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DTC Description
 
 
DTC DETECTION LOGIC
DTC No.M.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
C10731CVacuum sensor
(Vacuum sensor)
1Diagnosis condition
  • When electric motor switch is ON.
  • When the power supply voltage is normal.
Signal (terminal)Vacuum sensor signal
ThresholdWhen an open circuit is detected in brake vacuum sensor circuit.
Diagnosis delay time1 second or less
2Diagnosis condition
  • When electric motor switch is ON.
  • When the power supply voltage is normal.
Signal (terminal)Vacuum sensor signal
ThresholdWhen a short circuit is detected in brake vacuum sensor circuit.
Diagnosis delay time1 second or less
3Diagnosis condition
  • When electric motor switch is ON.
  • When the power supply voltage is normal.
Signal (terminal)Vacuum sensor signal
ThresholdWhen a malfunction is detected in brake vacuum sensor noise.
Diagnosis delay time1 second or less
 
 
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
  • ABS actuator and electric unit (control unit) power supply system
  • Fuse
  • Fusible link
  • 12V battery
  • Harness or connector
  • Brake vacuum sensor (vacuum piping)
  • ABS actuator and electric unit (control unit)
  • ABS actuator and electric unit (control unit) power supply system
  • Fuse
  • Fusible link
  • 12V battery
 
 
FAIL-SAFE
The following functions are suspended.
Brake assist 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 “C1073-1C" 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