Trouble symptom
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Inspection procedure No.
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Reference page
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Communication with the M.U.T.-III is not possible
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1
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Cool air does not come
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2
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The blower does not work
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3
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The blower air volume cannot be changed
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4
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The inside/outside air changeover is impossible
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5
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The A/C compressor does not work
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6
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A/C outlet air temperature cannot be set
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7
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Air outlets changeover is impossible
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8
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Ambient temperature sensor system
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9
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A/C pressure sensor system
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10
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Blower motor power supply system
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11
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A/C-ECU power supply system
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12
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The PTC heater does not work <4N1>
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13
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