C1A21

C1A21 UNIT HIGH TEMP

Description

ICC sensor integrated unit integrates the temperature sensor.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Turn the ignition switch OFF.
2.Wait for 10 minutes or more to cool the ICC sensor integrated unit.
3.Start the engine.
4.Turn the MAIN switch of ICC system ON.
5.Perform "All DTC Reading" with CONSULT.
6.Check if the "C1A21" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS".
Is "C1A21" detected as the current malfunction?
YES- Refer to "Diagnosis Procedure" .
NO- Refer to "Intermittent Incident" Intermittent Incident.


Diagnosis Procedure


1. CHECK ENGINE COOLING SYSTEM

Check for any malfunctions in engine cooling system.
Is engine cooling system normal?
YES- Replace the ICC sensor integrated unit. Refer to "Exploded View" Exploded View.
NO- Repair engine cooling system.


Special Repair Requirement


DESCRIPTION

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed.
- Removal and installation of ICC sensor integrated unit
- Replacement of ICC sensor integrated unit

SPECIAL REPAIR REQUIREMENT


1. LASER BEAM AIMING ADJUSTMENT OF ICC SENSOR INTEGRATED UNIT

Adjust the laser beam aiming of the ICC sensor integrated unit. Refer to "LASER BEAM AIMING ADJUSTMENT : Description" Description.
- GO TO 2.

2. CHECK ICC SYSTEM

1.Erase the "Self Diagnostic Result", and then perform "All DTC Reading" again after performing the action test. (Refer to "ACTION TEST : Description" Description for action test.)
2.Check that the ICC system is normal.
- WORK END