DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.INTERVIEW CUSTOMER
Interview the customer to obtain as much information as possible about the conditions and environment under which the malfunction occurred.
>> GO TO 2.
2.SYMPTOM CHECK
Verify symptoms.
>> GO TO 3.
3.CHECK FOR DTCS
With CONSULT
Is any DTC detected? YES >> GO TO 4.
NO >> GO TO 5.
4.PERFORM DTC DIAGNOSTIC PROCEDURE
Perform the diagnostic procedure for the detected DTC. Refer to HAC-134, "DTC Inspection Priority Chart".
>> GO TO 7.
5.OPERATION CHECK
Perform the operation check. Refer to HAC-148, "Work Procedure".
>> GO TO 6.
6.SYMPTOM DIAGNOSIS
Check the symptom diagnosis table. Refer to HAC-174, "Symptom Table".
>> GO TO 8.
7.VERIFY REPAIR.
With CONSULT
Is any DTC detected? YES >> GO TO 4.
NO >> GO TO 8.
8.PERFORM FINAL OPERATION CHECK
Perform the operation check. Refer to HAC-148, "Work Procedure".
Does it operate normally? YES >> Inspection End.
NO >> GO TO 2.
OPERATION INSPECTION
Work Procedure
DESCRIPTION
The purpose of the operational check is to check that the individual system operates normally.
Check condition : Engine running at normal operating temperature.
Check condition : Blower control dial in OFF position.
Check condition : REC off (LED extinguished).
Check condition : VENT selected (LED illuminated).
Check condition : DEF off (LED extinguished).
OPERATION INSPECTION
1.CHECK BLOWER
Is the test result normal? YES >> GO TO 2.
NO >> Refer to HAC-167, "Diagnosis Procedure".
2.CHECK A/C SWITCH LED
Is the test result normal? YES >> GO TO 3.
NO >> Refer to HAC-166, "FRONT A/C CONTROL : Diagnosis Procedure".
3.CHECK A/C SWITCH
Confirm that the compressor clutch engages (sound or visual inspection).
Is the test result normal? YES >> GO TO 4.
NO >> Refer to HAC-171, "Diagnosis Procedure".
4.CHECK FRONT AIR CONTROL MODE LEDS
Is the test result normal? YES >> GO TO 5.
NO >> Refer to HAC-166, "FRONT A/C CONTROL : Diagnosis Procedure".
5.CHECK DISCHARGE AIR
Is the test result normal? YES >> GO TO 6.
NO >> Refer to HAC-174, "Symptom Table".
6.CHECK REC LED
Is the test result normal? YES >> GO TO 7.
NO >> Refer to HAC-166, "FRONT A/C CONTROL : Diagnosis Procedure".
7.CHECK INTAKE DOOR OPERATION
Is the test result normal? YES >> GO TO 8.
NO >> Refer to HAC-157, "Diagnosis Procedure".
8.CHECK TEMPERATURE DECREASE
Is the test result normal? YES >> GO TO 9.
NO >> Refer to HAC-175, "Component Function Check".
9.CHECK TEMPERATURE INCREASE
Is the test result normal? YES >> Inspection End.
NO >> Refer to HAC-177, "Component Function Check".
SYSTEM SETTING
Target Evaporator Temp Upper Limit
DESCRIPTION
Set the target evaporator temperature upper limit.
HOW TO SET
With CONSULT
Perform the “TARGET EVAPORATOR TEMP UPPER LIMIT SETTING” of HVAC work support item.
DOOR MOTOR STARTING POSITION RESET
Description
NOTE: During reset, DEF switch indicator blinks.
Work Procedure
1.PERFORM DOOR MOTOR STARTING POSITION RESET
With CONSULT
>> Inspection End.
C1708, C1709, C1710, C1711 transmitter (no data)
DTC Logic
NOTE:
The Signal Tech II Tool [- (J-50190)] can be used to perform the following
functions. Refer to the Signal Tech II
User Guide for additional information.
Activate and display TPMS sensor IDs
Display tire pressure reported by the TPMS sensor
Read TPMS DTC ...
Diagnosis and repair workflow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1. OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain as much information as possible about the
conditions and environment under
which the malfunction occurred.
>> GO TO 2.
2. CONFIRM THE SYMPTOM
Check the malfunction on the ...
U1010 control unit (CAN)
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction Detected Condition
Possible cause
U1010
CONTROL UNIT (CAN)
BCM detected internal CAN communication circuit malfunction.
BCM
Diagnosis Procedure
1.REPLACE BCM
When DTC “U1010” is detected, repla ...