AIR CONDITIONING SYSTEM PROBLEM SYMPTOMS TABLE

Front Air Conditioning System:
Symptom Suspected Area See page
Warm air does not flow immediately after engine start with temperature control dial at max. hot Troubleshooting flowchart

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Cabin temperature does not drop Troubleshooting flowchart

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Air flow control: No blower operation Blower resistor

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Blower motor

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Front blower switch

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Harness or connector -
Air flow control: No blower control Blower resistor

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Front blower switch

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Harness or connector -
Does not operate compressor operate CAN communication system

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Volume of refrigerant

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Refrigerant pressure

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Air mix damper control switch

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Pressure sensor (1KD-FTV, 2KD-FTV, 2TR-FE)

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Pressure switch (5L-E)

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Evaporator temperature sensor

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w/ pulley compressor assembly (1KD-FTV, 2KD-FTV)

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w/ pulley compressor assembly (5L-E)

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w/ pulley compressor assembly (2TR-FE)

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ECM (1KD-FTV, 2KD-FTV)

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ECM (5L-E)

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ECM (2TR-FE)

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Harness or connector -
Rear Cooler:
Symptom Suspected Area See page
Air flow control: No blower operation Blower resistor

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Blower motor

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Cooler control switch

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Rear blower switch

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Harness or connector -
Air flow control: No blower control Blower resistor

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Cooler control switch

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Harness or connector -
Temperature control: No cooler air comes out Volume of refrigerant

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Drive belt tension

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Refrigerant pressure

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Pressure sensor (1KD-FTV, 2KD-FTV, 2TR-FE)

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Pressure switch (5L-E)

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Rear evaporator temperature sensor

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Expansion valve

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w/ pulley compressor assembly (1KD-FTV, 2KD-FTV)

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w/ pulley compressor assembly (5L-E)

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w/ pulley compressor assembly (2TR-FE)

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Harness or connector -
Rear Heater:
Symptom Suspected Area See page
Air flow control: No blower operation Blower resistor

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Blower motor

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Heater switch

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Rear blower switch

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Harness or connector -
Air flow control: No blower control Blower resistor

Click here

Rear blower switch

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Harness or connector -
Temperature control: No warm air comes out Engine coolant volume (1KD-FTV, 2KD-FTV)

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Engine coolant volume (5L-E)

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Engine coolant volume (2TR-FE)

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Heater switch

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Blower motor

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Blower resistor

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Harness or connector -