Toyota RAV4 manuals

Toyota Sienna Service Manual: Fuel Pump Primary Circuit

Fuel Pump Primary Circuit

DESCRIPTION

Fuel Pump Primary Circuit

WIRING DIAGRAM

WIRING DIAGRAM

This troubleshooting procedure is based on the premise that the engine is started. If the engine is not started, proceed to the problem symptoms table (See page ES-27).

INSPECTION PROCEDURE

1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER

(a) Connect the intelligent tester to the DLC3.

(b) Turn the ignition switch to the ON position and turn the intelligent tester ON.

(c) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / FUEL PUMP SP CTL.

(d) Check the operation of the relay while operating it using the intelligent tester.

OK: Operating noise can be heard from the relay.

2 INSPECT RELAY (FUEL PUMP RELAY)

INSPECT RELAY (FUEL PUMP RELAY)

(a) Remove the FUEL PUMP relay from the engine room junction block.

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance

(c) Reinstall the FUEL PUMP relay.

3 CHECK HARNESS AND CONNECTOR (FUEL PUMP RELAY - ECM)

CHECK HARNESS AND CONNECTOR (FUEL PUMP RELAY - ECM)

(a) Remove the FUEL PUMP relay from the engine room junction block.

(b) Disconnect the E11 ECM connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard resistance

(d) Reconnect the ECM connector.

(e) Reinstall the FUEL PUMP relay

REPLACE ECM (See page ES-498)

System Too
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Random / Multiple Cylinder Misfire Detected
DESCRIPTION When the engine misfires, high concentrations of hydrocarbons (HC) enter the exhaust gas. High HC concentration levels can cause increase in exhaust emission levels. Extremely ...

Other materials:

Removal and installation of fuel control parts
(a) PLACE FOR REMOVING AND INSTALLING FUEL SYSTEM PARTS (1) Work in a location with good air ventilation that does not have welders, grinders, drills, electric motors, stoves, or any other ignition sources. (2) Never work in a pit or near a pit as vaporized fuel will collect in those places. ...

Fuel pump shut off system
To minimize the risk of fuel leakage when the engine stalls or when an airbag inflates upon collision, the fuel pump shut off system stops the supply of fuel to the engine. Follow the procedure below to restart the engine after the system is activated. Vehicles without a smart key system ...

Using a Bluetooth® Phone
The hands-free system is a function that allows you to use your cellular phone without touching it. This system supports Bluetooth®. Bluetooth® is a wireless data system that allows the cellular phone to wirelessly connect to the hands-free system and make/receive calls. Before making a p ...

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