Toyota 4Runner: Integration Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. REMOVE NO. 1 RELAY BLOCK COVER
(a) Remove the No. 1 relay block cover.
2. INSPECT NO. 1 INTEGRATION RELAY
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(a) Using a screwdriver, detach the 2 claws and disconnect the No. 1 integration relay from the engine room junction block. HINT: Tape the screwdriver tip before use. Text in Illustration
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(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the No. 1 integration relay. Text in Illustration
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(c) Attach the 2 claws to install the No. 1 integration relay to the engine room junction block.
3. INSTALL NO. 1 RELAY BLOCK COVER
(a) Install the No. 1 relay block cover.
Horn System
Parts Location
PARTS LOCATION
ILLUSTRATION
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple
suspected ...
Lighting (ext)
...
Other materials about Toyota 4Runner:
ECU Power Source Circuit
DESCRIPTION
This is the power source for the tire pressure warning ECU.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When replacing the tire pressure warning ECU, read the IDs stored in
the old ECU using the Techstream and write them down ...
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSION
HINT:
The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ign ...
0.007