DTC U3000:49 [CLIMATE CONTROL UNIT (FULL-AUTO AIR CONDITIONER)]


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System malfunction location

Climate control unit internal malfunction

Detection condition
•  Malfunction inside climate control unit detected.
Fail-safe
Possible cause
•  Climate control unit malfunction
System wiring diagram

Diagnostic Procedure

Step

Inspection

Action

1
PERFORM DTC INSPECTION AND VERIFY IF MALFUNCTIONING PART IS CLIMATE CONTROL UNIT
•  Clear climate control unit DTCs using the M-MDS.
•  Verify the DTCs.
•  Is DTC U3000:49 displayed?
Yes
Replace the climate control unit, then go to the next step.
No
Go to the next step.
2
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning part according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.