DESCRIPTION
When the theft deterrent system is switched from the armed state to the alarm sounding state, the main body ECU (driver side junction block assembly) transmits a signal to cause the horn to sound at intervals of 0.4 seconds.
WIRING DIAGRAM
PROCEDURE
1. |
INSPECT HORNS |
(a) Press the horn switch and check if the horns sound.
Result |
Proceed to |
---|---|
Horns sound |
A |
Horns do not sound |
B |
B | ![]() |
GO TO HORN SYSTEM |
|
2. |
PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Select the item below in the Active Test and then check that the horns operate.
Main Body
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
---|---|---|---|
Vehicle Horn |
Vehicle horns |
ON / OFF |
- |
OK:
The vehicle horns sound and stop correctly when operated through the Techstream.
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
Electrical Key Oscillator(for Rear Side)
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE REAR BUMPER PLATE LH
2. REMOVE REAR BUMPER PLATE RH
3. REMOVE REAR BUMPER ASSEMBLY
4. REMOVE ELECTRICAL KEY ANTENNA
(a) Disconnect the connector.
...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedures to troubleshoot the tire pressure warning
system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE BREATHER PLUG HOSE
(a) Using a screwdriver, remove the No. 2 breather plug (ATM) from the
transaxle case sub-assembly.
(b) Using a screwdriver, remove ...