Hyundai Palisade: Cruise Control System / Description and operation
The cruise control system is engaged by the cruise "ON/OFF" main switch located
on the right-hand side of steering wheel column. The system has the capability
to cruise, coast, accelerate and resume speed.
It also has a safety interrupt, engaged upon depressing brake or shifting select
lever.
The ECM is the control module for this system. The main components of cruise
control system are mode control switches, transmission range switch, brake switch,
vehicle speed sensor, ECM and ETS motor that connect throttle body.
The ECM has a low speed limit that prevents system engagement below a minimum
speed of 40km/h (25mph).
The operation of the controller is controlled by mode control switches located
on steering wheel.
Transmission range switch and brake switch are provided to disengage the cruise
control system. The switches are on brake pedal bracket and transmission. When
the brake pedal is depressed or select lever shifted, the cruise control system
is electrically disengaged and the throttle is returned to the idle position.
Cruise main switch (ON/OFF)
The cruise control system is engaged by pressing the cruise "ON/OFF" main switch.
Pressing the cruise "ON/OFF" main switch again releases throttle, clears cruise
memory speed, and puts vehicle in a non-cruise mode.
Set/Coast switch (SET/–)
The "SET/–" switch located on right-hand side of steering wheel column, has
two functions.
The set function - Push the "SET/–" switch and release it at the desired speed.
The SET indicator light in the instrument cluster will illuminate. Release the
accelerator pedal. The desired speed will automatically be maintained.
The coast function - Push the "SET/–" switch and hold it when the cruise control
is on. The vehicle will gradually slow down. Release the switch at the desired
speed. The desired speed will be maintained.
Push the "SET/–" switch and release it quickly. The cruising speed will decrease
by 2.0km/h (1.2mph).
Resume/Accel switch (RES/+)
The "RES/+" switch located on right-hand side of steering wheel column, has
two functions.
The resume function - If any method other than the cruise “ON/OFF” main switch
was used to cancel cruising speed temporarily and the system is still activated,
the most recent set speed will automatically resume when the "RES/+" switch
is pushed. It will not resume, however, if the vehicle speed has dropped below
approximately 40km/h (25mph).
The accel function - Push the "RES/+" switch and hold it when the cruise control
is on. The vehicle will gradually accelerate. Release the switch at the desired
speed. The desired speed will be maintained.
Push the "RES/+" switch and release it quickly. The cruising speed will increase
by 2.0km/h (1.2mph).
Cancel switch (CANCEL)
The cruise control system is temporarily disengaged by pushing the "CANCEL"
switch.
Cruise speed canceled by this switch can be recovered by pushing the "RES/+"
switch.
System Block Diagram
Component Parts And Function Outline
Component part
Function
Vehicle-speed sensor, ESP/ABS Control Module
Converts vehicle speed to pulse...
Other information:
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the cluster fascia panel (A).
(Refer to Body - "Cluster Fascia Panel")
3.
Remove the cluster (A) from the housing after removing screws...
Troubleshooting
Symptom
Possible cause
Remedy
Hard steering
Improper front wheel alignment
Correct
Excessive turning resistance of lower arm ball joint
Replace
Low tire pressure
Adjust
No power assist
Repair and replace
Poor return of steering wheel to center
Improper front wheel alignment
Correct
Poor or rough ride
Improper front wheel alignment
Correct
Malfunctioning shock absorber
Repair or replace
Broken or worn stabilizer
Replace
Broken or worn coil spring
Replace
Worn lower arm bushing
Replace the lower arm assembly
Abnormal tire wear
Improper front wheel alignment
Correct
Improper tire pressure
Adjust
Malfunctioning shock absorber
Replace
Wandering
Improper front wheel alignment
Correct
Poor turning resistance of lower arm ball joint
Repair
Loose or worn lower arm bushing
Retighten or replace
Vehicle pulls to one side
Improper front wheel alignment
Correct
Excessive turning resistance of lower arm ball joint
Replace
Broken or worn coil spring
Replace
Bent lower arm
Repair
Steering wheel shimmy
Improper front wheel alignment
Correct
Poor turning resistance of lower arm ball joint
Replace
Broken or worn stabilizer
Replace
Worn lower arm bushing
Replace
Malfunctioning shock absorber
Replace
Broken or worn coil spring
Replace
Bottoming
Broken or worn coil spring
Replace
Malfunctioning shock absorber
Replace
Wheel /tire noise, vibration and harshness concerns are directly related to
vehicle speed and are not generally affected by acceleration, coasting or decelerating...