Toyota 4Runner: IG Power Source Circuit

Toyota 4Runner Service Manual / Steering / Power Assist Systems / Power Steering System / IG Power Source Circuit

DESCRIPTION

When the ignition switch is turned to ON, the IG power source circuit supplies positive (+) voltage to the power steering ECU assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (POWER STEERING ECU ASSEMBLY - BATTERY AND BODY GROUND)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Power Steering Warning Light Circuit

DESCRIPTION The power steering ECU assembly is connected to the combination meter assembly via CAN communication. If the power steering ECU assembly detects a malfunction, the power steering warn ...

Vane Pump

...

Other materials about Toyota 4Runner:

Installation
INSTALLATION PROCEDURE 1. INSTALL STABILIZER CONTROL WITH ACCUMULATOR HOUSING ASSEMBLY (a) Install the stabilizer control with accumulator housing with the 3 bolts. Torque: 29 N·m {296 kgf·cm, 21 ft·lbf} (b) Connect the connector, and then attach the ...

Turn signal lever
The turn signal lever can be used to show the following intentions of the driver: 1. Right turn 2. Left turn 3. Lane change to the right (push and hold the lever partway) The right hand signals will flash until you release the lever. 4. Lane change to ...