With switch in "RIGHT" position, continuity should exist between "H1" and "B" for left side mirror and between terminals "V2" and "B" for right side mirror. Continuity should also exist between terminals "C" and "E".