2005 TOYOTA AVENSIS wiring

A81013
ECM
+BMREL IGSW J27
9
B±W I13
Ignition Switch
6IGNB±W E
E1
EE110BR
W±B 1Driver Side J/B
2 2
1E9
E9
E98
1
7
E12 J26A
B±W
C C B±W
J8
J/C DA 18
DH2
4
B±Y
EFI51
32 EFI
MAIN
Relay
B±W Engine Room R/B No. 1IK1
8J/C
IE12
BR B±R
Battery AM2B±W
EC
EI
AM2 IG2
GR
B B
33
Engine Room R/B No. 3
FL MAIN1 1
1 1A1 1
1 1 B±R B±R
IE4 1(LHD)
IP1
1(RHD)B±W (RHD) (RHD)
(LHD)
(LHD)
GR 05±686
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
ECM POWER SOURCE CIRCUIT
CIRCUIT DESCRIPTION
When the ignition switch is turned ON, battery positive voltage is applied to terminal IGSW of the ECM and
the EFI MAIN relay (Marked: EFI MAIN) control circuit in the ECM sends a signal to terminal MREL of the
ECM switching on the EFI MAIN relay.
This signal causes current to flow to the coil, closing the contacts of the EFI MAIN relay and supplying power
to terminal +B of the ECM.
If the ignition switch is turned off, the ECM continues to switch on the EFI MAIN relay for a maximum of 2
seconds for the initial setting of the throttle valve.
WIRING DIAGRAM
05B5V±03

A76878
A20
Accelerator Pedal
Position Sensor
VCP16 (LHD)
E926ECM
VCPA B
4 (RHD)
(LHD)B
(LHD) 5
IG2
B
(RHD)
VPA15 (LHD)
E922
VPA G
5 (RHD)
(LHD)G
(LHD) 6
IG2
G
(RHD)
EP13 (LHD)
E928
EPA Y
1 (RHD)
(LHD)Y
(LHD) 1
IG2
Y
(RHD)
VCP24 (LHD)
E927
VCP2 B
6 (RHD)
(LHD)B
(LHD) 7
IG2
B
(RHD)
VPA22 (LHD)
E923
VPA2 W
2 (RHD)
(LHD)W
(LHD) 2
IG2
W
(RHD)
EP21 (LHD)
E929
EPA2 Y
3 (RHD)
(LHD)Y
(LHD) 3
IG2
Y
(RHD)
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±677
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand±held tester. Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running
or stopped, the engine was warmed up or not, etc. at the time of the malfunction.

A80999
EDU
1 R±L
PRDECM
E1332
1
EA1 PRDR±L
E54
W
PRVE58
B
COM3
E472 P3
Pressure Discharge Valve
W
B 2
EA1
(Shielded) (Shielded)
BR
BR
BR
EIJ12D
J12E
J13D J13E J/C
A81507
ECMEDU
PRD
Pressure
Discharge
Valve
INJFCOM3 A
PRD
IJFPRV B
C
D
Warning: Terminals COM3 and PRD are high±voltage
High±voltage Area
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±667
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM
PULSE GENERATION INSPECTION
HINT:
Problem area can be identified by inspecting waveform at the following inspection points.
HINT:
Inspect the following inspection points ºA and Dº or ºB and Cº at the same time.
Malfunction pointTrouble area
A
ECM
B (If A is normal)
Open or short in ºPRD (ECM)º ± ºPRD (EDU)º circuit.
C (If A and B are normal)

Open or short in ºPRV (EDU)º ± ºCOM3 (EDU)º circuit.

Pressure discharge valve

EDU
D (If A, B and C are normal)
Open or short in ºIJF (EDU)º ± ºINJF (ECM)º circuit. (P0200 is set simultaneously)

A80997
S6
Suction Control ValveECM
E132
PCV+
2 1
LG LG±R
PCV± E131
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±655
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0627 FUEL PUMP CONTROL CIRCUIT / OPEN
CIRCUIT DESCRIPTION
DTC No.DTC Detection ConditionTrouble Area
P0627Open or short in suction control valve circuit for more than 0.5
sec. (1 trip detection logic).
Open or short in suction control valve circuit

Suction control valve

ECM
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Read freeze frame data using   
 . Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running
or stopped, the engine was warmed up or not, etc. at the time of the malfunction.
05CPZ±01

A81011A81005
ECM
ALT 8
E13
G±Y
1
2 3
Battery
EI B±L
B
FL
MAINALT
12
3B
Engine Room
R/B No. 3
IJBR
B
B 35 15DH
DN 1 DH
18DB 9 DA ECU±IG I13
Ignition Switch 3
1
AM1AM1 IG1
G±R
ED1 1
WDriver
Side J/B
IG1
RelayA12 1
BB±L
A11 3
MY
A11 4
LRL 9
E12
Generator
IGS
21
A11A11
R±W
B
IK21
EE15
B
R±W R±WW±B
ALT±S
1 2 1
11AEngine
Room
R/B No. 1E1 7
E12
BBR G J10(LHD)
C J20(RHD)
J/C
G J10(LHD)
C J20(RHD) 33
W±B 05±652
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM

A81010
B±Y
12
E10
2 Engine Room R/B No. 1
IE37
BATT
Battery BB
33
FL MAIN1
1A
1 Engine Room R/B No. 3
EFI
IO17
B±YECM
(LHD) (RHD)
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±647
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0560 SYSTEM VOLTAGE
CIRCUIT DESCRIPTION
While the ignition switch is OFF, the battery positive voltage is supplied to terminal BATT of the ECM for the
DTCs memory and air±fuel ratio adaptive control value memory, etc.
DTC No.DTC Detection ConditionTrouble Area
P0560Open in back±up power source circuit (1 trip detection logic).
Open in back±up power source circuit

ECM
HINT:
If DTC P0560 appears, the ECM does not store other DTC.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Read freeze frame data using   
 . Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running
or stopped, the engine was warmed up or not, etc. at the time of the malfunction.
05CPX±01

F45133
1 2 33ALT Engine Room R/B No.3
B (*2) W (*2) B±G (*1)
ALT 1
4D 1
1
4B Engine Room J/B No.4 ED1
BatteryFL MAIN
*1: Gasoline
*2: 1CD±FTV
*3: LHD
*4: RHD B±G (*1)
B±L (*2)
1
5918
1 53
2
1
DH DA DB DN
DH
AM1 ECU±IG IG Relay
W±BS21
GND1 GND2
S24
W±BW±B
EA W±B
IJ B (*2) B±G (*1)G±Y R±W
W±B
G±R G±Y G±YR±W R±W
R±W J/C
J10 J20 J10 J20 S2 IG1GC GC 1822
IE1Skid Control ECU
with Actuator
(*3) (*4) (*3) (*4)
I13
Ignition SW
1 3
B±L (*2)
Driver Side J/B
± DIAGNOSTICSABS WITH EBD SYSTEM
05±727
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM

F45132
Battery FL MAINSkid Control ECU
with Actuator
B±G (*1) R (*1)
1 ALT ABS Engine Room R/B No.4 & Engine Room J/B No.4
1
4B
W±BS2
S21 3
+BS
12
1 2
GND1 GND2
S24
W±BW±B
*1: Gasoline
*2: 1CD±FTVEA4
R (*2)
W (*2)
2 12 33 11B1ABS ALT Engine Room R/B No.3Engine Room R/B No.1 &
Engine Room J/B No.1
B (*2)
B±G (*1) 05±722
± DIAGNOSTICSABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC C0278/11 OPEN OR SHORT CIRCUT IN ABS
SOLENOID RELAY
CIRCUIT DESCRIPTION
This relay supplies power to each ABS solenoid. After the ignition switch is turned ON, if the initial check is
OK, the relay goes on.
DTC No.DTC Detecting ConditionTrouble Area
C0278/11
Detection of any conditions from 1 to 3:
1. Internal circuit malfunction in ECU.
2. Valve relay voltage is 0.8 x IG or less for 0.5 sec.
3. Valve relay voltage is high level at valve relay OFF.

ABS solenoid relay

ABS solenoid relay circuit
WIRING DIAGRAM
056SS±06