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DTC Description
 
 
DTC DETECTION LOGIC
DTC No.M.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
U1CA1-08LIN communication 2
(Local interconnect network communication 2)
Diagnosis conditionWhen electric motor switch is ON
Signal (Terminal)LIN (A/C control) signal
ThresholdA/C amp. is not transmitting or receiving LIN communication with A/C switch assembly or rear air control (with rear air control)
Diagnosis delay time2 second or more
 
 
POSSIBLE CAUSE
  • A/C switch assembly
  • Rear air control (with rear air control)
  • A/C amp.
 
 
FAIL-SAFE
—
 
 
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
With M.U.T.-III SE
  1. Change the power supply mode of the electric motor switch to ON (READY indicator: ON).
  2. Select “Diagnostic Trouble Code” mode of “HVAC” using M.U.T.-III SE.
  3. Check DTC.
Is DTC detected?
Refer to Diagnosis Procedure.
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END