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DTC Description
 
 
DTC DETECTION LOGIC
DTCM.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detecting condition
C1220-54INCOMP AIR BLEEDING
(Incomplete air bleeding)
Diagnosis conditionIgnition switch: ON
Signal—
ThresholdAir bleeding of electro-hydraulic coupling oil was incomplete.
Diagnosis delay time—
 
 
POSSIBLE CAUSE
  • Incomplete air bleeding of electro-hydraulic coupling oil
  • Electro-hydraulic coupling
 
 
FAIL-SAFE
Although AWD control is canceled, the vehicle can drive at 2WD condition.
 
 
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
: .
 
2.DTC REPRODUCTION PROCEDURE
With M.U.T.-III SE
  1. Erase self-diagnostic results for “ALL MODE AWD/4WD”.
  2. Turn the ignition switch OFF, and wait for 10 seconds or more.
  3. Turn the ignition switch ON, and wait for 15 seconds or more.
  4. Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is DTC “C1220-54” detected?
Proceed to diagnosis procedure. Refer to Diagnosis Procedure.
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END