Toyota 4Runner: 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) |
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| OK | .gif) |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
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:
Inner Rear View Mirror
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT INNER REAR VIEW MIRROR ASSEMBLY (w/ EC Mirror)
(a) Check operation of the electrochromic mirror.
Text in Illustration
*1
Black-colored Tape
...
System Diagram
SYSTEM DIAGRAM
Communication Table
Sender
Receiver
Signal
Line
Main body ECU (Multiplex network body ECU)
Combination meter assembly
Front door courtesy light switch LH signa ...
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