Tacoma

Toyota Tacoma 2015-2018 Air Conditioning Workshop Manual

TERMINAL
NO.
(SYMBOL)
WIRING
COLOR
TERMINAL DESCRIPTION CONDITION SPECIFIED
CONDITION
A14-32
(SG-2) -
Body ground
GR -
Body
ground
Ground for evaporator
temperature sensor
Always Below 1 Ω
A14-33
(SG-1) -
Body ground
LG -
Body
ground
Ground for air conditioner
pressure sensor, ambient
temperature sensor, A/C
lock sensor
Always Below 1 Ω
A14-35
(ACID) -
A14-12
(GND)
B - W-B A/C switch LED signal
Ignition switch: ON
Blower switch: on
A/C switch: off
11 to 14 V
Ignition switch: ON
Blower switch: on
A/C switch: on
Below 3 V
A14-37
(AC1) -
A14-12
(GND)
BE - W-B
Compressor operation
signal
Ignition switch ON
A/C switch: off
11 to 14 V
Ignition switch ON
A/C switch: on
Below 1 V
A14-40
(FRS) -
A14-12
(GND)
V - W-B
Recirculation/Fresh switch
signal
Ignition switch: ON
Recirculation/Fresh switch
switch: RECIRCULATION to
FRESH
11 to 14 V
Servo motor
operating)
*1: w/ PTC Heater
(a) Waveform 1:
ITEM CONTENT
Terminal No. A14-4 (LOCK) - A14-12 (GND)
Tool Setting 200 mV/DIV., 10 ms./DIV.
Vehicle Condition
Engine running
Blower switch: LO
A/C switch: on
2. ECM (2TR-FE)
3. ECM (2GR-FKS)
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