Air Conditioning System (For Manual Air Conditioning System) Terminals Of Ecu

Vehicle Interior. Corolla. Zre142 Aze141
Heating Air Conditioning. Corolla. Zre142 Aze141

  1. A/C AMPLIFIER (for TMC Made and except TMC Made 2ZR-FE)

  1. A/C AMPLIFIER (Except TMC Made 2AZ-FE)

Air Conditioning System (For Manual Air Conditioning System) -- Terminals Of Ecu



A/C AMPLIFIER (for TMC Made and except TMC Made 2ZR-FE)

Corolla. Zre142 Aze141.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Manual Air Conditioning System) Terminals Of Ecu

HINT:
Check from the rear of the connector while it is connected to the A/C amplifier.

Terminal No. (Symbols)
Wiring Color
Description
Condition
Specified Condition
E111-4 (FLOQ) - E111-23 (SG-3)
R - P*1
R - W*2
A/C flow sensor signal
Engine running
A/C switch: ON
3.76 to 4.7 V
E111-4 (FLOQ) - E111-23 (SG-3)
R - P*1
R - W*2
A/C flow sensor signal
Engine running
A/C switch: OFF
0.3 to 3.76 V
E111-6 (S5-1) - E111-23 (SG-3)
B - P*1
B - W*2
Power supply for A/C flow sensor
Ignition switch: ON
4.5 to 5.5 V
E111-6 (S5-1) - E111-23 (SG-3)
B - P*1
B - W*2
Power supply for A/C flow sensor
Ignition switch: off
Below 1 V
E111-7 (S5-3) - E111-24 (GND)
B - W-B
Power supply for A/C pressure sensor
Ignition switch: off
Below 1 V
E111-7 (S5-3) - E111-24 (GND)
B - W-B
Power supply for A/C pressure sensor
Ignition switch: ON
4.5 to 5.5 V
E111-8 (CANH) - E111-9 (CANL)
V - W
CAN communication circuit
Ignition switch: ON
Pulse generation
E111-10 (SG-2) - Body ground
G - Body ground
Ground for A/C pressure sensor
Always
Below 1 V
E111-12 (PRE) - E111-24 (GND)
L - W-B
A/C pressure sensor signal
Engine running
A/C system operating
Refrigerant pressure: Abnormal pressure (more than 3140 kPa (32.0 kgf/cm2, 455 psi))
4.77 V or higher
E111-12 (PRE) - E111-24 (GND)
L - W-B
A/C pressure sensor signal
Engine running
A/C system operating
Refrigerant pressure: Abnormal pressure (less than 196 kPa (2.0 kgf/cm2, 28 psi))
Below 0.76 V
E111-12 (PRE) - E111-24 (GND)
L - W-B
A/C pressure sensor signal
Engine running
A/C system operating
Refrigerant pressure: Normal pressure (less than 3140 kPa (32.0 kgf/cm2, 455 psi) and more than 196 kPa (2.0 kgf/cm2, 28 psi))
0.76 to 4.77 V
E111-13 (SOL+) - E111-24 (GND)
LG - W-B*1
V - W-B*2
Compressor assembly with pulley operation signal
Engine running
A/C switch: ON
Blower switch: LO
Pulse generation
(See waveform 1)
E111-14 (IG+) - E111-24 (GND)
Y - W-B*1
R - W-B*2
Power source (IG)
Ignition switch: off
Below 1 V
E111-14 (IG+) - E111-24 (GND)
Y - W-B*1
R - W-B*2
Power source (IG)
Ignition switch: ON
11 to 14 V
E111-21 (SBLW) - E111-24 (GND)
BE - W-B*1
GR - W-B*2
Blower motor speed control signal
Ignition switch: ON
Blower switch: OFF
11 to 14 V
E111-21 (SBLW) - E111-24 (GND)
BE - W-B*1
GR - W-B*2
Blower motor speed control signal
Ignition switch: ON
Blower switch: LO
Below 1 V
E111-22 (TE) - E111-23 (SG-3)
W - P*1
LG - W*2
A/C evaporator temperature sensor signal
Ignition switch: ON
Evaporator temperature at 0°C (32°F)
1.7 to 2.0 V
E111-22 (TE) - E111-23 (SG-3)
W - P*1
LG - W*2
A/C evaporator temperature sensor signal
Ignition switch: ON
Evaporator temperature at 15°C (59°F)
1.0 to 1.3 V
E111-23 (SG-3) - Body ground
P - Body ground*1
W - Body ground*2
Ground for A/C evaporator temperature sensor, A/C flow sensor
Always
Below 1 V
E111-24 (GND) - Body ground
W-B - Body ground
Ground for main power supply
Always
Below 1 V
E111-27 (A/C) - E111-24 (GND)
L - W-B*1
Y - W-B*2
A/C switch signal
Ignition switch: ON
A/C switch: OFF
Below 1 V
E111-27 (A/C) - E111-24 (GND)
L - W-B*1
Y - W-B*2
A/C switch signal
Ignition switch: ON
A/C switch: ON
11 to 14 V
E111-28 (LED) - E111-24 (GND)
GR - W-B*1
BE - W-B*2
A/C switch indicator light signal
Ignition switch: ON
A/C switch: OFF
Blower switch: ON
11 to 14 V
E111-28 (LED) - E111-24 (GND)
GR - W-B*1
BE - W-B*2
A/C switch indicator light signal
Ignition switch: ON
A/C switch: ON
Blower switch: ON
Below 4 V
E63-1 (B) - E111-24 (GND)*3
W - W-B*1
BR - W-B*2
Power source (Battery)
Always
11 to 14 V
E63-9 (PTC1) - E111-24 (GND)*3
W - W-B*1
P - W-B*2
PTC heater operation signal
Ignition switch: ON
Temperature setting: MAX HOT
Ambient temperature: 10°C (50°F) or lower
Engine coolant temperature: 65°C (149°F) or lower
Light control switch: OFF
Blower switch: OFF
Below 1 V
E63-9 (PTC1) - E111-24 (GND)*3
W - W-B*1
P - W-B*2
PTC heater operation signal
Engine running (1250 rpm or higher)
Temperature setting: MAX HOT
Ambient temperature: 10°C (50°F) or lower
Engine coolant temperature: 65°C (149°F) or lower
Light control switch: OFF
Blower switch: LO
11 to 14 V
E63-10 (PTC2) - E111-24 (GND)*3
B - W-B
PTC heater operation signal
Ignition switch: ON
Temperature setting: MAX HOT
Ambient temperature: 10°C (50°F) or lower
Engine coolant temperature: 65°C (149°F) or lower
Light control switch: OFF
Blower switch: OFF
Below 1 V
E63-10 (PTC2) - E111-24 (GND)*3
B - W-B
PTC heater operation signal
Engine running (1250 rpm or higher)
Temperature setting: MAX HOT
Ambient temperature: 10°C (50°F) or lower
Engine coolant temperature: 65°C (149°F) or lower
Light control switch: OFF
Blower switch: LO
11 to 14 V
E63-14 (HEAT) - E111-24 (GND)*3
LG - W-B*1
GR - W-B*2
MAX HOT switch signal
Ignition switch: ON
MAX HOT switch: OFF
Below 1 V
E63-14 (HEAT) - E111-24 (GND)*3
LG - W-B*1
GR - W-B*2
MAX HOT switch signal
Ignition switch: ON
MAX HOT switch: ON
11 to 14 V
E63-23 (HLS) - E111-24 (GND)*3
B - W-B*1
V - W-B*2
Headlight dimmer signal (for PTC heater function)
Light control switch: OFF
11 to 14 V
E63-23 (HLS) - E111-24 (GND)*3
B - W-B*1
V - W-B*2
Headlight dimmer signal (for PTC heater function)
Light control switch: ON
Below 1 V
E63-24 (ALT) - E111-24 (GND)*3
L - W-B
Generator signal (for PTC heater function)
Engine is running
Pulse generation
  1. *1: for TMC Made
  2. *2: except TMC Made 2ZR-FE
  3. *3: w/ PTC Heater Assembly


    Corolla. Zre142 Aze141.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Manual Air Conditioning System) Terminals Of Ecu

  1. Waveform 1:

    Item
    		Content
    Terminal No. (Symbol)
    		E111-13 (SOL+) - E111-24 (GND)
    Tool Setting
    		5 V/DIV., 500 μs./DIV.
    Vehicle Condition
    		Engine running
    A/C switch: ON
    Blower switch: LO

A/C AMPLIFIER (Except TMC Made 2AZ-FE)

Corolla. Zre142 Aze141.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Manual Air Conditioning System) Terminals Of Ecu

HINT:
Check from the rear of the connector while it is connected to the A/C amplifier.

Terminal No.
(Symbol)
Wiring Color
Description
Condition
Specified Condition
E62-1 (S5-3) - E62-4 (SG-2)
B - G
Power supply for A/C pressure sensor
Ignition switch: ON
4.75 to 5.25 V
E62-1 (S5-3) - E62-4 (SG-2)
B - G
Power supply for A/C pressure sensor
Ignition switch: off
Below 1 V
E62-2 (CANH) - E62-3 (CANL)
V - W
CAN communication system
CAN communication circuit
Pulse generation
E62-4 (SG-2) - Body ground
G - Body ground
Ground for A/C pressure sensor
Always
Below 1 V
E62-6 (PRE) - E62-4 (SG-2)
L - G
A/C pressure sensor signal
Engine running
A/C system operating
Refrigerant pressure: Abnormal pressure (more than 3140 kPa (32.0 kgf/cm2, 455 psi))
4.77 V or higher
E62-6 (PRE) - E62-4 (SG-2)
L - G
A/C pressure sensor signal
Engine running
A/C system operating
Refrigerant pressure: Abnormal pressure (less than 196 kPa (2.0 kgf/cm2, 28 psi))
Below 0.76 V
E62-6 (PRE) - E62-4 (SG-2)
L - G
A/C pressure sensor signal
Engine running
A/C system operating
Refrigerant pressure: Normal pressure (less than 3140 kPa (32.0 kgf/cm2, 455 psi) and more than 196 kPa (2.0 kgf/cm2, 28 psi))
0.76 to 4.77 V
E62-7 (SOL+) - E62-12 (GND)
V - W-B
Compressor assembly with pulley operation signal
Engine running
A/C switch: ON
Blower switch: LO
Pulse generation
(See waveform 1)
E62-8 (IG+) - E62-12 (GND)
R - W-B
Power source (IG)
Ignition switch: off
Below 1 V
E62-8 (IG+) - E62-12 (GND)
R - W-B
Power source (IG)
Ignition switch: ON
11 to 14 V
E62-9 (SBLW) - E62-12 (GND)
GR - W-B
Blower motor speed control signal
Ignition switch: ON
Blower switch: OFF
11 to 14 V
E62-9 (SBLW) - E62-12 (GND)
GR - W-B
Blower motor speed control signal
Ignition switch: ON
Blower switch: LO
Below 1 V
E62-10 (TE) - E62-11 (SG-3)
LG - SB
A/C evaporator temperature sensor signal
Ignition switch: ON
Evaporator temperature at 10°C (50°F)
1.7 to 2.0 V
E62-10 (TE) - E62-11 (SG-3)
LG - SB
A/C evaporator temperature sensor signal
Ignition switch: ON
Evaporator temperature at 15°C (59°F)
1.0 to 1.3 V
E62-11 (SG-3) - Body ground
SB - Body ground
Ground for A/C evaporator temperature sensor
Always
Below 1 V
E62-12 (GND) - Body ground
W-B - Body ground
Ground for main power supply
Always
Below 1 V
E62-15 (A/C) - E62-12 (GND)
Y - W-B
A/C switch signal
Ignition switch: ON
A/C switch: OFF
Below 1 V
E62-15 (A/C) - E62-12 (GND)
Y - W-B
A/C switch signal
Ignition switch: ON
A/C switch: ON
11 to 14 V
E62-16 (LED) - E62-12 (GND)
BE - W-B
A/C switch indicator light signal
Ignition switch: ON
A/C switch: OFF
Blower switch: ON
11 to 14 V
E62-16 (LED) - E62-12 (GND)
BE - W-B
A/C switch indicator light signal
Ignition switch: ON
A/C switch: ON
Blower switch: ON
Below 4 V


    Corolla. Zre142 Aze141.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Manual Air Conditioning System) Terminals Of Ecu

  1. Waveform 1:

    Item
    		Content
    Terminal No. (Symbol)
    		E62-7 (SOL+) - E62-12 (GND)
    Tool Setting
    		5 V/DIV., 500 μs./DIV.
    Vehicle Condition
    		Engine running
    A/C switch: ON
    Blower switch: LO