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DTC Description
 
 
DTC DETECTION LOGIC
DTC No.M.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
U224A87CAN comm err (AWD/4WD)
[Controller area network communication error (AWD/4WD control unit)]
1Diagnosis condition
  • When ignition switch is ON.
  • When the power supply voltage is normal.
Signal (terminal)CAN communication signal
ThresholdWhen CAN communication signal is not continuously transmitted to AWD control unit.
Diagnosis delay time2 seconds or more
2Diagnosis condition
  • When ignition switch is ON.
  • When the power supply voltage is normal.
Signal (terminal)CAN communication signal
ThresholdWhen CAN communication signal is not continuously received from AWD control unit.
Diagnosis delay time2 seconds or more
 
 
POSSIBLE CAUSE
noteConfirm if DTC is PAST or CRNT. If DTC is CRNT, proceed with Diagnosis Procedure. If DTC is PAST, clear DTC. Do not replace the ABS actuator and electric unit (control unit) for a PAST DTC.
PAST DTCCRNT DTC
  • Harness or connector
  • CAN communication line
CAN communication system
 
 
FAIL-SAFE
Normal control
 
 
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always ignition switch OFF (Auto ACC function OFF) before conducting the next test.
: .
 
2.CHECK DTC DETECTION
With M.U.T.-III SE
  1. Ignition switch OFF (Auto ACC function OFF).
  2. Start the engine.
    noteWait at least 10 seconds after start the engine.
  3. Perform self-diagnosis for "ABS".
Is DTC "U224A-87" detected?
-1"Active DTC" is displayed: Refer to Diagnosis Procedure.
-2"Stored DTC" is displayed: INSPECTION END (Erase the memory of self-diagnosis results.)
-1To check malfunction symptom before repair: Refer to Intermittent Incident Intermittent Incident.
-2Confirmation after repair: INSPECTION END