2005 TOYOTA AVENSIS wiring

05−1 52
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
11 SWITCH STEP BY NUMBER OF MISFIRE CYLINDER(REFER TO RESULT OF STEP
4)
S If the result of step 4 is ” 1 or 2 cylinders”, proceed to A.
S If the result of step 4 is ”more than 3 cylinders”, proceed to B.
B CHECK FOR INTERMITTENT PROBLEMS
A
1 2 CHECK VALVE TIMING(CHECK FOR LOOSE AND JUMPED TOOTH OF TIMING
BELT)
NG ADJUST VALVE TIMING
OK
1 3 CHECK FUEL PRESSURE(LOW PRESSURE) (See page 11− 4)
NG CHECK AND REPLACE FUEL PUMP,
PRESSURE REGULATOR, FUEL PIPE LINE AND
FILTER
OK
1 4 CHECK FUEL PRESSURE(HIGH PRESSURE) (See page 11− 4)
NG CHECK AND REPLACE FUEL PUMP, FUEL
PRESSURE SENSOR, WIRING AND FUEL
LEAKAGE
OK

A76865
ECM
+B 1
E9
W−B 4
2
1
2
12
4A
W−B
Battery
EC 1 3
5
FL MAINB−R
EE (Shielded) 4EFI
No.1Engine
Room
R/B No. 4
B−W
B−R
Engine Room
R/B No. 4 EFI
Relay
B−Y 44
44
1
4B 1Engine Room
J/B No. 4 B−G
B−G EFI 1
1A 1Engine
Room
R/B No.1 GRB−R B−R
B−YB−YB−Y GRGR B−R
+B2 2
E9 D
J14
(LHD)(RHD)D
J28D
J14
(LHD)(RHD)D
J28
D
J14D
J28 J/C
B−R 2
IE4
(LHD) (RHD)3
IP1
7
IE3
(LHD) (RHD)7
IO1 2
IE1
B−YMREL 8
E9
BATT 3
E9
4 IE2V
IREL 35
E10 V
21 5
3INJ
Relay 44
44
R−B
IJF1 25
E13
G−W
#1 1
E13 5
E5
4
E5 IJF
IJT#1
W−R
#2 2
E13 1
E5 IJT#2
R−W
#3 3
E13 2
E5 IJT#3
W−L
#4 4
E13 3
E5 IJT#4
Electronic
Driver Unit
EA1 7Y 4
E4 INJ#1
1
2 I5
Injector No.1
BR
B−R 3
E4 INJ#4
1
2 I8
Injector No. 4
BR
BR 5
E4
COM1
P 1
E4 INJ#2
1
2 I6
Injector No. 2
L
B−W 2
E4 INJ#3
1
2 I7
Injector No. 3
L
L 6
E4 COM2 B
B (Shielded)
8
E4VB
W7
E4 GND
W−B
EF BR BR Engine
Room
J/B No.1
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−137
AVENSIS Supplement (RM1045E)
WIRING DIAGRAM

A14687
(V)
4.5
0.5
(0)019.6
(200)MPa
(kgf/cm2)
Output Voltage
Fuel Pressure
A00309
F16
Fuel Pressure Sensor
18
E13ECM
5V
E1 1R−W
23
Y−G 2
3
BR28
E2 PRVC
VOUT
GNDE13
E13 VCC
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−127
AVENSIS Supplement (RM1045E)
DTC P0190 FUEL RAIL PRESSURE SENSOR CIRCUIT
CIRCUIT DESCRIPTION
The fuel pressure sensor is installed on a fuel delivery pipe and
detects the fuel pressure. It controls of feedback the pump dis-
charge in order to keep the fuel at target pressure 8 to 13 MPa
(81.6 to 132.6 kgf/cm
2, 1,160 to 1,885 psi) by the ECM.
DTC No.DTC Detection ConditionTrouble Area
P0190Open or short in fuel pressure sensor circuit
SOpen or short in fuel pressure sensor circuit
SFuel pressure sensor
SECM
HINT:
After confirming DTC P0190, use the hand−held tester to confirm the fuel pressure in the delivery pipe in
DIAGNOSIS / OBD/MOBD / DATA LIST / ALL.
Fuel Pressure (MPa)Malfunction
Approximately 0SPR circuit short
19.6 or more
SVC circuit open or short
SPR circuit open
SE2 circuit open
WIRING DIAGRAM
05CKE−02

−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −1 09
AVENSIS Supplement (RM 1045E)
DTC P0 136 OXYGEN SENSOR CIRCUIT MALFUNCTION
(BANK 1 SENSOR 2)
DTC P0 156 OXYGEN SENSOR CIRCUIT MALFUNCTION
(BANK 2 SENSOR 2)
CIRCUIT DESCRIPTION
Refer to DTC P0 130 on page 05 −82.
DTC NoDTC Detection ConditionTrouble Area
P0 136
P0 156
If the following two conditions are satisfied at a time
(2 trip detection logic):
(a) The ECM records cycles which the vehicle runs and stops
8 times or more
(b) There was no change in the rich and lean output from
heated oxygen sensor (sensor 2) for the 360 seconds un-
der air −fuel ratio feedback control (Throttle was not closed)
S Open or short in heated oxygen sensor circuit
S Heated oxygen sensor (Bank 1, 2 Sensor 2)
S Heated oxygen sensor heater (Bank 1, 2 Sensor 2)
S EFI relay
HINT:
S Bank 1 refers to the No. 1 and No. 4 cylinders.
S Bank 2 refers to the No. 2 and No. 3 cylinders.
S Sensor 2 refers to the sensor farthest away from the engine assembly.
WIRING DIAGRAM
Refer to DTC P0 130 on page 05 −82.
05CKC −02

−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −1 01
AVENSIS Supplement (RM 1045E)
DTC P0 134 OXYGEN SENSOR CIRCUIT NO ACTIVITY
DETECTED (BANK 1 SENSOR 1)
DTC P0 154 OXYGEN SENSOR CIRCUIT NO ACTIVITY
DETECTED (BANK 2 SENSOR 1)
CIRCUIT DESCRIPTION
Refer to DTC P0 130 on page 05 −82.
DTC No.DTC Detection ConditionTrouble Area
P0 134
P0 154
After engine is warmed up, heated oxygen sensor (sensor 1)
output does not indicate RICH (greater than 0.45 V) even once
when conditions (a), (b), (c), (d) and (e) continue for at least 65
seconds ( 1 trip detection logic):
(a) Engine speed: 1,400 rpm or more
(b) Vehicle speed: 130 km/h (8 1 mph)
(c) Throttle valve is not fully closed
(d) 180 seconds or more after starting engine
(e) Engine coolant temperature is more than 40 _ C( 104 _ F)
S Open or short in heated oxygen sensor circuit
S Heated oxygen sensor (Bank 1, 2 Sensor 1)
S Heated oxygen sensor heater (Bank 1, 2 Sensor 1)
S EFI relay
S Air induction system
S Fuel pressure
S PCV hose connection
S PCV valve and hose
S Injector
S Gas leakage in exhaust system
S ECM
HINT:
S After confirming DTCs P0134 and P0154, confirm the output voltage of the heated oxygen sensor (bank
1, 2 sensor 1) in the DIAGNOSIS / OBD/MOBD / DATA LIST / ALL using the hand−held tester If the
output voltage of the heated oxygen sensor is less than 0.1 V, the heated oxygen sensor circuit may
be open or short.
S Bank 1 refers to the No. 1 and No. 4 cylinders.
SBank 2 refers to the No. 2 and No. 3 cylinders.
SSensor 1refers to the sensor closest to the engine assembly.
WIRING DIAGRAM
Refer to DTC P0 130 on page 05 −82.
05CKB −02

−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −1 07
AVENSIS Supplement (RM 1045E)
10 CHECK WHETHER MISFIRE IS OCCURRED OR NOT BY MONITORING DTC AND
DATA LIST
NG PERFORM TROUBLESHOOTING FOR MISFIRE
(See page 05 −1 46)
OK
11 CHECK AIR INDUCTION SYSTEM
(a) Check for vacuum leaks in the air induction system.
NG REPAIR OR REPLACE AIR INDUCTION SYSTEM
OK
1 2 CHECK FUEL PRESSURE(LOW PRESSURE) (See page 11− 4)
NG CHECK AND REPLACE FUEL PUMP,
PRESSURE REGULATOR, FUEL PIPE LINE AND
FILTER
OK
1 3 CHECK FUEL PRESSURE(HIGH PRESSURE) (See page 11− 4)
NG CHECK AND REPLACE FUEL PUMP, FUEL
PRESSURE SENSOR, WIRING AND FUEL
LEAKAGE
OK
1 4 CHECK FOR EXHAUST GAS LEAKS
NG REPAIR OR REPLACE EXHAUST GAS
LEAKAGE POINT (See Page 15− 2)
OK
1 5 CONFIRM IF ANY MISFIRING DTCS WERE PRESENT AT STEP 1
(a) Misfiring DTC P0301, P0302, P0303 and/or P0304 was present at step 1.
NO REPLACE HEATED OXYGEN SENSOR
YES

A85516
G and NE Signal Waveforms5V/
Division
G 20 msec./Division (Idling)
NE
A64984Camshaft Position Sensor
C1
Component Side:
05
−384
−
DIAGNOSTICS ECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
DTC P0340 CAMSHAFT POSITION SENSOR ”A” CIRCUIT (BANK1 OR SINGLE SENSOR)
CIRCUIT DESCRIPTION
Camshaft position sensor (G signal) consists of a magnet, iron core and pickup coil.
The G signal plate has one tooth on its outer circumference and is installed on the camshaft timing pulley.
When the camshafts rotate, the protrusion on the signal plate and the air gap on the pickup coil change,
causing fluctuations in the magnetic field and generating voltage in the pickup coil.
The ECM detects each cylinder position based on a combination of the G signal and a signal from the crank-
shaft position sensor (NE signal).
DTC No.DTC Detection ConditionTrouble Area
No camshaft position sensor si gnal to ECM durin g crankingOpe o sho t i ca shaft positio se so ci c itNo camshaft position sensor signal to ECM during cranking
(2 trip detection logic)S Open or short in camshaft position sensor circuit
S Camshaft position sensorP0340No camshaft position sensor signal to ECM at engine speed of
650 rpm or more
(1 trip detection logic)S Camshaft position sensor
S Camshaft timing pulley
S ECM
Reference: Inspection using the oscilloscope.
During idling the correct waveform is as shown in the diagram
on the left.
Tester ConnectionSpecified Condition
G+ (E12 −23) −G− (E12 −31)Correct waveform is as shown
WIRING DIAGRAM
Refer to DTC P0335 on page 05 −381.
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, freeze frame data can help determine if the vehicle was
running or stopped, if the engine was warmed up or not, if the air −fuel ratio was lean or rich, and other data
from the time the malfunction occurred.
1 INSPECT CAMSHAFT POSITION SENSOR
(a) Disconnect the C1 camshaft position sensor connector.
(b) Measure the resistance between the terminals of the
crankshaft position sensor.
Standard:
Tester ConnectionSpecified Condition
12835 to 1,400
at cold1−21,060 to 1,645
at hot
NOTICE:
”Cold” and ”Hot” shown above mean the temperature of
the coils themselves. ”Cold” is from −10_C( 14 _F) to 50 _C
( 1 22 _F) and ”Hot” is from 50 _C( 122 _F) to 100 _C(2 12_F).
(c) Reconnect the camshaft position sensor.
05B5J −07

A81003
MREL B−W
GR8
3 EFI MAIN Relay
W−BE9 E13
2 IE1
EE1
EFIB−R
(LHD) 1
B5
Battery FL MAINV4
VRV
VN 10
1
1
1
1A1 1
12 12 W
B−W 10GR
Engine Room R/B No. 1ECM
2
1
Engine Room
R/B No. 3 3
3 B
EC B−Y
(RHD) 05−376
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
DTC P0234 TURBO/SUPER CHARGER OVERBOOST
CONDITION
DTC P0299 TURBO/SUPER CHARGER UNDERBOOST
DTC P1251TURBO/SUPER CHARGER OVERBOOST
CONDITION (TOO HIGH)
CIRCUIT DESCRIPTION
DTC No.DTC Detection ConditionTrouble Area
P0234
When the condition that the turbocharger pressure exceeds the
standard value for 0.5 second or more
(1 trip detection logic)SVRV
SOpen or short in VRV circuit
TbhP0234
P0299
P1251Actual turbocharger pressure is deviated 20 kPa (150 mmHg,
5.9 in.Hg) or more from the simulated target pressure for 60
seconds
(1 trip detection logic)STurbocharger
SVacuum hose
SEGR valve
SECM
WIRING DIAGRAM
05I7M−01