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DTC Description
 
 
DTC DETECTION LOGIC
DTC No.M.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
U214057CAN comm err (ECM)
[Controller area network communication error (engine-ECU)]
Diagnosis condition—
Signal (terminal)—
ThresholdMAC communication error.
Diagnosis delay time—
 
 
POSSIBLE CAUSE
  • Chassis control module used in vehicles is installed in the vehicle
  • Chassis control module
  • PHEV ECU
 
 
FAIL-SAFE
-
 
 
DTC CONFIRMATION PROCEDURE
1.CHECK DTC PRIORITY
If DTC U2140-57 is displayed with DTC U1327-52 or U1327-54, first perform the trouble diagnosis for DTC U1327-52 or U1327-54.
Is DTC U1327-52 or U1327-54 detected?
.
 
2.CHECK MAC DIAGNOSIS
With M.U.T.-III SE
  1. Turn the electric motor switch ON.
  2. Perform “MAC Diagnosis” mode of “CHASSIS CONTROL” using M.U.T.-III SE.
Is DTC U2140-57 detected?
Refer to Diagnosis Procedure.
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END