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
Display Automatic
Dimming
(Display dimming
control.)
1. Main body
ECU (Multiplex
network body
ECU)
2. Combination
meter
assembly
Automatic dimming
control for displays does
not operate when
taillights are turned on.
Nothing U0155
Illumination Control
1. Main body
ECU (Multiplex
network body
ECU)
2. Certification
ECU (smart
key ECU
assembly)
Interior lights turn off.
When communication with
certification ECU (smart
key ECU assembly) is
interrupted:
Interior lights
do not turn off
right after
getting out of
the vehicle.
U0327
Entry Function/Wireless
Control
1. Certification
ECU (Smart
key ECU
assembly)
2. Main body
ECU (multiplex
network body
ECU)
Entry lock/unlock control
is not possible.
Nothing U0327
Daytime Running Light
Control
1. Main body
ECU (Multiplex
network body
ECU)
2. ECM
Daytime running light
control does not operate.
Nothing U0100
Tire Pressure Monitoring
System
(Monitors tire pressure,
vehicle speed, etc., and
illuminates indicator
lights or displays a
message on the multi-
information display.)
1. Door control
and tire
pressure
monitoring
system
receiver
assembly
2. Combination
meter
assembly
Nothing
Tire pressure warning light
blinks and then
illuminates.
U0155
Entry and Start Function
Entry
lock/unlock
1. Main body
ECU (multiplex
network body
ECU),
An entry unlock retry is
performed.
When transmission is
abnormal:
The entry lock/
U0142
U0155
cardiagn.com

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