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ACCESSORIES
9-7
CARB. ADAPTER
\
ROUTE UNDER HOT
AIR DUCT
I
WIRING-PART OF
HARNESS ASM.
/
FRONT
PER SPEEDO
SHAFT ASM.
TO INSIDE OF CA
I
HOSE PART OF
LOWER SPEED0
HARNESS ASM.
SHAFT TO TRANS.
VIEW A
4055
Fig. 9-5 Cruise Control Regulator Mounting
-
"Y" V8, A
and G Series
CRUISE MASTER
GENERAL DESCRIPTION
The Cruise Master system is used on F, X and some B
Series models. It operates in the same manner as the cruise
control system, and the only difference in the two systems is
the regulator. However, diagnosis of the two systems is
somewhat different.
DIAGNOSIS
ELECTRICAL SYSTEM
1. Check fuse and connecter.
2. Check electric brake switch as follows:
a. Unplug connecter at swtich.
b. Connect ohmmeter across cruise master contacts on
brake switch. The ohmmeter must indicate no continuity
when the pedal is depressed and continuity when pedal is
released. The cruise release brake switch (electric) is adjusted
as is the standard stop light brake switch.
c. Replace electric brake switch if needed.
ENGAGEMENT SWITCH TEST
Check engagement switch and connecting wiring as
follows; Unplug engagement switch connecter (brown, blue,
black) at electrical wiring harness connecter then perform the
following tests (Fig. 9-1 1):
Test #I-Connect ohmmeter between terminal #1
(brown wire) and terminal #2 (blue wire). Continuity shall
be maintained until switch is depressed all the way in.
Test #2-Connect ohmmeter between terminals
#
1
(brown wire) and terminal # 3 (black wire). No continuity
shall be shown; however, when the button is partially
depressed, continuity shall be indicated. When the button is
pressed all the way down, no continuity shall be shown.
Test #3-Connect ohmmeter between terminal #2 (blue
wire) and terminal #3 (black wire). Button released, no
continuity; however, when the button is depressed partially
and fully, continuity shall be shown.
HARNESS TEST (SEE FIG. 9-1 1)
1. Disconnect engage switch wire harness connecter
from the main harness connecter.
2. Connect ohmmeter between point C (browdwhite
strip wire in main wire harness) and ground. Make sure the
regulator is well grounded to the chassis. The ohmmeter
should read between 42 and 49 ohms. If a resistance either
above or below the value indicated is shown, then disconnect
the connecter from the regulator and measure the resistance
of the brown/white stripe wire from point C to D. It should
measure 40 ohms +2 ohms.
3. If a resistance either above or below the value
indicated is shown, the main wiring harness should be
replaced.
NOTE: When disconnecting or reconnecting the main
wiring harness connecter from the regulator, care should
be exercised so as not to damage the blade connecters
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