Tacoma

Toyota Tacoma 2015-2018 Air Conditioning Workshop Manual

Last Modified: 11-13-2015 6.6 U Doc ID: RM0000016A700KX
Model Year Start: 2016 Model: Tacoma Prod Date Range: [08/2015 - ]
Title: AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air Conditioning System): TERMINALS OF
ECU; 2016 MY Tacoma [08/2015 - ]
TERMINALS OF ECU
1. AIR CONDITIONING AMPLIFIER ASSEMBLY
HINT:
Check from the rear of the connector while it is connected to the air conditioning amplifier assembly.
TERMINAL
NO.
(SYMBOL)
WIRING
COLOR
TERMINAL DESCRIPTION CONDITION SPECIFIED
CONDITION
A14-1 (IG+)
- A14-12
(GND)
P - W-B Power source (IG)
Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V
A14-2
(BLRH) -
A14-12
(GND)
SB - W-B Blower switch signal
Ignition switch: ON
Blower switch: off
Below 1 V
Ignition switch: ON
Blower switch: on
11 to 14 V
A14-3 (MC) -
A14-12
(GND)
BE - W-B Air mix select switch signal
Ignition switch: ON
Air mix switch: except MAX A/C
1 to 14 V
Ignition switch: ON
Air mix switch: MAX A/C
Below 1 V
A14-4
(LOCK) -
A14-12
(GND)
G - W-B A/C lock sensor signal
Engine running
Blower switch: LO
A/C switch: on
Pulse
generation
(See
waveform 1)
A14-5 (PRE)
- A14-12
(GND)
V - W-B
Air conditioner pressure
sensor signal
Engine running
Air conditioning system
operating
Refrigerant pressure: Abnormal
4.71 V or
higher
cardiagn.com

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