DESCRIPTION
When the theft deterrent system is in the armed state, the engine immobiliser system is automatically set and the security indicator light flashes continuously.
When the theft deterrent system is in the arming preparation state or alarm sounding state, the main body ECU (multiplex network body ECU) causes the security indicator light to be illuminated.
WIRING DIAGRAM
PROCEDURE
1. |
PERFORM ACTIVE TEST USING TECHSTREAM (SECURITY INDICATOR) |
(a) Operate the Techstream according to the steps on the display and select Active
Test (See page ).
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
---|---|---|---|
Security Indicator |
Security indicator light |
ON/OFF |
The test is possible when the following conditions are met:
|
OK:
Security indicator light can be turned on and off using the Techstream.
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. |
INSPECT SECURITY INDICATOR LIGHT (TELLTALE LIGHT ASSEMBLY) |
(a) Remove the security indicator light (telltale light assembly) (See page
).
(b) Inspect the security indicator light (telltale light assembly) (See page
).
NG | ![]() |
REPLACE SECURITY INDICATOR LIGHT (TELLTALE LIGHT ASSEMBLY) |
|
3. |
CHECK HARNESS AND CONNECTOR (TELLTALE LIGHT - MAIN BODY ECU AND BODY GROUND) |
(a) Disconnect the F32 security indicator light (telltale light assembly) connector.
(b) Remove the main body ECU (multiplex network body ECU) from the driver side
junction block assembly (See page ).
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F32-6 (LP) - A-23 (IND) |
Always |
Below 1 Ω |
F32-1 (GND) - Body ground |
Always |
Below 1 Ω |
F32-6 (LP) or A-23 (IND) - Body ground |
Always |
10 kΩ or higher |
OK | ![]() |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Check Mode Procedure
CHECK MODE PROCEDURE
1. DESCRIPTION
(a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions
that normal mode cannot detect. Check mode can also detect all the malfunctions
that normal mode can detect. In check mode, DTCs are s ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
NOTICE:
Make sure to release the vacuum from the brake booster before removing the master
cylinder from the brake booster.
PROCEDURE
1. DRAIN BRAKE FLUID
NOTICE:
Wash off brake fluid immediately if it comes in contact w ...