Ground for the headlamp switch is available at all times
at connector C1 terminal 35. Battery voltage for the right headlamp
is supplied through the RH HDLP fuse (CKT 640) to the following terminals:
Battery voltage for the left headlamp is supplied through the LH HDLP
fuse (CKT 740) to the following terminals:
| • | Pontiac-through the DRL relay to terminal B of the headlamp |
| • | Oldsmobile --to terminal B and through the DRL relay
to terminal A |
When the headlamp switch is placed in the HEAD position and the low
beams are selected, ground is supplied to terminal A of both headlamps
(D-Oldsmobile) from connector C1 terminal 34 of the headlamp
switch through CKT 1201. When the headlamp switch is placed in the
HEAD position and the high beams are selected, ground is supplied to terminal C
of both headlamps from terminal 33 of the headlamp switch through
CKT 1200. Selecting flash-to-pass on the headlamp switch momentarily
supplies ground for the headlamps via CKT 150.
