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 speed is not in range of approximately 40 km/h (25 MPH) to 144 km/h (90 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.
(If the vehicle is equipped with a rain sensing auto-wiper, the system may cancel when the wipers are set to AUTO)
- When the brake pedal is depressed.
- When driving into a strong light (i.e., sunlight).
- 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-III.
Is it displayed?
Not displayed-GO TO 2.
"OPE SW VOLT CIRC"- C1A06.
"VHCL SPD UNMATCH"- C1A03.
"IGN LOW VOLT"- C1A01.
"ECM CIRCUIT"- C1A14.
"CAN COMM ERROR"- Cruise Control.
"ABS/TCS/VDC CIRC"- C1A04.
"ECD CIRCUIT"- C1A26.
2.PERFORM THE SELF-DIAGNOSIS
1. Perform "All DTC Reading".
2. Check if any DTC is detected in "Self Diagnostic Result" of "ICC/ADAS". Testing and Inspection.
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"
Is there a malfunctioning item?
All items are normal-GO TO 5.
"VHCL SPEED SE"- C1A03.
"D RANGE SW"- ICC System Does Not Cancel When A/T Selector Lever Sets On "N".
"SET/COAST SW"- C1A06.
"BRAKE SW"- C1A05.
"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. With Rain Sensor Symptom Table.
5.REPLACE ICC SENSOR INTEGRATED UNIT
1. Replace the ICC sensor integrated unit. Exploded View.
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