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:

BMW Roadside Assistance
Concept Contact the BMW Group Roadside Assistance if assistance is needed in the event of a breakdown. General information In the event of a breakdown, data on the vehicle's condition is transmitted to the BMW Roadside Assistance. There are various ways of contacting BMW Roadside Assistance. Via ...

Terminals of ECU
1. CHECK OUTER MIRROR CONTROL ECU LH Disconnect the O9 and O10 connectors. Measure the voltage and resistance according to the value(s) in the table below. Voltage Resistance If the result is not as specified, there may be a malfunction on the wire harness side.  Recon ...

Operating the HomeLink
Press the appropriate HomeLink® button. The HomeLink® indicator light on the HomeLink® transceiver should turn on. The HomeLink® continues to send a signal for up to 20 seconds as long as the button is pressed. Reprogramming a HomeLink® button Press and hold the desired HomeLink® button ...

© 2011-2023 Copyright www.tsienna.net