Hyundai Santa Fe: Cruise Control System (CC) / Schematic diagrams
![](images/schematic_diagrams-1517/464/skhee4005l.gif)
Component Parts And Function Outline
Component part
|
Function
|
Vehicle-speed sensor, ESP/ABS Control Module
|
Converts vehicle speed to pulse.
|
ECM
|
Receives signals from sensor and control switches.
|
Cruise control indicator
|
Illuminate when CRUISE main switch is ON (Built into cluster)
|
Cruise Control switches
|
CRUISE switch
|
Switch for automatic speed control power supply.
|
Resume/Accel switch (RES +)
|
Controls automatic speed control functions by Resume/Accel switch (Set/Coast
switch)
|
Set/Coast switch (RES -)
|
Cancel switches
|
Cancel switch
|
Sends cancel signals to ECM.
|
Brake-pedal switch
|
Transaxle range switch (A/T)
|
ETC Motor
|
Regulates the throttle valve to the set opening by ECM.
|
* ETC Motor : Electronic Throttle Control Motor
Trouble Symptom Charts
Trouble Symptom 1
Trouble Symptom 2
Trouble symptom
Probable cause
Remedy
The set vehicle speed varies greatly upward or downward
"Surging" (repeated alternating acceleration and deceleration) occurs after
setting
Malfunction of the vehicle speed sensor circuit
Repair the vehicle speed sensor system, or replace the part
Malfunction of ECM
Check input and output signals at ECM
Trouble Symptom 3
Trouble symptom
Probable cause
Remedy
The CC system is not canceled when the brake pedal is depressed
Damaged or disconnected wiring of the brake pedal switch
Repair the harness or replace the brake pedal switch
Malfunction of the ECM signals
Check input and output signals at ECM
Trouble Symptom 4
Trouble symptom
Probable cause
Remedy
The CC system is not canceled when the shift lever is moved to the "N" position
(It is canceled, however, when the brake pedal is depressed)
Damaged or disconnected wiring of inhibitor switch input circuit
Repair the harness or repair or replace the inhibitor switch
Improper adjustment of inhibitor switch
Malfunction of the ECM signals
Check input and output signals at ECM
Trouble Symptom 5
Trouble symptom
Probable cause
Remedy
Cannot decelerate (coast) by using the "SET/–" switch
Temporary damaged or disconnected wiring of "SET/–" switch input circuit
Repair the harness or replace the "SET/–" switch
Malfunction of the ECM signals
Check input and output signals at ECM
Trouble Symptom 6
Trouble symptom
Probable cause
Remedy
Cannot accelerate or resume speed by using the "RES/+" switch
Damaged or disconnected wiring, or short circuit, or "RES/+" switch input
circuit
Repair the harness or replace the "RES/+" switch
Malfunction of the ECM signals
Check input and output signals at ECM
Trouble Symptom 7
Trouble symptom
Probable cause
Remedy
CC system can be set while driving at a vehicle speed of less than 40km/h
(25mph), or there is no automatic cancellation at that speed
Malfunction of the vehicle-speed sensor circuit
Repair the vehicle speed sensor system, or replace the part
Malfunction of the ECM signals
Check input and output signals at ECM
Trouble Symptom 8
Trouble symptom
Probable cause
Remedy
The cruise main switch indicator lamp does not illuminate (But CC system
is normal)
Damaged or disconnected bulb of cruise main switch indicator lamp
Repair the harness or replace the part...
Other information:
Prerequisite for activation
ISG system operates in the following situations.
The driver's seatbelt is fastened
The driver's door and hood are closed
The brake vacuum pressure is adequate
The battery sensor is activated and the battery is sufficiently charged
Outside temperature is not too low or too high
The vehicle is driven over a constant speed and stops
The climate control system satisfies the conditions
The vehicle is sufficiently warmed up
ISG related parts are working properly
The incline is gradual
The steering wheel is turned less than 180 degrees and then the vehicle
stops
Information
If the ISG light (white) is turned on on the instrument cluster and does not
meet the ISG system operating conditions, the ISG system is not activated...
Diagnosis with diagnostic
tool
Diagnosis with diagnostic tool
1.
In the body electrical system, failure can be quickly diagnosed by using
the vehicle diagnostic system (diagnostic tool).
The diagnostic system (diagnostic tool) provides the following information...
Categories
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The armrest is located in the center of the rear seat. Pull the armrest down
from the seatback to use it.
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