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DTC Description
 
 
DTC DETECTION LOGIC
DTC No.M.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
U224087CAN comm err (ECM)
[Controller area network communication error (engine control module)]
1Diagnosis condition
  • When electric motor switch is ON.
  • When the power supply voltage is normal.
Signal (terminal)CAN communication signal
ThresholdWhen CAN communication signal is not continuously transmitted to ECM.
Diagnosis delay time2 seconds or more
2Diagnosis condition
  • When electric motor switch is ON.
  • When the power supply voltage is normal.
Signal (terminal)CAN communication signal
ThresholdWhen CAN communication signal is not continuously received from ECM.
Diagnosis delay time2 seconds or more
 
 
POSSIBLE CAUSE
noteConfirm if DTC is Stored DTC or Active DTC. If DTC is Active DTC, proceed with Diagnosis Procedure. If DTC is Stored DTC, clear DTC. Do not replace the ABS actuator and electric unit (control unit) for a Stored DTC DTC.
Stored DTC DTCActive DTC DTC
  • Harness or connector
  • CAN communication line
CAN communication system
 
 
FAIL-SAFE
The following functions are suspended.
  • ASC function
  • TCS function
  • Brake limited slip differential (BLSD) function
  • Brake assist function
  • Brake force distribution function
  • hill start assist function
  • Electric parking brake function
 
 
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE" has been previously conducted, always electric motor switch OFF (Auto ACC function OFF) before conducting the next test.
: .
 
2.CHECK DTC DETECTION
With M.U.T.-III SE
  1. Electric motor switch OFF (Auto ACC function OFF).
  2. Electric motor switch ON.
    noteWait at least 10 seconds after electric motor switch ON.
  3. Perform Diagnostic Trouble Code for “ABS".
Is DTC “U2240-87" detected?
-1“Active DTC" is displayed: Refer to Diagnosis Procedure.
-2“Stored DTC" is displayed: INSPECTION END (Erase the memory of Diagnostic Trouble Code results.)
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END