ICC System Cannot Be Set (Main Switch Turns On/Off)

ICC SYSTEM CANNOT BE SET (MAIN SWITCH TURNS ON/OFF)

Description

The MAIN switch can be turned ON/OFF, but the ICC system cannot be set even if the SET/COAST switch is pressed.
NOTE:
The system cannot be set in the following case.
- When the vehicle ahead is not detected below the speed of 32 km/h (20 MPH).
- When the selector lever is not in the "D", "DS" position or manual mode.
- When the front wipers are operating at LO or HI.
- When the brake pedal is depressed.
- When driving into a strong light (i.e., sunlight).
- When the snow mode switch is turned ON.
- When the VDC is turned OFF.
- When ABS or VDC (including the TCS) operates.
- When a wheel slips.


Diagnosis Procedure


1. CHECK CAUSE OF AUTOMATIC CANCELLATION

Check if there is the cancellation cause in the "CAUSE OF AUTO-CANCEL" on "WORK SUPPORT" of "ICC/
ADAS" with CONSULT.
Is it displayed?
Not displayed-GO TO 2.
"OPE SW VOLT CIRC"-Operation Switch.
"VHCL SPD UNMATCH"-ICC (Full Speed Range).
"IGN LOW VOLT"-ICC (Full Speed Range).
"ECM CIRCUIT"-ICC (Full Speed Range).
"CAN COMM ERROR"-Cruise Control ICC (Full Speed Range).
"ABS/TCS/VDC CIRC"-ICC (Full Speed Range).
"BCU CIRCUIT"-ICC (Full Speed Range).

2. PERFORM THE SELF-DIAGNOSIS

1.Perform "All DTC Reading".
2.Check if any DTC is detected in "Self Diagnostic Result" of "ICC/ADAS". A L L Diagnostic Trouble Codes ( DTC ).
Is any DTC detected?
YES- GO TO 3.
NO- GO TO 4.

3. REPAIR OR REPLACE MALFUNCTIONING PARTS

Repair or replace malfunctioning parts identified by the self-diagnosis result.
- GO TO 6.

4. CHECK EACH SWITCH AND VEHICLE SPEED SIGNAL

1.Start the engine.
2.Check that the following items operate normally in "DATA MONITOR" of "ICC/ADAS".
-"VHCL SPEED SE"
-"D RANGE SW"
-"SET/COAST SW"
-"BRAKE SW"
- "WIPER SW"
-"PKB SW"
Is there a malfunctioning item?
All items are normal-GO TO 5.
"VHCL SPEED SE"-ICC (Full Speed Range).
"D RANGE SW"-ICC System Does Not Cancel When A/T Selector Lever Sets On "N".
"SET/COAST SW"-Operation Switch.
"BRAKE SW"-Brake Switch/Stop Lamp Switch.
"WIPER SW" (When the front wiper operation is normal)-GO TO 5.
"WIPER SW" (When the front wiper operation is malfunctioning)-Performs the diagnosis of the front wiper.
Symptom Table.
"PKB SW"-Parking Brake Switch Signal Circuit.

5. REPLACE ICC SENSOR INTEGRATED UNIT

1.Replace the ICC sensor integrated unit. ICC (Full Speed Range).
2.Perform the laser beam aiming. Description.
- GO TO 6.

6. CHECK ICC SYSTEM

1.Erase the self-diagnosis results, and then perform "All DTC Reading" again after performing the action test. (Description for action test.)
2.Check that the ICC system is normal.
- INSPECTION END