Toyota Venza manuals

Toyota Venza: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

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.

Cooling Fan System

Symptom

Suspected Area

See page

Cooling fan does not operate

Cooling fan motor


No. 2 cooling fan motor


FAN NO. 1 relay


FAN NO. 2 relay


FAN NO. 3 relay


Cooling fan circuit


ECM


Cooling fan does not stop

FAN NO. 1 relay


FAN NO. 3 relay


Cooling fan circuit (for short circuit)


ECM


Cooling fan speed does not change

FAN NO. 2 relay


Cooling fan circuit


ECM


System Diagram
SYSTEM DIAGRAM ...

Cooling Fan Circuit
DESCRIPTION The ECM turns on or off the fan relays using signals calculated from the engine coolant temperature, air conditioning (ON/OFF), air conditioner refrigerant pressure, engine speed, and ...

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ECU Power Source Circuit
DESCRIPTION When the ignition switch is turned to ON, voltage from the ECM's MREL terminal is applied to the EFI MAIN relay. This causes the contacts of the EFI MAIN relay to close, which supplies power to terminal +B of the TCM. WIRING DIAGRAM PR ...

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