Tacoma

Toyota Tacoma 2015-2018 CAN Workshop Manual

FUNCTION BEHAVIOR DURING CAN FAILURE
1. CONTROL
MASTER
2. SYSTEM
RELATED
VEHICLE BEHAVIOR DTC
(DRIVER DETECTABLE)
DIAGNOSTIC
TROUBLE
CODE
Engine Switch Lettering
Illumination Control
(Operates the engine
switch lettering
illumination in
conjunction with the
dome light illumination,
etc.)
1. Certification
ECU (smart
key ECU
assembly)
2. Combination
meter
assembly,
Certification
ECU (smart
key ECU
assembly),
Main body ECU
(multiplex
network body
ECU)
If the engine
switch letters
are
illuminated
due to the
dome light,
the
illumination
turns off.
When the DC
cut fuse is
removed and
the engine
switch letters
are
illuminated
due to the
panel
illumination,
the
illumination
turns off.
The previous
value is
maintained.
If the engine
switch letters
are not
illuminated,
they do not
illuminate.
If the engine
switch letters
are illuminated
due to the
panel
illumination, the
illumination
does not turn
off.
If the engine
switch letters
are illuminated
due to the
dome light, the
illumination
turns off.
When the DC
cut fuse is
removed and
the engine
switch letters
are illuminated
due to the
panel
illumination, the
illumination
turns off.
U0142
Security Indicator Display
Function
(Displays the immobiliser
security condition.)
1. Certification
ECU (smart
key ECU
assembly)
2. Certification
ECU (smart
key ECU
assembly),
Main body ECU
(multiplex
network body
ECU)
Nothing
Security condition cannot
display normally
(illuminates during
security warning
preparation/security
warning).
U0142
cardiagn.com

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