Cadillac 60 Series 1963 Shop Manual page 361

12-80
ELECTRICAL SYSTEM
CRUISE CONTROL DIAGNOSIS CHART
CONDITION
Speedometer Noise
Blowing Fuses
No Cruise Control Response
No Automatic Control When
Using Selector Switch
Constant Pressure on Accel-
erator Pedal Regardless of dial
setting.
POSSIBLE CAUSE
Cables bent or kinked.
Lack of cable lubrication.
Noisy Speedometer head as-
sembly.
Short or ground in wiring cir-
cuit.
Improper linkage adjustment.
Defective motor.
Locked drive screw.
Accelerator linkage broken or
disconnected.
Drive cables broken or dis-
connected.
Blown fuse.
Loose connections or broken
wires (internal or external).
Driver riding the brake pedal
or driver does not hold ac-
celerator against back pres-
sure when depressing selector
button.
No current at #2 terminal.
Loose or disconnected ground
wire between selector control
and #3 terminal.*
Inoperative cut-out switch on
brake pedal.
Magnet assembly does not latch
properly.
Blown fuse.
No current at #1 terminal.
Control cable improperly ad-
justed.
Control cable defective.
Inoperative motor or locked
drive screw.
REMEDY
Straighten or replace cables.
Lubricate.
Repair.
Check for short or ground.
Repair or replace if necessary.
Adjust accelerator linkage.
Check operation of motor. If
more than 7 amps at 12.5 volts
are noted in either direction,
replace motor.
Check drive screw for binding.
Note 98c. Replace if necessary.
Connect or replace linkage and
adjust.
Connect or replace cables.
Replace and check cause.
Check for current at the unit.
Repair wires or tighten wiring
connections as required. Check
condition of terminal block.
Replace if necessary.
Instruct owner.
Perform Electrical Test, Note
98b. Correct as required.
Tighten or connect ground
wire.
Check switch and replace if
necessary.
Check and adjust locking arm
latch.
Replace fuse and perform
Electrical Test, Note 98b.
Perform Electrical Test, and
correct as required.
Adjust cable.
Replace cable.
Check operation of motor and/
or drive screw. Replace or
repair as necessary.