Kia Forte: Trouble Symptom Charts
Trouble symptom
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Probable cause
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Remedy
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The set vehicle speed varies greatly upward or downward
"Surging" (repeated alternating acceleration and deceleration) occurs
after setting
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Malfunction of the vehicle speed sensor circuit
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Repair the vehicle speed sensor system, or replace the part
|
Malfunction of ECM
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Check input and output signals at ECM
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Trouble symptom
|
Probable cause
|
Remedy
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The CC system is not canceled when the brake pedal is depressed
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Damaged or disconnected wiring of the brake pedal switch
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Repair the harness or replace the brake pedal switch
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Malfunction of the ECM signals
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Check input and output signals at ECM
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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)
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Damaged or disconnected wiring of inhibitor switch input circuit
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Repair the harness or repair or replace the inhibitor switch
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Improper adjustment of inhibitor switch
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Malfunction of the ECM signals
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Check input and output signals at ECM
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Trouble symptom
|
Probable cause
|
Remedy
|
Cannot decelerate (coast) by using the "SET/–" switch
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Temporary damaged or disconnected wiring of "SET/–" switch input
circuit
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Repair the harness or replace the "SET/–" switch
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Malfunction of the ECM signals
|
Check input and output signals at ECM
|
Trouble symptom
|
Probable cause
|
Remedy
|
Cannot accelerate or resume speed by using the "RES/+" switch
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Damaged or disconnected wiring, or short circuit, or "RES/+"
switch input circuit
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Repair the harness or replace the "RES/+" switch
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Malfunction of the ECM signals
|
Check input and output signals at ECM
|
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
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Repair the vehicle speed sensor system, or replace the part
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Malfunction of the ECM signals
|
Check input and output signals at ECM
|
Trouble symptom
|
Probable cause
|
Remedy
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The cruise main switch indicator lamp does not illuminate (But
CC system is normal)
|
Damaged or disconnected bulb of cruise main switch indicator
lamp
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Repair the harness or replace the part.
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Harness damaged or disconnected
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Component Parts And Function Outline
Component part
Function
Vehicle-speed sensor
Converts vehicle speed to pulse.
ECM
Receives signals fr ...
1. Remote control switch(LH)
2. Remote control switch(RH)
3. Bluetooth hands free switch
4. Trip switch
...
See also:
LCD Modes
Service Mode
Service Interval
Service in
It calculates and displays when you need a scheduled maintenance service (mileage
or days).
If the remaining mileage or time reaches 900 mi. (1,50 ...
Fuel Sender Removal
1.
Remove the fuel pump. (Refer to Fuel Delivery System - "Fuel Pump")
2.
Disconnect the electric pump wiring connector (A) and t ...
Description
Limitations Of The Navigation system
GPS Signal Reception State
As the GPS satellite frequency is received/transmitted in straight lines,
reception may not work if hiding devices are pla ...