toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Interior Lighting Relay > < Headlamp Relay|Locations|Page 77
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Headlamp Relay: Testing and Inspection

Headlight Relay Testing

CONTINUITY

1.

Check that there is continuity between terminals 1 and 2.

2.

Check that there is no continuity between terminals 3 and 4, and between terminals 1 and 4.

3.

If not as specified, replace relay.

OPERATION

1.

Apply battery voltage across terminals 1 and 2.

2.

Check that there is continuity between terminals 3 and 4, and no continuity between terminals 1 and 4.

3.

If not as specified, replace relay.

Interior Lighting Relay > < Headlamp Relay|Locations|Page 77