AIR CONDITIONING SYSTEM > TERMINALS OF ECU

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AIR CONDITIONING AMPLIFIER

I036314E02

HINT:
Check from the rear of the connector with it connected to the air conditioning amplifier assembly.


Terminal No.
(Symbols)
Wiring color
Terminal Description
Condition
Specification
A11-1 (IG+) - A11-6 (GND)
Y - W-B
Ignition switch signal
Ignition switch: LOCK or ACC
Below 1 V
A11-1 (IG+) - A11-6 (GND)
Y - W-B
Ignition switch signal
Ignition switch: ON
10 to 14 V
A11-2 (B) - A11-6 (GND)
SB - W-B
Back-up power source
Always
10 to 14 V
A11-3 (MPX+) - A11-6 (GND)
BR - W-B
Terminal for BEAN
Engine idling after engine warmed up
Pulse generation
A11-4 (MPX-) - A11-6 (GND)
GR - W-B
Terminal for BEAN
Engine idling after engine warmed up
Pulse generation
A11-5 (WIP) - A11-6 (GND)
W - W-B
Wiper operation signal
Ignition switch: ON
Wiper stop position
Below 1 V
A11-5 (WIP) - A11-6 (GND)
W - W-B
Wiper operation signal
Ignition switch: ON
Other than wiper stop position
(Operating)
10 to 14 V
A11-6 (GND) - Body ground
W-B - Body ground
Ground for main power supply
Always
Below 1 V
A11-8 (FDEF) - A11-6 (GND)
B - W-B
Front deicer switch signal
Ignition switch: ON
Front deicer switch: OFF
10 to 14 V
A11-8 (FDEF) - A11-6 (GND)
B - W-B
Front deicer switch signal
Ignition switch: ON
Front deicer switch: ON
Below 1 V
A11-9 (BLW) - A11-6 (GND)
L - W-B
Blower switch signal
Ignition switch: ON
Blower switch: ON
Pulse generation
(See waveform 1)
A11-10 (TSD) - A11-6 (GND)
R - W-B*1
Y - W-B*2
Light sensor (Driver side)
Ignition switch: ON
Light sensor covered with a cloth
Below 0.8 V
A11-10 (TSD) - A11-6 (GND)
R - W-B*1
Y - W-B*2
Light sensor (Driver side)
Ignition switch: ON
Light sensor exposed to electric light
0.8 to 4.3 V
A11-11 (TSP) - A11-6 (GND)
Y - W-B*1
R - W-B*2
Light sensor (Passenger side)
Ignition switch: ON
Light sensor covered with a cloth
Below 0.8 V
A11-11 (TSP) - A11-6 (GND)
Y - W-B*1
R - W-B*2
Light sensor (Passenger side)
Ignition switch: ON
Light sensor exposed to electric light
0.8 to 4.3 V
A11-18 (HR) - A11-6 (GND)
W - W-B
Blower switch signal
Ignition switch: ON
Blower switch: OFF
10 to 14 V
A11-18 (HR) - A11-6 (GND)
W - W-B
Blower switch signal
Ignition switch: ON
Blower switch: ON
Below 1 V
A11-18 (HR) - A11-6 (GND)
W - W-B
Blower switch signal
Ignition switch: OFF
Blower switch: OFF
Below 1 V
A11-19 (DFG) - A11-6 (GND)
G - W-B
Rear defogger switch signal
Ignition switch: ON
Rear defogger switch: OFF
10 to 14 V
A11-19 (DFG) - A11-6 (GND)
G - W-B
Rear defogger switch signal
Rear defogger switch: ON
Below 1 V
A11-21 (TR) - A11-6 (GND)
O - V
Room temperature sensor signal
Ignition switch: ON
Cabin temperature: 25°C (77°F)
1.8 to 2.2 V
A11-21 (TR) - A11-6 (GND)
O - V
Room temperature sensor signal
Ignition switch: ON
Cabin temperature: 40°C (105°F)
1.3 to 1.7 V
A11-22 (RH) - A11-6 (GND)
SB - W-B
Power supply for humidity sensor
Ignition switch: ON
4.5 to 5.5 V
A11-24 (SSR+) - A11-6 (GND)
P - W-B
Humidity sensor signal
Ignition switch: ON
Cabin humidity: 40%
2.0 V
A11-24 (SSR+) - A11-6 (GND)
P - W-B
Humidity sensor signal
Ignition switch: ON
Cabin humidity: 60%
2.5 V
A11-26 (SG-5) - Body ground
V - Body ground
Ground for room temperature sensor
Always
Below 1 V
A10-3 (AIR) - A7-6 (GND)
R - W-B
Recirculation/Fresh switch signal
Ignition switch: ON
Recirculation/Fresh switch: FRESH
Below 1 V
A10-3 (AIR) - A11-6 (GND)
R - W-B
Recirculation/Fresh switch signal
Ignition switch: ON
Recirculation/Fresh switch: RECIRCULATION
10 to 14 V
A10-4 (AIF) - A11-6 (GND)
G - W-B
Recirculation/Fresh switch signal
Ignition switch: ON
Recirculation/Fresh switch: RECIRCULATION
Below 1 V
A10-4 (AIF) - A11-6 (GND)
G - W-B
Recirculation/Fresh switch signal
Ignition switch: ON
Recirculation/Fresh switch: FRESH
10 to 14 V
A10-5 (AOF) - A11-6 (GND)
W - W-B
Mode switch signal
Ignition switch: ON
Mode switch: DEF
Below 1 V
A10-5 (AOF) - A11-6 (GND)
W - W-B
Mode switch signal
Ignition switch: ON
Mode switch: FACE
10 to 14 V
A10-6 (AOD) - A11-6 (GND)
B - W-B
Mode switch signal
Ignition switch: ON
Mode switch: FACE
Below 1 V
A10-6 (AOD) - A11-6 (GND)
B - W-B
Mode switch signal
Ignition switch: ON
Mode switch: DEF
10 to 14 V
A10-7 (TPI) - A10-17 (SG-4)
BR - L
Recirculation/Fresh switch signal
Ignition switch: ON
Recirculation/Fresh switch: RECIRCULATION
Above 4 V
A10-7 (TPI) - A10-17 (SG-4)
BR - L
Recirculation/Fresh switch signal
Ignition switch: ON
Recirculation/Fresh switch: FRESH
Below 1 V
A10-8 (TPO) - A10-18 (SG-3)
Y - R
Mode switch signal
Ignition switch: ON
Mode switch: FACE
Below 1 V
A10-8 (TPO) - A10-18 (SG-3)
Y - R
Mode switch signal
Ignition switch: ON
Mode switch: DEF
Above 4 V
A10-9 (TPD) - A10-20 (SG-1)
P - BR
Temperature switch signal (Driver side)
Ignition switch: ON
Temperature switch: MAX.COOL
Above 4 V
A10-9 (TPD) - A10-20 (SG-1)
P - BR
Temperature switch signal (Driver side)
Ignition switch: ON
Temperature switch: MAX.HOT
Below 1 V
A10-10 (TPP) - A10-19 (SG-2)
V - W
Temperature switch signal (Passenger side)
Ignition switch: ON
Temperature switch: MAX.COOL
Above 4 V
A10-10 (TPP) - A10-19 (SG-2)
V - W
Temperature switch signal (Passenger side)
Ignition switch: ON
Temperature switch: MAX.HOT
Below 1 V
A10-11 (SG) - Body ground
L - Body ground
Ground for evaporator temperature sensor
Always
Below 1 V
A10-12 (TE) - A10-11 (SG)
GR - L
Evaporator temperature sensor signal
Ignition switch: ON
Evaporator temperature: 0°C (32°F)
2.2 to 2.6 V
A10-12 (TE) - A10-11 (SG)
GR - L
Evaporator temperature sensor signal
Ignition switch: ON
Evaporator temperature: 15°C (59°F)
1.3 to 1.7 V
A10-13 (S5-4) - A10-17 (SG-4)
B - L
Power supply for air inlet damper position sensor
Ignition switch: ON
4.5 to 5.5 V
A10-14 (AMDC) - A11-6 (GND)
LG - W-B
Temperature switch (Driver side)
Ignition switch: ON
Temperature switch: MAX.HOT
Below 1 V
A10-14 (AMDC) - A11-6 (GND)
LG - W-B
Temperature switch (Driver side)
Ignition switch: ON
Temperature switch: MAX.COOL
10 to 14 V
A10-15 (AMDH) - A11-6 (GND)
O - W-B
Temperature switch (Driver side)
Ignition switch: ON
Temperature switch: MAX.COOL
Below 1 V
A10-15 (AMDH) - A11-6 (GND)
O - W-B
Temperature switch (Driver side)
Ignition switch: ON
Temperature switch: MAX.HOT
10 to 14 V
A10-16 (AMPC) - A11-6 (GND)
R - W-B
Temperature switch (Passenger side)
Ignition switch: ON
Temperature switch: MAX.HOT
Below 1 V
A10-16 (AMPC) - A11-6 (GND)
R - W-B
Temperature switch (Passenger side)
Ignition switch: ON
Temperature switch: MAX.COOL
10 to 14 V
A10-17 (SG-4) - Body ground
L - Body ground
Ground for air inlet damper position sensor
Always
Below 1 V
A10-18 (SG-3) - Body ground
R - Body ground
Ground for air outlet damper position sensor
Always
Below 1 V
A10-19 (SG-2) - Body ground
W - Body ground
Ground for air mix damper position sensor (Passenger side)
Always
Below 1 V
A10-20 (SG-1) - Body ground
BR - W-B
Ground for air mix damper position sensor (Driver side)
Always
Below 1 V
A10-21 (S5-3) - A10-18 (SG-3)
V - R
Power supply for air outlet damper position sensor
Ignition switch: ON
4.5 to 5.5 V
A10-22 (S5-2) - A10-19 (SG-2)
L - W
Power supply for air mix damper position sensor (Passenger side)
Ignition switch: ON
4.5 to 5.5 V
A10-23 (S5-1) - A10-20 (SG-1)
GR - BR
Power supply for air mix damper position sensor (Driver side)
Ignition switch: ON
4.5 to 5.5 V
A10-24 (AMPH) - A11-6 (GND)
G - W-B
Temperature switch (Passenger side)
Ignition switch: ON
Temperature switch: MAX.COOL
Below 1 V
A10-24 (AMPH) - A11-6 (GND)
G - W-B
Temperature switch (Passenger side)
Ignition switch: ON
Temperature switch: MAX.HOT
10 to 14 V
  1. *1: LHD
  2. *2: RHD


  1. Waveform 1:



      E108906E07

    1. Measure the waveform between terminal BLW (A10-9) of the A/C amplifier assembly and body ground.

      OK:
      Waveform appears as shown in the illustration.

      HINT:
      Waveform cycle varies with the blower level.


HYBRID VEHICLE CONTROL ECU

HINT:
Check from the rear of the connector with it connected to the hybrid vehicle control ECU.


Terminal No.
(Symbols)
Wiring color
Terminal Description
Condition
Specification
H31-13 (PR2) - H31-20 (HP)
L-W - L-B
A/C pressure switch signal
Ignition switch: ON
A/C switch: ON
Refrigerant pressure: 0.196 to 3.14 Mpa (32 kgf/cm2)
Below 1 V
H31-13 (PR2) - H31-20 (HP)
L-W - L-B
A/C pressure switch signal
Ignition switch: ON
A/C switch: ON
Refrigerant pressure: Below 0.196 Mpa (2.0 kgf/cm2) or more than 3.14 Mpa (32 kgf/cm2)
10 to 14 V
H31-19 (TAM) - H34-28 (E2)
Y - BR
Ambient temperature sensor signal
Ignition switch: ON
at 25°C (77°F)
1.8 to 2.2 V
H31-19 (TAM) - H34-28 (E2)
Y - BR
Ambient temperature sensor signal
Ignition switch: ON
at 40°C (104°F)
1.2 to 1.6 V
H33-14 (CLK) - Body ground
G - Body ground
Compressor operation signal
Ignition switch: ON
Pulse generation
(See waveform A)
H33-15 (ITE) - Body ground
W - Body ground
Compressor operation signal
Ignition switch: ON
Pulse generation
(See waveform B)
H33-16 (ETI) - Body ground
Y - Body ground
Compressor operation signal
Ignition switch: ON
Pulse generation
(See waveform C)
H33-18 (STB) - Body ground
B - body ground
Compressor operation signal
Ignition switch: ON
10 to 14 V
H33-18 (STB) - Body ground
B - Body ground
Compressor operation signal
Ignition switch: OFF
Below 1 V
H31-4 (WP) - Body ground
L - Body ground
Water pump operation signal
Not operate the heater water pump
10 to 14 V
H31-4 (WP) - Body ground
L - Body ground
Water pump operation signal
Operate the heater water pump
Below 1 V


    E110722E01

  1. Waveform A:

    1. Measure the waveform between terminal CLK (H33-14) of the hybrid vehicle control ECU and body ground.

      OK:
      Waveform appears as shown in the illustration.

      HINT:
      Waveform cycle varies with the communication contents.



    2. E110723E02

  2. Waveform B:

    1. Measure the waveform between terminal ITE (H33-15) of the hybrid vehicle control ECU and body ground.

      OK:
      Waveform appears as shown in the illustration.

      HINT:
      Waveform cycle varies with the communication contents.



    3. E110724E02

  3. Waveform C:

    1. Measure the waveform between terminal ETI (H33-16) of the hybrid vehicle control ECU and body ground.

      OK:
      Waveform appears as shown in the illustration.

      HINT:
      Waveform cycle varies with the communication contents.


INTEGRATION CONTROL & PANEL ASSEMBLY

E068550E01

HINT:
Check from the rear of the connector with it connected to the integration control & panel assembly.


Terminal No.
(Symbols)
Wiring color
Terminal Description
Condition
Specification
C4-1 (+B) - C4-7 (GND)
O - W-B
Main power supply
Always
10 to 14 V
C4-2 (ACC) - C4-7 (GND)
GR - W-B
ACC power supply
Ignition switch: ACC
10 to 14 V
C4-4 (LP) - C4-7 (GND)
P - W-B
Security indicator
Security: Operate
10 to 14 V
C4-5 (MPX+) - C4-7 (GND)
L - W-B
Terminal for BEAN
Ignition switch: ON
Pulse generation
C4-7 (GND) - Body ground
W-B - Body ground
Ground for power supply
Always
Below 1 V
C4-8 (ILL+) - C4-14 (ILL-)
G - W
Power supply for illumination
Dimmer switch: OFF
Below 1 V
C4-8 (ILL+) - C4-14 (ILL-)
G - W
Power supply for illumination
Dimmer switch: TAIL or HEAD
10 to 14 V
C4-9 (IG+) - C4-7 (GND)
LG - W-B
IG power supply
Ignition switch: ON
10 to 14 V
C4-11 (F) - C4-7 (GND)
V - W-B
Hazard switch
Hazard switch: OFF
10 to 14 V
C4-11 (F) - C4-7 (GND)
V - W-B
Hazard switch
Hazard switch: ON
Below 1 V
C4-12 (MPX-) - C4-7 (GND)
R - W-B
Terminal for BEAN
Ignition switch: ON
Pulse generation
C4-14 (ILL-) - Body ground
W - Body ground
Ground for illumination
Always
Below 1 V

MULTI DISPLAY ASSEMBLY
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