Table of Contents
Advertisement
8H - 6
SPEED CONTROL SYSTEM
•
(3) Connect a j u m p e r w i r e between t h e male and
female t e r m i n a l s of the blue w i r e w i t h red tracer.
The
other three male t e r m i n a l s from the servo
should show b a t t e r y voltage. I f not, replace the servo.
(4) U s i n g an ohmmeter, connect one lead to a good
body ground and w i t h the other lead touch the black
(BK) wire t e r m i n a l i n t h e 4-way connector of the
m a i n harness. The meter should show c o n t i n u i t y . I f
not, repair the g r o u n d c i r c u i t as necessary.
ELECTRICAL TESTS AT ENGINE CONTROLLER
(1) U n p l u g 60-way connector from the engine con-
troller, located on dash panel (Fig. 1).
LEFT
FENDER
J908D-56
Fig. 1 Engine Controller and Connector Location
(2) Connect negative lead of voltmeter to a good
body ground near the module.
(3) For the f o l l o w i n g tests, the i g n i t i o n switch m u s t
be i n the O N position. Refer to Fig. 2 for controller
t e r m i n a l locations. Touch the positive lead of the
voltmeter to the t e r m i n a l i n cavity number 33. W i t h
the speed control switch i n the O F F position, the
voltmeter should read 0 volts. W i t h the speed control
switch i n the O N position, the voltmeter should read
battery voltage. I f not, repair the m a i n harness as
niiiL
uutr
RR8HC7
Fig. 2 Engine Controller 60-Way Connector Shown
from Terminal End
necessary.
(4) Touch the positive lead of the voltmeter to the
t e r m i n a l i n cavity number 53. As i n step (3), the
voltmeter should read 0 volts w i t h the switch i n the
OFF position and battery voltage w i t h the switch i n
the O N position.
(5) Touch t h e positive lead of the voltmeter to the
t e r m i n a l i n cavity
number 48. W i t h the speed control switch i n t h e
OFF position, t h e voltmeter should read 0 volts.
W i t h the s w i t c h i n the O N position, the voltmeter
should read b a t t e r y voltage. Pressing the SET b u t t o n
should cause t h e voltmeter to change from battery
voltage to 0 volts for as l o n g as t h e switch is held. I f
not, perform t h e speed control switch test. I f the
switch is not a t f a u l t , t h e n check the m a i n harness
and repair as necessary.
(6) Touch t h e positive lead of the voltmeter to the
t e r m i n a l i n cavity number 50. The voltmeter should
read 0 volts w i t h the speed control switch i n either
the OFF or O N position. W i t h switch i n either RE-
S U M E or SET position, the voltmeter should read
battery voltage. I f not, perform the speed control
switch test. I f t h e switch is not at fault, t h e n check
the m a i n harness and repair as necessary.
(7) Touch t h e positive lead of the voltmeter to the
t e r m i n a l i n cavity number 49. The voltmeter should
read 0 volts w i t h the s w i t c h i n the OFF position.
W i t h the s w i t c h i n the O N position, the voltmeter
should read b a t t e r y voltage. The voltmeter w i l l con-
tinue to read b a t t e r y voltage w h e n either the SET or
R E S U M E s w i t c h is pressed. I f not, perform the speed
control s w i t c h test. I f the s w i t c h is not at fault, t h e n
check the m a i n harness and repair as necessary .
(8) U s i n g a n ohmmeter, connect one lead to a good
body ground and touch the other lead to the t e r m i n a l
i n cavity n u m b e r 29. W i t h t h e brake pedal released,
the meter should show c o n t i n u i t y . When the pedal is
depressed, the meter should show open circuit.
STOP LAMP SPEED CONTROL SWITCH TEST
(1) Disconnect the connector at the stop lamp
switch. U s i n g
a n ohmmeter,
c o n t i n u i t y may
be
checked at the s w i t c h side of the connector as follows
(Fig. 3):
(a) W i t h b r a k e pedal released, there should be
continuity (no resistance) between the black (BK)
and w h i t e w i t h p i n k tracer (WT/PK*) wires, and
between the yellow w i t h red tracer (YL/RD*) and
dark blue w i t h red tracer (DB/RD*) wires. There
should be no c o n t i n u i t y between the p i n k (PK) and
w h i t e (WT) wires.
(b) W i t h brake pedal depressed, there should be
continuity between
p i n k
(PK)
and w h i t e
(WT)
wires. There should be no c o n t i n u i t y between black
(BK) and w h i t e w i t h p i n k tracer (WT/PK*) wires,
or between the yellow w i t h red tracer (YL/RD*)
and d a r k blue w i t h red tracer (DB/RD*) wires.
(2) I f the above results are not obtained, the stop
lamp
switch is defective
or
out of adjustment.
Advertisement
Table of Contents
