PROBLEM SYMPTOMS TABLE
HINT:
Symptom |
Suspected Area |
See page |
---|---|---|
All functions of the A/C system do not operate |
IG power source circuit |
|
Back-up power source circuit |
|
|
Air conditioning control panel circuit |
|
|
A/C amplifier |
|
|
Air flow control: No blower operation |
Blower motor circuit |
|
Air conditioning control panel circuit |
|
|
A/C amplifier |
|
|
Air flow control: No blower control |
Blower motor circuit |
|
Air conditioning control panel circuit |
|
|
A/C amplifier |
|
|
Air flow control: Insufficient air flow |
Blower motor circuit |
|
A/C amplifier |
|
|
Temperature control: No cool air comes out |
Refrigerant volume |
- |
Refrigerant pressure |
|
|
Air conditioning pressure sensor circuit |
|
|
Air conditioning compressor magnetic clutch circuit*1 |
|
|
Compressor lock sensor circuit*1 |
|
|
Compressor solenoid circuit |
|
|
Air mix damper control servo motor circuit (for Driver side) |
|
|
Air mix damper control servo motor circuit (for Front passenger side) |
|
|
Evaporator temperature sensor circuit |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
Air conditioning control panel circuit |
|
|
Expansion valve |
|
|
A/C amplifier |
|
|
ECM*1 |
|
|
ECM*2 |
|
|
Temperature control: No warm air comes out |
Air mix damper control servo motor circuit (for Driver side) |
|
Air mix damper control servo motor circuit (for Front passenger side) |
|
|
Evaporator temperature sensor circuit |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
Air conditioning control panel circuit |
|
|
A/C amplifier |
|
|
ECM*1 |
|
|
ECM*2 |
|
|
Temperature control: Output air is warmer or cooler than the set temperature or response is slow |
Refrigerant volume |
- |
Refrigerant pressure |
|
|
Air conditioning compressor magnetic clutch circuit*1 |
|
|
Compressor lock sensor circuit*1 |
|
|
Compressor solenoid circuit |
|
|
Solar sensor circuit (for Driver side) |
|
|
Solar sensor circuit (for Front passenger side) |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
Air mix damper control servo motor circuit (for Driver side) |
|
|
Air mix damper control servo motor circuit (for Front passenger side) |
|
|
Air inlet damper control servo motor circuit |
|
|
Air conditioning control panel circuit |
|
|
Radiator unit sub-assembly |
|
|
Expansion valve |
|
|
A/C amplifier |
|
|
ECM*1 |
|
|
ECM*2 |
|
|
Temperature control: No temperature control (only Max. cool or Max. warm) |
Air mix damper control servo motor circuit (for Driver side) |
|
Air mix damper control servo motor circuit (for Front Passenger side) |
|
|
Room temperature sensor circuit |
|
|
Ambient temperature sensor circuit |
|
|
Evaporator temperature sensor circuit |
|
|
Solar sensor circuit (for Driver side) |
|
|
Solar sensor circuit (for Front passenger side) |
|
|
Air conditioning control panel circuit |
|
|
A/C amplifier |
|
|
No air inlet control |
Air inlet damper control servo motor circuit |
|
Air conditioning control panel circuit |
|
|
A/C amplifier |
|
|
No air flow mode control |
Air outlet damper control servo motor circuit |
|
Air conditioning control panel circuit |
|
|
A/C amplifier |
|
|
Engine does not start for heater |
Air conditioning compressor magnetic clutch circuit*1 |
|
Compressor lock sensor circuit*1 |
|
|
Compressor solenoid circuit |
|
|
A/C amplifier |
|
|
Blinking of A/C indicator |
Compressor solenoid circuit |
|
A/C amplifier |
|
|
Diagnostic trouble codes (DTCs) are not recorded. Set mode is cleared when ignition switch is off. |
Back-up power source circuit |
|
A/C amplifier |
|
Customizable features
1. Vehicles with TFT type multi-information display: Some function settings can
be changed by operating the multi-information display.
2. Settings that can be changed by your Toyota dealer
Definition of symbols: O = Available, -- = Not available
...
Operation Check
OPERATION CHECK
1. CHECK BASIC OPERATION
(a) Conditions necessary for the power back door to open:
The power back door main switch is off (switch is not pressed).
The back door is unlocked (except wireless operation).
The vehicle speed is 3 k ...
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
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