Toyota RAV4 manuals

Toyota Sienna Service Manual: Cooling fan ecu

ON-VEHICLE INSPECTION

1. INSPECT COOLING FAN ECU

INSPECT COOLING FAN ECU

(a) Inspect the input voltage.

(1) Disconnect the cooling fan ECU connector.

(2) Turn the ignition switch to the ON position.

Check the voltage of the +B terminal of the disconnected wire harness side connector.

Standard voltage: 9 to 14 V

If the result is not as specified, inspect the power source system (fusible link, fuse, wire harness and relay).

(b) Inspect the cooling fan motor (See page CO-19).

(c) Measure the resistance between terminals RFC (ECM) and SI (cooling fan ECU) of the wire harness side connectors.V

HINT:

(d) Inspect the ECM power source circuit and ground circuit.

Cooling fan motor
On-vehicle inspection 1. No. 1 Cooling fan motor (A) check that the motor turns smoothly when the battery is connected to the fan motor connector. (B) measure the current while the motor is ...

Cooling fan relay
On-vehicle inspection 1. Cooling fan relay (a) Remove the relay from engine room relay block No. 1. (b) Measure the resistance of the relay. Standard resistance If the result is not as ...

Other materials:

Initialization
1. RESET  Reset the power slide door system: The power slide door ECU records the fully open position of the power slide door in its memory and the power slide door fully opens and closes based on this memory. The power slide door cannot operate without this memory. In the case wh ...

Front passenger side power window switch
Inspection 1. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY  Check the resistance between the switch terminals when the switch is operated. Standard If the result is not as specified, replace the switch assembly. ...

Inspection
1. INSPECT SHOCK ABSORBER ASSEMBLY FRONT LH (a) Compress and extend the shock absorber rod and check that there is no unusual resistance or unusual sound during operation. If there is any abnormality, replace the shock absorber assembly front LH with a new one. NOTICE: When disposing of ...

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