Air Conditioning System (For Hatchback) Terminals Of Ecu

Vehicle Interior. Yaris. Ncp93, 131
Heating Air Conditioning. Yaris. Ncp93, 131

  1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (w/ Cooler)

  1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (w/o Cooler)

  1. CHECK COMBINATION METER ASSEMBLY

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



CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (w/ Cooler)

Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning System (For Hatchback) Terminals Of Ecu

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
D130-1 (IG+) - D130-23 (GND)
V - W-B
Ignition power supply
Ignition switch: ON
11 to 14 V
D130-2 (A/C) - D130-23 (GND)
L - W-B
A/C switch signal
Ignition switch: ON
Below 1 V → 11 to 14 V
Defroster: OFF
A/C switch: OFF → ON
Defroster mode detection switch signal
Ignition switch: ON
Below 1 V → 11 to 14 V
A/C switch: OFF
Defroster: OFF → ON
D130-3 (HEAT) - Body ground*1
LG - Body ground
MAX HOT switch detection signal
Ignition switch: ON
11 to 14 V
No. 3 heater control knob: MAX HOT
D130-4 (TE) - D130-15 (SG- 1)
GR - B
Evaporator temperature sensor signal
Ignition switch: ON
1.0 to 1.3 V
Temperature near evaporator: 15°C (59°F)
D130-5 (SG-2) - Body ground
L - Body ground
Ground for A/ C pressure sensor
Always
Below 1 Ω
D130-7 (PRE) - D130-23 (GND)
GR - W-B
A/C pressure sensor signal
Refrigerant pressure: Normal
0.63 to 4.73 V
Refrigerant pressure: Abnormal
(less than 0.176 MPaG [1.8 kgf/cm2] or more than 3.03 MPaG [31 kgf/cm2])
Below 0.63 V or 4.73 V or more
D130-8 (TX+) - D130-23 (GND)
V - W-B
CAN communication signal
Ignition switch: ON
Pulse generation
(See waveform 1)
D130-9 (TX-) - D130-23 (GND)
W - W-B
CAN communication signal
Ignition switch: ON
Pulse generation
(See waveform 2)
D130-11 (SOL+) - D130-23 (GND)
P - W-B
A/C compressor operation signal
Engine idling
Pulse generation
(See waveform 3)
Blower switch: 1
A/C switch: ON
D130-13 (PTC1) - Body ground*1
SB - Body ground
No. 2 integration relay operation signal
Engine idling
11 to 14 V → Below 1 V
No. 3 heater control knob: MAX HOT
Engine coolant temperature: Below 75°C (167°F)
Ambient temperature: Below 10°C (50°F)
Blower switch: 0 → 1
Waiting time: 10 seconds
D130-14 (HR) - Body ground
R - Body ground
Heater blower motor relay operation signal
Ignition switch: ON
11 to 14 V → Below 1 V
Blower switch: 0 → 1
D130-15 (SG-1) - Body ground
B - Body ground
Ground for evaporator temperature sensor
Always
Below 1 Ω
D130-16 (LED) - Body ground
P - Body ground
A/C switch indicator signal
Engine idling
11 to 14 V → Below 4 V
A/C switch: ON
Blower switch: 0 → 1
D130-17 (SBLW) - Body ground
GR - Body ground
Blower motor ON signal
Ignition switch: ON
11 to 14 V → Below 1 V
Blower switch: 0 → 1
D130-19 (PTC2) - Body ground*1
P - Body ground
No. 2 integration relay operation signal
Engine idling
11 to 14 V → Below 1 V
No. 3 heater control knob: MAX HOT
Engine coolant temperature: Below 70°C (158°F)
Ambient temperature: Below 10°C (50°F)
Blower switch: 0 → 1
Waiting time: 20 seconds
D130-20 (PTC3) - Body ground*1
V - Body ground
No. 2 integration relay operation signal
Engine idling
11 to 14 V → Below 1 V
No. 3 heater control knob: MAX HOT
Engine coolant temperature: Below 65°C (149°F)
Ambient temperature: Below 10°C (50°F)
Blower switch: 0 → 1
Waiting time: 30 seconds
D130-21 (HLS) - Body ground*1
R - Body ground*2
G - Body ground*3
Headlight signal
Engine idling
11 to 14 V → Below 1 V
Head light switch: OFF → ON
D130-23 (GND) - Body ground
W-B - Body ground
Ground for main power supply
Always
Below 1 Ω
D130-24 (S5-3) - D130-23 (GND)
Y - W-B
Power supply for pressure sensor
Ignition switch: ON
4.75 to 5.25 V
  1. *1: w/ PTC Heater
  2. *2: w/o Daytime Running Light System
  3. *3: w/ Daytime Running Light System
  4. If the result is not as specified, there may be a malfunction in the wire harness.


    Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning System (For Hatchback) Terminals Of Ecu

  1. Waveform 1 (Reference) : Using an oscilloscope

    CAN Communication Signal
    Terminal Name
    		D130-8 (TX+) - D130-23 (GND)
    Tester Range
    		1 V / DIV., 10 μsec. / DIV.
    Condition
    		Ignition switch ON
    HINT:
    The waveform varies depending on the CAN communication signal.


    2. Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning System (For Hatchback) Terminals Of Ecu

  2. Waveform 2 (Reference) : Using an oscilloscope

    CAN Communication Signal
    Terminal Name
    		D130-9 (TX-) - D130-23 (GND)
    Tester Range
    		1 V / DIV., 10 μsec. / DIV.
    Condition
    		Ignition switch ON
    HINT:
    The waveform varies depending on the CAN communication signal.


    3. Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning System (For Hatchback) Terminals Of Ecu

  3. Waveform 3: Using an oscilloscope

    Compressor and Pulley Operation Signal
    Terminal Name
    		D130-11 (SOL+) - D130-23 (GND)
    Tester Range
    		5 V / DIV., 500 μsec. / DIV.
    Condition
    		Engine idling
    Blower switch 1
    A/C switch ON

CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (w/o Cooler)

Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning System (For Hatchback) Terminals Of Ecu

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
D130-1 (IG+) - D130-23 (GND)*1
V - W-B
Ignition power supply
Ignition switch: ON
11 to 14 V
D130-3 (HEAT) - Body ground*1
LG - Body ground
MAX HOT switch detection signal
Ignition switch: ON
11 to 14 V
No. 3 heater control knob: MAX HOT
D130-8 (TX+) - D130-23 (GND)*1
V - W-B
CAN communication signal
Ignition switch: ON
Pulse generation
(See waveform 1)
D130-9 (TX-) - D130-23 (GND)*1
W - W-B
CAN communication signal
Ignition switch: ON
Pulse generation
(See waveform 2)
D130-13 (PTC1) - Body ground*1
SB - Body ground
No. 2 integration relay operation signal
Engine idling
11 to 14 V → Below 1 V
No. 3 heater control knob: MAX HOT
Engine coolant temperature: Below 75°C (167°F)
Ambient temperature: Below 10°C (50°F)
Blower switch: 0 → 1
Waiting time: 10 seconds
D130-14 (HR) - Body ground
R - Body ground
Heater blower motor relay operation signal
Ignition switch: ON
11 to 14 V → Below 1 V
Blower switch: 0 → 1
D130-17 (SBLW) - Body ground
GR - Body ground
Blower motor ON signal
Ignition switch: ON
11 to 14 V → Below 1 V
Blower switch: 0 → 1
D130-19 (PTC2) - Body ground*1
P - Body ground
No. 2 integration relay operation signal
Engine idling
11 to 14 V → Below 1 V
No. 3 heater control knob: MAX HOT
Engine coolant temperature: Below 70°C (158°F)
Ambient temperature: Below 10°C (50°F)
Blower switch: 0 → 1
Waiting time: 20 seconds
D130-20 (PTC3) - Body ground*1
V - Body ground
No. 2 integration relay operation signal
Engine idling
11 to 14 V → Below 1 V
No. 3 heater control knob: MAX HOT
Engine coolant temperature: Below 65°C (149°F)
Ambient temperature: Below 10°C (50°F)
Blower switch: 0 → 1
Waiting time: 30 seconds
D130-21 (HLS) - Body ground*1
R - Body ground*2
G - Body ground*3
Headlight signal
Engine idling
11 to 14 V → Below 1 V
Head light switch: OFF → ON
D130-23 (GND) - Body ground*1
W-B - Body ground
Ground for main power supply
Always
Below 1 Ω
  1. *1: w/ PTC Heater
  2. *2: w/o Daytime Running Light System
  3. *3: w/ Daytime Running Light System
  4. If the result is not as specified, there may be a malfunction in the wire harness.


    Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning System (For Hatchback) Terminals Of Ecu

  1. Waveform 1 (Reference) : Using an oscilloscope

    CAN Communication Signal
    Terminal Name
    		D130-8 (TX+) - D130-23 (GND)
    Tester Range
    		1 V / DIV., 10 μsec. / DIV.
    Condition
    		Ignition switch ON
    HINT:
    The waveform varies depending on the CAN communication signal.


    2. Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning System (For Hatchback) Terminals Of Ecu

  2. Waveform 2 (Reference) : Using an oscilloscope

    CAN Communication Signal
    Terminal Name
    		D130-9 (TX-) - D130-23 (GND)
    Tester Range
    		1 V / DIV., 10 μsec. / DIV.
    Condition
    		Ignition switch ON
    HINT:
    The waveform varies depending on the CAN communication signal.

CHECK COMBINATION METER ASSEMBLY

Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning System (For Hatchback) Terminals Of Ecu

HINT:
Check from the rear of the connector while it is connected to the combination meter assembly.

Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
D100-34 (TX1-) - Body ground
B - Body ground
Ground for ambient temperature sensor
Always
Below 1 Ω
D100-35 (TX1+) - D100-34 (TX1-)
W - B
Ambient temperature sensor signal
Ignition switch ON at 25°C (77°F)
1.35 to 1.75 V
D100-39 (IG+) - Body ground
P - Body ground
Ignition power supply
Ignition switch ON
11 to 14 V
D100-40 (B) - Body ground
L - Body ground
Battery power supply
Always
11 to 14 V
  1. If the result is not as specified, there may be a malfunction in the wire harness.