Toyota Tacoma (2015-2018) Service Manual: Theft Deterrent System is not Unset when Engine is Running
DESCRIPTION
The theft deterrent system is unset when the IG signal and engine speed signal are input to the main body ECU (multiplex network body ECU) for 2 seconds or more continuously.
The engine speed signal is sent from the ECM to the main body ECU (multiplex network body ECU). For this reason, if there is an abnormality in an ECU or wire harness, the system may not function correctly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Before replacing the main body ECU (multiplex network body ECU), refer
to Registration (See page
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).*1
- *1: w/ Smart Key System
- Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
|
1. |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
(a) Replace the main body ECU (multiplex network body ECU) with a new one (See
page ).
| NEXT | .gif) |
END |
Theft Deterrent System cannot be Set or Unset
DESCRIPTION
When the ignition switch is turned off and all doors and the engine hood are
closed, the theft deterrent system is set when doors are locked by wireless operation*1,
key linked operat ...
Theft Deterrent System Unexpectedly Sets Itself
DESCRIPTION
A situation in which the theft deterrent system unexpectedly sets itself can
be caused when the main body ECU (multiplex network body ECU) cannot detect whether
a door is open or clos ...
Other materials:
Terminals Of Ecu
TERMINALS OF ECU
1. NAVIGATION RECEIVER ASSEMBLY
Terminal No. (Symbols)
Wiring Color
Terminal Description
Condition
Specified Condition
N19-3 (ACC2) - N24-7 (GND1)*3
Y - W-B
Power source (ACC)
...
Extension Module Malfunction (B1552,B158A,B15BA)
DESCRIPTION
These DTCs are stored when a malfunction occurs in the extension module.
DTC Code
DTC Detection Condition
Trouble Area
B1552
Internal malfunction of the extension module
Stereo component tuner assembly
...
Air Outlet Damper Control Servo Motor Circuit (B1443/43)
DESCRIPTION
This No. 1 air conditioning radiator damper servo sub-assembly (for mode switching)
is controlled by the air conditioning amplifier assembly and moves the mode damper
to the desired position.
DTC No.
DTC Detection Condition
Trouble Area
...
