Toyota RAV4 manuals

Toyota Sienna Service Manual: 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 between 9 and 14 V.

(4) The A/C switch is OFF.

(b) Clamp the 400 A probe of an ammeter over the M+ wire of each cooling fan motor.

(c) Turn the ignition switch to the ON position and wait for approximately 10 seconds. Check that the fan stops.

(d) Start the engine. Check that the fan stops with the engine idling.

HINT:

(e) Check that the fan operates when the A/C switch is turned ON (MAX COOL and the magnetic clutch is operating).

Standard current

HINT:

The coolant temperature is less than 95°C (203°F).

(f) Check that the fan operates when the engine coolant temperature sensor connector is disconnected.

Standard current

INSPECT COOLING FAN SYSTEM

(g) After the engine is warmed up, check that the fan operates as shown in the illustration.

HINT:

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 of ...

Coolant
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High Temperature
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