DTC U0164:00 [HEAT PUMP CONTROL UNIT]
id0702l5718200
Outline
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System malfunction location |
Communication error with dash-electrical supply unit |
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Detection condition
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• The heat pump control unit cannot receive a CAN signal from the dash-electrical supply unit.
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Fail-safe
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• The value of the data which is not received from the dash-electrical supply unit is fixed at the specified value.
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Possible cause
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• Malfunction in CAN communication line between dash-electrical supply unit and heat pump control unit
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System wiring diagram
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Not applicable
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Diagnostic Procedure