Toyota Venza: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
|
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 |
|
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- *1: for 2GR-FE
- *2: for 1AR-FE
Customize Parameters
CUSTOMIZE PARAMETERS
NOTICE:
When the customer requests a change in a function, first make sure that
the function can be customized.
Be sure to make a note of the current settings be ...
Terminals Of Ecu
TERMINALS OF ECU
1. A/C AMPLIFIER
HINT:
Check from the rear of the connector while it is connected to the A/C amplifier.
Terminal No.
(Symbol)
Wiring Color
Te ...
Other materials about Toyota Venza:
Power Back Door Control Switch
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT POWER BACK DOOR OPENER / CLOSER SWITCH
(a) Measure the resistance of the switch.
Standard resistance:
Tester Connection
Condition
S ...
Installation
INSTALLATION
PROCEDURE
1. TEMPORARILY INSTALL SLIDING ROOF HOUSING ASSEMBLY
(a) Temporarily install the sliding roof housing panel with the 18 nuts.
NOTICE:
When installing the housing to the vehicle, first install the housing
center front and ...
Air Mix Damper Control Servo Motor Circuit (Driver Side) (B1446/46)
DESCRIPTION
The air mix control servo motor sends pulse signals to indicate the damper position
to the A/C amplifier. The A/C amplifier activates the motor (normal or reverse)
based on these signals to move the air mix damper (driver side) to any position ...
0.1147