Cadillac 60 Series 1963 Shop Manual page 325

12-44
ELECTRICAL SYSTEM
cornering light will light continuously. When a
left turn is to be made, the lever is moved down-
ward and the left lamps operate in like manner.
After the turn is completed, the return of the
steering wheel to the straight ahead position auto-
matically turns off the signal lights, and cornering
light when lit.
The automatic turn-off is achieved by means of
a cam that is pinned to the steering wheel hub,
and a ratchet that is integral with the switch as-
sembly. When the steering wheel is turned in the
direction for which the control is set, the cam
passes the ratchet without engaging, but when
the wheel is turned in the opposite direction, the
cam engages the ratchet and turns off the signal
and cornering light.
When the signal system is operating properly,
the lights flash about 70 to 90 times per minute
at 12.8 volts. If either a front or rear signal bulb
burns out, the reduced current in the circuit will
increase the flashing speed of the remaining bulb.
The signal flasher is a sealed unit and is non-
adjustable. If inoperative it must be replaced.
The flasher makes an audible signal when the
circuit is energized. This is purposely created
as an additional warning t h a t the signal i s
operating.
63. Directional Signal Switch
Removal and Installation
a. Removal
1. Remove steering column lower cover and
transmission shift indicator and holder.
2. Disconnect signal switch wires at connectors
under dash.
3. Remove steering wheel as described in Sec-
tion 5, Note 16a.
4. Remove directional signal cancelling cam
wheel spacer.
5. Lower column and remove directional switch
harness protector from steering column jacket
by removing two attaching screws.
6. Remove three screws retaining directional
signal housing to steering column assembly and
remove directional signal housing and switch
assembly.
7. Remove directional switch lever.
8. Remove two switch retaining screws and
switch wire clamp screw from back of direc-
tional signal housing and remove switch assembly
and wires from housing.
b. Installation
1. Install switch assembly in directional signal
housing, threading wires through housing. Secure
switch and wires with two retaining screws and
secure clamp with third retaining screw.
2. Install directional switch lever.
3. Position switch assembly and directional
signal housing on steering column, feeding wires
through shift lever housing and top of steering
column jacket. Secure with three screws.
4. Position directional switch harness protector
on steering column jacket and attach with two
screws.
5. Install column and transmission shift indi-
cator and holder.
6. Install directional signal cancelling c a m
wheel spacer on bottom side of steering wheel
hub, positioning locating pin into hole in hub.
7. Install and align steering wheel as described
in Section 5, Notes 16b and c.
8. Connect signal switch wires to connector
under dash, observing color coding.
9. Check switch for operation.
10. Install steering column lower cover.
64. Electrical Accessory Installation
When installing additional electrical equipment,
such as heaters or auxiliary lights, they should be
connected to the proper terminals in the wiring
harness or the accessory terminal on the fuse
panel in accordance with the instructions pro-
vided with the accessory. Care should be exer-
cised in the addition of accessories other than
those that are Cadillac designed to avoid over-
loading the electrical system.
65. Horn Operation and Testing
Conditions that may affect horn performance,
and procedures for checking these conditions are
listed below:
a. Horn Inoperative—This condition
may result from:
1. Defective relay, horn control, or wiring.
2. Defects within the horn. To locate:
a. Connect a jumper lead to the "H" and middle
terminals of the horn relay.