2005 TOYOTA AVENSIS wiring

I35376
A3
A/C Pressure Sensor A/C Control Assembly
VC
3B±W
IE2 A16 S516 7
B±W
GND
1G±W
IE2 A16 SG18 8
G±W
VOUT
2L±W
IE2 A16 PRE7 17
L±W 05±1116
± DIAGNOSTICSAIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC 23 PRESSURE SWITCH CIRCUIT
CIRCUIT DESCRIPTION
The pressure sensor sends the appropriate signals to the A/C amplifier assy when the A/C refrigerant pres-
sure drops too low or rises too high. When the A/C amplifier receives these signals, it outputs signals though
the A/C amplifier to switch OFF the compressor relay and turns the magnetic clutch OFF.
DTC No.Detection ItemTrouble Area
23

Open in pressure sensor circuit.

Abnormal refrigerant pressure.
below 196 kPa (2.0 kgf/cm
2, 28 psi)
over 3,140 kPa (32.0 kgf/cm2, 455 psi)

A/C tube assy (pressure sensor)

Harness or connector between A/C tube assy (pressure sen-
sor) and A/C amplifier assy

A/C amplifier assy
WIRING DIAGRAM
0564B±07

Resistance of photodiode
Strength of solar radiationWeak Strong
High
Low
I35375
TSP A16 L21 A18
A/C Solar Sensor
2IF11A/C Control Assembly
L
TSD A16 LG9
3IF12
LG
S5±4 A16 O15
1IF13
O
± DIAGNOSTICSAIR CONDITIONING SYSTEM
05±1113
AVENSIS REPAIR MANUAL (RM1018E)
DTC 21 SOLAR SENSOR CIRCUIT(PASSENGER
SIDE)
CIRCUIT DESCRIPTION
A photo diode in the solar sensor detects solar radiation and
sends signals to the A/C amplifier.
DTC No.Detection ItemTrouble Area
Open or short in solar sensor circuit
Automatic light control sensor (solar sensor)
21
Open or short in solar sensor circuit.
(If the checking is being performed in a dark place, DTC 21g()

Harness or connector between automatic light control sensor
(solar sensor) and A/C amplifier assy(gg ,
could be displayed.)(solar sensor) and A/C amplifier assy

A/C amplifier assy
WIRING DIAGRAM
05C7M±01

I35373
A/C Control Assembly
16
A15 SG±4 W±G
1 A19
A/C Thermistor
2B10
A16 TE
± DIAGNOSTICSAIR CONDITIONING SYSTEM
05±1109
AVENSIS REPAIR MANUAL (RM1018E)
DTC 13 EVAPORATOR TEMPERATURE SENSOR
CIRCUIT
CIRCUIT DESCRIPTION
This sensor detects the temperature inside the cooling unit and sends the appropriate signals to the A/C
amplifier.
DTC No.Detection ItemTrouble Area

Cooler thermistor No.1 (evaporator temp. sensor)
13Open or short in evaporator temperature sensor circuit.
()

Harness or connector between cooler thermistor No.1 (evap-
orator tempsensor) and A/C amplifier assyorator temp. sensor) and A/C amplifier assy

A/C amplifier assy
WIRING DIAGRAM
050TN±10

I35374
C10P±B
22 1
IC1
A1 A/C Ambient Temp. SensorA15 MPX±A/C Control Assembly Combination Meter
*1: 1CD±FTV
*2: 1AZ±FSE
*3: 1AZ±FE, 1ZZ±FE, 3ZZ±FEIC1 P±B P P10 20
11 I14
Integration Relay
C10P
E9A15 MPX+ 20
E1018 Engine and ECT ECU (A/T)Engine ECU (M/T)
(*2) (*1)E921
E1029
(*2) (*1) 14
10 13
P±B
C10W
IE14 12
W
21
C10W±R
IE115 11
W±R MPX2 MPX1
MPX2 MPX1 23
E9
(*3)29
E9
(*3) 05±1106
± DIAGNOSTICSAIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC 12 AMBIENT TEMPERATURE SENSOR CIRCUIT
CIRCUIT DESCRIPTION
This sensor detects the temperature outside the cabin and sends the appropriate signals to the A/C amplifier.
DTC No.Detection itemTrouble Area
12Open or short in ambient temperature sensor circuit

Thermistor assy (ambient temp. sensor)

Harness or connector between thermistor assy (ambient
temp. sensor) and combination meter

Combination meter

Harness or connector between combination meter and A/C
amplifier assy

A/C amplifier assy
WIRING DIAGRAM
05C7L±01

I35373
A/C Control Assembly
22
6 A16 TR
SG±5 GR
G
12 A17
A/C Room Temp. Sensor
A16 05±1102
± DIAGNOSTICSAIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC 11 ROOM TEMPERATURE SENSOR CIRCUIT
CIRCUIT DESCRIPTION
This sensor detects the temperature inside the cabin and sends the appreciate signals to the A/C amplifier.
DTC No.Detection itemTrouble Area
11Open or short in room temperature sensor circuit

Cooler thermistor (room temp. sensor)

Harness or connector between cooler thermistor (room temp.
sensor) and A/C amplifier assy

A/C amplifier assy
WIRING DIAGRAM
05A7M±02

05C7K±01
I36145
A15A16
1211
2423 19 1615
20191817161514131211 8 7 6 5 4 3 2 1
10 9 8 7 6 5 4 3 2 1 10 9
2221 1817 141320 05±1098
± DIAGNOSTICSAIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
TERMINALS OF ECU
1. AIR CONDITIONER AMPLIFIER ASSY
Terminal No. (Symbols)Wiring ColorConditionSpecification
A16±5 (BLW) ±
A16±13 (GND)R ± W±BIG SW: ON
Front blower: OperatePulse generation
A16±7 (PRE) ±
A16±18 (SG)L±W ± G±W
Start engine
Refrigerant pressure: 0 kPa (0 kgf/cm2, 0 psi)
3,138 MPa
(32.0 kgf/cm2, 455 psi)
0.5
4.8 V
A15±20 (MPX±) ±
A16±13 (GND)P ± W±BMultiplex communication circuit±
A15±10 (MPX+) ±
A16±13 (GND)P±B ± W±BMultiplex communication circuit±
A15±6 (FRS) ±
A16±13 (GND)P±B ± W±BIG SW: ON
R/F SW: RECIRCULATION
FRESH10 to 14
Below 1.0 V
A15±5 (REC) ±
A16±13 (GND)R±Y ± W±BIG SW: ON
R/F SW: FRESH
RECIRCULATION10 to 14
Below 1.0 V
A16±17 (HR) ±
A16±13 (GND)GR±R ± W±BIG SW: ON
Front blower: OFF
Operate10 to 14
Below 1.0 V
A15±4 (AOF) ±
A16±13(GND)L±B ± W±BIG SW: ON
Mode switch: DEF.
FACEBelow 1.0
10 to 14 V
A15±3 (AOD) ±
A16±13 (GND)LG±B ± W±BIG SW: ON
Mode switch: FACE
DEF.Below 1.0
10 to 14 V
A16±12 (IG) ±
A16±13 (GND)R±W ± W±BIG SW: LOCK
ONBelow 10 to 14 V
A15±2 (AMPH) ±
A16±13 (GND)W ± W±BIG SW: ON
Set passenger side temp.: MAX. COOL
MAX. HOTBelow 1.0
10 to 14 V
A15±1 (AMPC) ±
A16±13 (GND)Y ± W±BIG SW:
Set passenger side temp.: MAX HOT
MAX. COOLBelow 1.0
10 to 14 V
A15±12 (AMDH) ±
A16±13 (GND)P±L ± W±BIG SW:
Set driver side temp.: MAX. COOL
MAX. HOTBelow 1.0
10 to 14 V
A15±11 (AMDC) ±
A16±13 (GND)B ± W±BIG SW:
Set driver side temp.: MAX HOT
MAX. COOLBelow 1.0
10 to 14 V
A16±13 (GND) ±
Body groundW±B ± Body groundAlwaysContinuity
A16±24 (+B) ±
A16±13 (GND)W±R ± W±BAlways10 to 14 V
A16±8 (TPD) ±
A15±14 (SG±2)GR ± Y±RIG SW: ON
Set driver side temp.: MAX HOT
MAX. COOL1.0
4.0 V
A16±20 TPP ±
A15±13 (SG±1)V ± PIG SW: ON
Set passenger side temp.: MAX HOT
MAX. COOL1.0
4.0 V
A16±9 (TSD) ±
A16±13 (GND)LG ± W±BIG SW: ON
Solar sensor subject to electric light0.8 to 3.3 V
A16±21 (TSP) ±
A16±13 (GND)L ± W±BIG SW: ON
Solar sensor subject to electric light0.8 to 3.3 V

I35419
A10A9
± DIAGNOSTICSAIR CONDITIONING SYSTEM
05±1099
AVENSIS REPAIR MANUAL (RM1018E)Terminal No. (Symbols)Specification Condition Wiring Color
A16±22 (TR) ±
A16±6 (SG±5)GR ± GIG SW: ON
Cabin temp.: 25
C (77
F)
40
C (104
F)1.8 to 2.2
1.2 to 1.6 V
A16±10 (TE) ±
A15±16 (SG±4)B ± W±GEvaporator temp.: 0
C (32
F)
15
C (59
F)2.0 to 2.4
1.4 to 1.8 V
A16±23 (ILL+) ±
A16±13 (GND)G ± W±BLight control switch TAIL or HEAD10 to 14 V
A16±19 (TPM) ±
A15±15 (SG±3)GR±R ± G±WIG SW: ON
Set air flow setting: DEF.
FACE1.0
4.0 V
A15±8 (SOL+) ±
A16±13 (GND)R ± W±BStart engine
Compressor: OperatePulse generation
A15±7 (MGV) ±
A16±13 (GND) (*1)R±Y ± W±BStart engine
Hot gas heater: Operate10 to 14
Below 1.0 V
A16±11 (HOTGASIN) ±
A16±13 (GND) (*1)G±Y ± W±BIG SW: ON
Hot Gas SW: ON10 to 14 V
A16±16 (S5) ±
A16±18 (SG)B±W ± G±WIG SW: LOCK
ON0
5.0 V
A16±1 (S5±1) ±
A15±13 (SG±1)R ± PIG SW: LOCK
ON0
5.0 V
A16±2 (S5±2) ±
A15±14 (SG±2)Y±B ± Y±RIG SW: LOCK
ON0
5.0 V
A16±14 (S5±3) ±
A15±15 (SG±3)BR±W ± G±WIG SW: LOCK
ON0
5.0 V
A16±15 (S5±4) ±
A16±9 (TSD)O ± LGIG SW: LOCK
ON1.7
4.2 V
A16±15 (S5±4) ±
A16±21 (TSP)O ± LIG SW: LOCK
ON1.7
4.2 V
A15±17 (CFAN) ±
A16±13 (GND)W±R ± W±BStart engine
Condenser fan: operate10 to 14
Below 1.0 V
A16±19 (PBKIG) ±
A17±13 (GND)B±W ± W±BIG SW: ON
PARKING BRAKE SW: OFF
ON10 to 14
Below 1.0 V
A17±3 (PBLT) ±
A17±13 (GND) (*3)L±R ± W±BIG SW: ON
SEAT BELT SIGNAL: OFF
ON10 to 14
Below 1.0 V
A17±4 (RDEFIN) ±
A17±13 (GND) (*2)G±W ± W±BIG SW: ON
RDEF RELAY : OFF
ONBelow 1.0
10 to 14 V
(*1) Diesel (standard) only
(*2) Petrol only
(*3) Except 1AZ±FE
2. COMBINATION METER
Terminal No. (Symbols)Wiring ColorConditionSpecification
C10±17 (Z1H) ±
Body groundW±B ± Body groundAlwaysContinuity
C10±11 (HAY) ±
C10±12 (HAZ)W±R ± WIG SW: ON
Ambient temp.: 25
C (77
F)
40
C (104
F)1.35 to 1.75

0.85 to 1.25 V

I35410
BB WEngine Room R/B No.3Engine Room R/B No.1,
Engine Room J/B No.1Power Heater ECU
3 3 1A 1
12 PWR HTR
P15
+
FL MAIN
Battery
ECW±B W±BJ2
J/C
AAP11
± 1
± DIAGNOSTICSCOMBUSTION TYPE POWER HEATER SYSTEM
05±1171
AVENSIS REPAIR MANUAL (RM1018E)
ECU POWER SOURCE CIRCUIT
CIRCUIT DESCRIPTION
This is power source for the power heater ECU and power heater fuel pump.
WIRING DIAGRAM
05C80±01