Main Circuit

Automatic Trans.
Connect voltmeter between terminals 4 and 7. With ignition on, and transmission selector in 'N' or 'P', at least 9 vdc should be present.
a. If not, check wiring for breaks and repair as necessary.
b. Check selector lever switch and repair or replace as necessary.

Manual Trans.
Connect voltmeter between terminals 4 and 7. With ignition on, at least 9 vdc should be present. If not, repair wiring as necessary.