1) Inspect for continuity between the connector terminals using a DMM when operating the combination switch.
RHD

LHD

| Switch operation |
Terminal No. |
Continuity |
| MIST |
9-10 |
Yes |
| OFF |
8-10 |
|
| INT/AUTO |
8-10 15-16 |
|
| LO |
9-10 |
|
| HI |
9-11 |
|
| WASHER |
4-7 |
| Switch operation |
Terminal No. |
Continuity |
| AUTO |
20-15 |
Yes |
| TAIL |
18-15 |
|
| HEAD LO |
18-15 19-15 19-18 |
|
| HEAD HI |
18-15 19-15 19-18 14-15 |
|
| PASSING |
17-14 17-15 14-15 |
|
| TURN L (RHD) |
12-15 |
|
| TURN R (RHD) |
11-15 |
|
| TURN L (LHD) |
11-15 |
|
| TURN R (LHD) |
12-15 |
|
| FOG |
8-9 |
|
| REAR FOG |
7-8 7-9 8-9 |