Pontiac FIREBIRD 1972 Service Manual page 1280

12-10 1972 PONTIAC SERVICE MANUAL
switch, function check as to return from full left and
full right turns.
Actuate the turn lever into full turn position in either
direction, then turn the steering wheel (motor on
with power steering) at least 1/4 turn in the direction
indicated and then back to center. Do this in both
directions. If the lever does not return to the neutral
positiop, disassemble the upper part of the column
until the switch is visible.
2. Check the return from lane change by holding the
lever in lane change and releasing (both left and
right). If the lever does not return to neutral, disas-
semble the upper part of the column. An over sized
wedge on the mounting end of the turn signal lever
can cause this condition. Loosen attaching screw 1/2
!urn and if the switch now returns replace lever or file
wedge.
3. If the hazard warning button cannot be depressed or
released, the switch must be replaced. The actuating
lever may be bent on tilt and telescope columns.
Visual Inspection and Repair
1. With the upper part of the column disassembled so
that the signal switch is visible (Figure 12-14) check
for missing springs. Replace any spring that is miss-
ing, inspecting the molded pins which secure them.
If these pins are broken, the switch must be replaced.
2. Check the position of the switch in the bowl. If it
appears cocked or crooked, loosen the three mount-
1
Fig. 12-1 4 Visual Check of Turn Signal Switch
ing screws and inspect the switch. If any of the plastic
is broken or badly deformed, the switch must be
replaced.
3. With switch in neutral position, both cancel springs
should be spaced equally from the steering shaft. Re-
place upper casting if mounting holes will not allow
proper switch centering.
4. If the switch appears undamaged, replace it being
careful to seat the pilot into the housing, tighten the
screws to 25 in. lbs. of torque.
HEADLIGHT DIAGNOSIS
ONE HEADLIGHT INOPERATIVE OR INTERMITTENT
CAUSE
Loose connection.
Defective Sealed Beam
CORRECTION
Secure connections to sealed beam including ground
(Black Wire).
Replace.
ONE OR MORE HEADLIGHTS ARE D I M
Open ground connection at headlight
Black ground wire mislocated in headlight
Connector (type 2 sealed beam)
Repair black wire connection between sealed beam
and body ground.
*Relocate as shown in Service Circuit.
ONE OR MORE HEADLIGHTS
-
SHORT LIFE
Voltage Regulator Misadjusted
Check and replace if necessary.