DESCRIPTION
The main body ECU receives headlight dimmer switch information signals, and illuminates the front fog light.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses and bulbs for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. |
PERFORM ACTIVE TEST USING TECHSTREAM (FRONT FOG LIGHT RELAY) |
(a) Using the Techstream, perform the Active Test (See page
).
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
---|---|---|---|
Front Fog Light Relay |
Front fog light relay |
ON/OFF |
- |
OK:
Front fog light relay operates (front fog lights come on).
OK | ![]() |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
|
2. |
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
OK | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (DRIVER SIDE JUNCTION BLOCK ASSEMBLY - FOG LIGHT ASSEMBLY) |
NG | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple
suspected areas are listed, the potential causes of the symptoms are listed in order
of probability in the "Suspected Area" column of ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference
values. Do not depend solely on these reference values when deciding whether a part
is faulty or not.
HINT:
Using the T ...