Toyota Sienna Service Manual: Cooling fan ecu

Toyota Sienna Service Manual / Engine / 2Gr-fe cooling / 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).

HINT:

If the fan does not operate, there may be a short circuit.
If the fan remains operating, there may be an open circuit.

(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:

Manual Up / Down Function does not Operate on Rear RH Only
DESCRIPTION If the manual UP/DOWN function does not operate, the power window motor, the regulator switch or the wire harness may be malfunctioning. WIRING DIAGRAM INSPECTION PROCEDURE 1 CHECK WIRE HARNESS (POWER SOURCE) Disconnect the P39 regulator switch connector. Turn ...

Installation
1. INSTALL BLOWER ASSEMBLY (a) Install the blower assembly. (b) Install the bolt, the 2 screws and the nut. Torque: Bolt A 9.8 N*m (100 kgf*cm, 87 in.*lbf) (c) Install the 2 clamps and 2 nuts and wire harness. 2. INSTALL INSTRUMENT PANEL SUB-ASSEMBLY WITH PASSENGER AIRBAG ASSEMBLY H ...

Data list / active test
1. DATA LIST HINT: Using the intelligent tester's DATA LIST allows the status of a switch, sensor, actuator and other items to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time. Connect the intelligent tester (with CAN VIM) to t ...