Trouble symptom
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Inspection procedure number
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Reference page
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Cannot communicate with KOS&OSS-ECU using the M.U.T.-III.
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1
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The keyless operation key or spare key cannot be registered using
the M.U.T.-III.
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2
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Abnormality in KOS&OSS-ECU power supply and earth circuits.
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3
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Keyless operation warning display does not disappear.
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4
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No door will be locked or unlocked by operating a lock/unlock
switch on any door.
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5
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Driver’s door lock/unlock switch does not work.
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6
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Tailgate lock/unlock switch does not work.
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7
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Keyless entry function does not work.
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8
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KOS timer lock function does not work.
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9
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Keyless entry hazard answer back function or the room lamp answer
back function does not work normally.
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10
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Multimode keyless entry function does not work at all.
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11
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Outer buzzer does not sound.
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12
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Vehicle power does not turn "ON" (Not possible with both of power
supply mode "ACC" and "ON").
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13
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Engine does not start (Cranking is not performed).
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14
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Vehicle power cannot be turned "OFF" when the shift position is in
"P" (Power supply mode "ON" to "ACC" is possible).
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15
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Electric steering lock does not become locked (Power supply mode
is "OFF").
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16
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ACC power auto cut function does not work normally.
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17
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Vehicle power cannot be turned "OFF".
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18
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