Tacoma

Toyota Tacoma 2015-2018 Air Conditioning Workshop Manual

TERMINAL
NO.
(SYMBOL)
WIRING
COLOR
TERMINAL DESCRIPTION CONDITION SPECIFIED
CONDITION
lower
Engine running
Blower switch on
Temperature settings: MAX HOT
Engine coolant temperature
65°C or lower
Ambient temperature 10°C or
lower
Below 1 V
A14-18
(MGC) -
A14-12
(GND)
G - W-B
Magnetic clutch operation
signal
Engine running
Blower switch: LO
A/C switch: off
11 to 14 V
Engine running
Blower switch: LO
A/C switch: on
Below 1 V
A14-20
(REC) -
A14-12
(GND)
R - W-B
Recirculation/Fresh switch
signal
Ignition switch: ON
Recirculation/Fresh switch
switch: FRESH to
RECIRCULATION
11 to 14 V
(Servo motor
operating)
A14-21 (B) -
A14-12
(GND)
LG - W-B Power source (Back-up) Always 11 to 14 V
A14-22
(DEF) -
A14-12
(GND)
R - W-B Mode switch signal
Ignition switch: ON
Mode switch: except DEF
1 to 14 V
Ignition switch: ON
Mode switch: DEF
Below 1 V
A14-26
(MR/F) -
A14-12
(GND)
SB - W-B REC switch operation signal
Ignition switch: ON
REC switch: off
4 to 5 V
Ignition switch: ON
REC switch: on
Below 1 V
A14-27
(A/C) -
A14-12
(GND)
GR - W-B A/C switch operation signal
Ignition switch: ON
A/C switch: off
4 to 5 V
Ignition switch: ON
A/C switch: on
Below 1 V
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