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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 ignition 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 ignition 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 ignition 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 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
  • 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 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 “C1073-1C” 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 IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END