DESCRIPTION
The main body ECU receives headlight dimmer switch information signals, and illuminates the clearance lights, taillights and license plate lights.
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 (TAILLIGHT RELAY) |
(a) Using the Techstream, perform the Active Test (See page
).
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
---|---|---|---|
Taillight Relay |
Taillight relay |
ON/OFF |
- |
OK:
Taillight relay operates (taillights illuminate).
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. |
CHECK HARNESS AND CONNECTOR (BATTERY - MAIN BODY ECU) |
(a) Remove the main body ECU (See page
|
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A-14 (TRLY) - Body ground |
Always |
11 to 14 V |
*a |
Front view of wire harness connector (to Main Body ECU) |
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Installation
INSTALLATION
PROCEDURE
1. INSTALL AUTOMATIC LIGHT CONTROL SENSOR
(a) Attach the 2 claws to install the sensor.
(b) Connect the connector.
2. INSTALL NO. 3 HEATER TO REGISTER DUCT
3. INSTALL NO. 1 SI ...
Microphone Circuit between Microphone and Radio Receiver
DESCRIPTION
The radio and display receiver assembly and map light assembly (telephone
microphone assembly) are connected to each other using the microphone connection
detection signal lines.
Using this circuit, the radio and display receive ...