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Use the M.U.T.-III to read diagnosis code (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points  ).
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- Use the M.U.T.-III or a voltmeter to check input signals (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points ).
- The input signals below can be checked by connecting the M.U.T.-III or a voltmeter to the diagnosis connector.
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If a fault is found at the input signal check, refer to trouble symptom chart .
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Input signals
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Requirements for sounding buzzer
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Ignition switch (ACC)
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When turned from the LOCK (OFF) position to the ACC position
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Ignition switch (IG1)
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When turned from ACC to ON
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Back-up lamp switch
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When the ignition switch is turned ON and the shift lever is moved to the R position.
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Inhibitor switch ("R" position)
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When the ignition switch is turned ON and the selector lever is moved to the R position.
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Key reminder switch <Vehicles with keyless entry system>
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When the inserted ignition key is pulled out
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Hazard warning lamp switch
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When the switch is turned from off to on
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Front fog lamp switch
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Rear fog lamp switch <Vehicles for China>
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Driver’s door switch
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When the driver’s door is opened
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All of the door switches
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A door is opened when all the doors are closed
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Tailgate switch
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When the tailgate is opened
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Driver’s door lock actuator
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When the driver’s key cylinder or inside lock knob is unlocked or locked
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Passenger’s door lock key cylinder switch
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When the passenger’s key cylinder is unlocked or locked
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Tailgate key switch <vehicles without keyless entry system>
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When the tailgate key cylinder is unlocked or locked.
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Driver’s seat belt switch
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When the driver’s seat belt is fastened
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Passenger’s seat belt switch
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When the front passenger is occupied and the seat belt is fastened
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Electric-folding outside mirror switch
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When the electric-folding outside mirror is operated
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Vehicle speed signal
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When the vehicle speed has reached 10 km/h or more
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Column switch
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Tail lamp switch
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When the lighting switch is moved from the automatic lamp position to the tail lamp position.
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Headlamp switch
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When the lighting switch is moved from the tail lamp position to the automatic lamp position.
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Dimmer switch
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When the switch is turned from off to on
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Passing lamp switch
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Turn-signal lamp switch (LH)
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Turn-signal lamp switch (RH)
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Wind shield mist wiper switch
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Windshield intermittent wiper switch
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Windshield low-speed wiper switch
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Windshield high-speed wiper switch
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Windshield intermittent wiper volume
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When the windshield intermittent wiper volume is rotated from "FAST" to "SLOW" (a pulse is sent around the volume middle position)
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Windshield washer switch
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When the switch is turned from off to on
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Rear wiper switch
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Rear washer switch
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Keyless entry transmitter
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Switches
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When the switch is turned from off to on
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Interior lamp loaded signal <Vehicles for keyless entry system>
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When a load is applied through multi-purpose fuse No.18
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