Toyota RAV4 manuals

Toyota Sienna Service Manual: Precaution

NOTICE:
  • When the ignition switch is turned off and the engine temperature is high, the cooling fans may operate for approximately 3 minutes.
  • After turning the ignition switch off, keep hands and objects away from the fans when they are operating.

HINT: If all of the following are met for a certain period of time during a few minute period immediately before the engine is stopped, the electric fans will continue to operate for 3 minutes after the engine is stopped. This is performed to ensure restartability and stabilize idle speed.

– The intelligent tester indicates a very high coolant temperature.

– The intelligent tester indicates a high outside air temperature.

– The vehicle has been driven under high load (driving on an uphill or equivalent).

The following sensors are used for this control:

– Coolant temperature sensor

– Outside air temperature sensor

– MAF sensor

– Vehicle speed sensors

PARTS LOCATION

PARTS LOCATION

SYSTEM DIAGRAM

SYSTEM DIAGRAM

Cooling fan system
...

On-vehicle inspection
1. INSPECT COOLING FAN SYSTEM (a) Put the vehicle in the following conditions (1) The engine switch is off. (2) The coolant temperature is less than 95°C (203°F). (3) The battery voltage is ...

Other materials:

Intake Air Temperature Circuit
DESCRIPTION The Intake Air Temperature (IAT) sensor, mounted on the Mass Air Flow (MAF) meter, monitors the IAT. The IAT sensor has a built-in thermistor with a resistance that varies according to the temperature of the intake air. When the IAT is low, the resistance of the thermistor i ...

Components
REMOVAL 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 2. REMOVE FRONT BUMPER ASSEMBLY 3. REMOVE FOG LIGHT ASSEMBLY  Disengage the 2 claws  Disengage the 2 pins and remove the fog light assembly. DISASSEMBLY 1. REMOVE FOG LIGHT BULB  Turn in the dir ...

How to proceed with troubleshooting
HINT:  Use this procedure to troubleshoot the engine immobiliser system.  The intelligent tester should be used in steps 4, 5 and 7. 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK 3 CRANK ENGINE FOR MORE THAN 10 SECONDS 4 CHECK FOR DTC C ...

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