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DTC Description
 
 
DTC DETECTION LOGIC
DTCM.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
U217657CAN comm err (Keyless operation key)
[CAN comm err (Keyless operation key)]
Diagnosis condition—
Signal (terminal)—
ThresholdMAC communication error
Diagnosis delay time—
 
 
POSSIBLE CAUSE
  • MAC communication error
  • ECM used in other vehicles is installed in the vehicle
  • ECM
 
 
FAIL-SAFE
Not applicable
 
 
DTC CONFIRMATION PROCEDURE
1.CHECK DTC PRIORITY
If DTC U2176 is displayed with DTC U1327, first perform the trouble diagnosis for DTC U1327.
Is DTC U1327 detected?
Proceed to DTC Description.
.
 
2.CHECK MAC DIAGNOSIS
With M.U.T.-III SE
  1. Ignition switch ON.
  2. Perform “MAC Diagnosis” mode of “ENGINE” using M.U.T.-III SE.
Is DTC U2176 detected?
Refer to Diagnosis Procedure.
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END