Chevrolet CAMARO 1979 Service Manual page 897

accEssoRrEs 9-1
sEcrroN 9
Cruise Master,.,.,.,,.,.,.,.,,.
. .-.. . ..---,.,-,. . - .,. .,-,.,,.,., 9.1
Geneml Description.....................................................
9-1
Diagnosis....................................................,..:..............9-3
El€ctrical System Troubl€shooting..............................
9-3
On-CarService.............. ...........-.....--.........-......
9,7
Maintenânce and Adjustments..................................
9,7
Transducer...............................-................................9-7
Power Unit.................... ...........................................
9.7
Bmke Release Switches............................................
9-7
Column Moùnted Engagement Switch................... 9-7
Component Part Replacement..................................
9-8
Transducer.-......,.,..,..,.,.,,,,.,.,.,.,,.,.,.,...........,.,.,,.,,,,.,.9-8
Power Unit...............................................................
9,8
Column Mounted Engagement Switch................... 9-8
Specificâtions................................................................913
Defogger.........................................................................9-13
General Descdption.......--.......-.. . .. ... -...--............ 9.13
Dia8nosis......................................................................9-13
On-Car Service.............................................................
9-15
Control Switch...................--...,-...,-.....-.............
9-15
Timer..................-...--.......--.,--,-...-........-........9-15
The Cruise Master is a speed control system which
employs engine mânifold vacuum to control the throttle
power unit. Th€ power unit moves the throttle, when spêed
adjùstment is necessary, by receiving a varying amount of
controlled vacuum from the transducer. The speedometer
cable (from the trânsmission) driv€s the transducer, and a
cable (ftom the transducer) drives the instrument panel
speedometer. The engâgement of the traûsducer unit is
controlled by an engagement switch located at the €nd of
the tum signal or mùlti-function lever. Two bmke release
switches are provided: an electric switch disengages the
transducer ard a vacuùm valve d€creases the vacuum in the
power unit to $rickly retùrn the throttle to idle position.
The purpose of th€ Cruise Mâster sysæm is to allow
the ddver to mâintain a constant highwây speed witloùt the
necessity oi continuâlly applying foot pressure to the
accelerator pedal. Speed changes are easily made and
override featùres allow the vehicle to bè stopped, sloçed or
accelerâted as described below.
A C C E S S O R I E S
C O N T E N T S
C R U I S E M A S T E R
G E N E R A L D E S C R I P T I O N
Radio - Tape Players...........................................
9-18
General Information.........................-................ 9-18
Diasnosis......................................................
9-20
Cassette Tape Player...................................
. . . ....... 9-20
CB Units.......................................................
9-20
Static and Noise..............................................
9-20
Popping Noise.................................................
9-20
Testiq Windshield Antennâ................................
9-20
On-Car Service.............. ----- - - - -., -, ..........
-......... 9-22
Maintenance and Adjustment..............................
9-22
Tape Plâyer Maintenance ....................................
9-22
Trimming Radio AntenAa..................................
9-22
SWR Check ând Adjustment...............-.............
9-22
Power 4ntenna..............................................
9-22
Component Part Replacement.............................
9,36
Radio -.........................................................
9-36
Radio Diâl8uIb..............................................
9-36
Speaker......................................................
Radio 4ntenna...............................................
9,36
Speciâl Tools .....................................................
9-43
Engaging ths Cruis€ Systsm
The driver accelerates to th€ desired cruise speed and
partially depresses and releâses the cruise contrcl
€ngagemenl switch button locâted at the end of the
directional signal or multi-function lever The cruise system
takes ov€r speed control, and within engine limitalion,
maintains this speed r€gardless of changes in teffâin.
The Engâgement S\rdtch button performs these
functions:
1. Above 30 mph (50 km/h), when pârtially depr€ssed
and released, it engages the 6uise system.
2. When depressed fully and held there, it disengages
3. When released slowly from the fully depressed
position, it will engage the system at the exisling speed ând
c ise at thât speed above 30 mph (50 kmÂ).
NOTICE: See Fig. 9-1C "Engâge Switch Operation'. I