TOYOTA AVENSIS 2005 Service Repair Manual

A78431
Crankshaft Position Sensor
A76790
Wire Harness SideCrankshaft Position Sensor Connector C6
A80459ECM Connector
NE+
NE± E13
05±618
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
1INSPECT CRANKSHAFT POSITION SENSOR(RESISTANCE)
(a)Measure the resistance between terminals 1 and 2. Resistance:
1,630 to 2,740
at cold
2,065 to 3,225
at hot
NOTICE:
ºColdº and ºHotº shown above mean the temperature of
the coils themselves. ºColdº is from ±10
C (14
F) to 50
C
(122
F) and ºHotº is from 50
C (122
F) to 100
C (212
F).
NGREPLACE CRANKSHAFT POSITION SENSOR (See page 10±64)
OK
2 CHECK HARNESS AND CONNECTOR(CRANKSHAFT POSITION SENSOR ± ECM)
(a) Disconnect the C6 crankshaft position sensor connector.
(b) Disconnect the E13 ECM connector.
(c) Check for continuity between the wire harness side con- nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
Crankshaft position sensor (C6±1) ± NE+ (E13±27)ContinuityCrankshaft position sensor (C6±2) ± NE± (E13±34)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
Crankshaft position sensor (C6±1) or NE+ (E13±27)
± Body ground
No continuityCrankshaft position sensor (C6±2) or NE± (E13±34) ± Body groundNo continuity
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
3 CHECK SENSOR INSTALLATION(CRANKSHAFT POSITION SENSOR)
NG TIGHTEN SENSOR
OK

±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
05±619
AVENSIS REPAIR MANUAL (RM1018E)
4CHECK CRANKSHAFT POSITION SENSOR PLATE(TEETH OF SENSOR
PLATE(CRANKSHAFT TIMING PULLEY))
(a)Check the teeth of the sensor plate.
NGREPLACE CRANKSHAFT POSITION SENSORPLATE (CAMSHAFT TIMING PULLEY)
OK
REPLACE ECM (See page 10±65)

A81003
MREL B±W
GR8
3 EFI MAIN Relay
W±BE9 E13
2 IE1
EE1
EFIB±Y 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 05±612
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0234 TURBO/SUPER CHARGER OVERBOOST
CONDITION
DTC P0299 TURBO/SUPER CHARGER UNDERBOOST
DTC P1251 TURBO/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 sec. or more. (1 trip detection logic)
VRV

Open or short in VRV circuit

TurbochargerP0234
P0299
P1251Actual turbocharger pressure is deviated 20 kPa (0.2 kgf/cm2,
2.9 psi) or more from the simulated target pressure based on
the engine speed and fue injection volume for 60 seconds.
Turbocharger

Vacuum hose

EGR valve

ECM
WIRING DIAGRAM
05CPS±01

±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
05±613
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
Read freeze frame data using \b
 . Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, it is useful for determi\
ning whether the vehicle was running
or stopped, the engine was warmed up or not, etc. at the time of the malfu\
nction.
1CHECK OTHER DTC OUTPUT(BESIDES DTC P0234, P0299 AND/OR P1251)
(a)Read the DTC using the hand±held tester. Result:
Display (DTC output)Proceed to
ºP0234, P0299 and/or P1251º are outputA
ºP0234, P0299 and/or P1251 and other DTCs are outputB
BGO TO RELEVANT DTC CHART (See page 05±544)
A
2 CHECK CONNECTION OF VACUUM HOSE
NG REPAIR OR REPLACE VACUUM HOSE
OK
3 CHECK VACUUM HOSE(CHECK VACUUM BETWEEN TURBOCHARGER ± VRV FOR INTAKE PRESURE CHANGE AT 900 RPM)
(a) Using a 3±way connector, connect a vacuum gauge to the hose between the E±VRV and turbocharger.
(b) Warm up the engine to above 80 \fC (176 \fF).
(c) Check the vacuum at 900 rpm.
Result:
Proceed toVacuum
A0 kPa (0 mmHg, 0 in.Hg) to 50 kPa (375 mmHg, 14.8 in.Hg)
BAbove 50 kPa (375 mmHg, 14.8 in.Hg)
B Go to step 8
A

A66060
E13
ECM ConnectorE12
VN
E1
A05967
E±VRV Signal Waveforms
GND
5V/
Division
1 msec./ Division
A15518Air
Air Filter
E
E
Air
F VRV: ON
VRV: OFF
05±614
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
4INSPECT ECM(VN VOLTAGE)
(a)Inspect using the oscilloscope.
(b)During idling, check the waveform between the specified terminals of the E12 and E13 ECM connectors.
Standard:
Symbols (Terminal No.)Specified condition
VN (E13±10) ± E1 (E12±7)Correct waveform is as shown
NGREPLACE ECM (See page 10±65)
OK
5INSPECT VACUUM REGULATING VALVE ASSY(OPERATION)
(a)Disconnect the vacuum hoses from the VRV.
(b)Turn the ignition switch ON.
(c)Check for operation of the E±VRV when it is operated by the hand±held tester.
VRV ON:
Air from port E flows out through port F.
VRV OFF:
Air from port E flows out through air filter.
NGREPLACE VACUUM REGULATING VALVE ASSY
OK
6INSPECT VACUUM REGULATING VALVE ASSY(RESISTANCE) (See page 12±16)
NG REPLACE VACUUM REGULATING VALVE ASSY
OK

A56869
V4
VRV Connector
Wire Harness Side
A80456
E13
ECM Connector
E2
VN
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
05±615
AVENSIS REPAIR MANUAL (RM1018E)
7CHECK HARNESS AND CONNECTOR(VRV ± ECM)
(a)Disconnect the V4 VRV connector.
(b)Disconnect the E13 ECM connector.
(c)Check the continuity between the wire harness side con-
nector.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
VN (E13±10) ± (V4±2)ContinuityE2 (E13±28) ± (V4±1)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
VN (E13±10) or (V4±2) ± Body groundNocontinuityE2 (E13±28) or (V4±1) ± Body groundNo continuity
NGREPAIR OR REPLACE HARNESS AND CONNECTOR
OK
8INSPECT TURBOCHARGER SUB±ASSY (See page 13±7)
NG REPLACE TURBOCHARGER SUB±ASSY (See page 13±11)
OK
9INSPECT EGR VALVE ASSY (See page 12±18)
NG REPLACE EGR VALVE ASSY (See page 14±286)
OK
REPLACE ECM (See page 10±65)

A81481
EDU Wiring DiagramCOM3
COM1 COM2
Pressure
Discharge
Valve
Injector
INJ#1
INJ#4INJ#2INJ#3
PRV
GND
EDU Connector
Control
Circuit
DC/DC
Converter
BATTERY
IJT#1
IJT#4
IJT#2
IJT#3PRDIJF
ECM
Maximum 150 V
Confirmation
Pulse Command
Pulse
Warning:
Terminal J, I, H, K, L, M, N and S are high voltage
E5
E4
Maximum 150 V
05±604
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0200INJECTOR CIRCUIT / OPEN
HINT:

For more information on the EDU, see page 05±517.

If P0200 are present, Use the diagnostic trouble code matrix for fuel sy\
stem, see page 05±517.
CIRCUIT DESCRIPTION
The EDU has been adopted to drive the injector at high speeds. The EDU has \
realized high±speed driving
under high fuel pressure conditions using the DC/DC converter that provides a\
high±voltage, quick±charging
system.
Soon after the EDU receives an injection command signal (IJT) from the\
ECM, the EDU responds to the com-
mand with injector injection confirmation signal (IJF) when the current is\
applied to the injector.
05CPR±01

A81495
Malfunction Detection
ECMCommand Signal (IJT)
EDU
Confirmation Signal (IJF)
Injection
Command Signal
Injection
Confirmation SignalIJFON
OFF
NormalAbnormal
IJT
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±605
AVENSIS REPAIR MANUAL (RM1018E)DTC No.
DTC Detection ConditionTrouble Area
P0200
Open or short in EDU or injector circuit. After engine is started,
there is no injection confirmation signal (IJF) from EDU to
ECM, despite the ECM sending injection command signal
(IJT) to the EDU.
Open or short in EDU circuit

Injector

EDU

ECM
MONITOR DESCRIPTION
P0200 (Open or short in EDU or injector circuit):
The ECM always monitors both the injection command signal (IJT) and injection confirmation signal (IJF).
This DTC will be set if the ECM judged that the number of IJT signals and IJF signals are inconsistent.
The EDU monitors a drive current supplied to the injector and interprets the IJF signal as low if the current
exceeds the specified level, and then it indicates that there is the current in the injector.
P0200 refers to malfunction of injector drive circuit or injector circuit.
If this DTC is present, the ECM enters fail±safe mode and limits the engine power. The fail±safe mode will
continue until the ignition switch is turned OFF.
MONITOR STRATEGY
Required sensorsIJF signal from EDU
Frequency of operationContinuous
Duration10 sec.
CHK ENG operation1 driving cycle
TYPICAL ENABLING CONDITIONS
ItemSpecificationItemMinimumMaximum
Engine speed500 rpm±
Battery voltage11 V±
Ignition switchON

A81001
B±Y
BATTECM
E102 7
IE3B±Y
10
EE17
IO1
INJF E1325
R±B
E57
IJF B±W
+B
E91
B±W 8
IK1 B±W
GR
MREL 8
GR 2
IE1 E9
Y
IREL 10 4
IE2 E9Y GR
B±W B±W
B±Y111
1 1 1 11
1 3
2 5EFI
MAIN
Relay1 3
2 5EDU
Relay
R±B
B±Y
B7
EE1(LHD) (RHD)
EDU
#1 E1324
G±W
IJT#1
#2 E1323
W±R
IJT#2
#3 E1322
R±W
IJT#3
#4 E1321
W±L
IJT#4E56
E53
E52
E55
1
11 2
EFI
1A
3
3
B
FL MAIN
BatteryEngine
Room
R/B No. 1
Engine Room
R/B No. 3W±B
W±B
EC(Shielded)
D J12 E J12
E J13 D J13
BR J/CBR
W±B G
EIE48
BATTERY
E5 GND1W INJ#1
E44
12B±R I5 Injector No. 1
B
INJ#4
E43
12B±R I8 Injector No. 4
Y
INJ#2
E42
12L I6 Injector No. 2
V
INJ#3
E41
12L I7 Injector No. 3 B±R
COM1E45
L
COM2 E46 BRE58
E47
COM3 BPRD E1332
R±L
E54
PRD Engine
Room
R/B No. 1
(Shielded)
D J12BRPRV 1
EA1
2
EA1 1
2W
W
B
P3
Pressure
Discharge
Valve
05±606
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
TYPICAL MALFUNCTION THRESHOLDS
Threshold
If injection missing counter* is accumulated a specified number of times successively, or if injection missing counter for either one of the
cylinders is accumulated a specified number of times successively (Approximately 1 second or more).
*: Injection missing counter increments when no IJF signal from the EDU despite the ECM sending the IJT signal.
WIRING DIAGRAM

A81508
ECM EDU
IJT#1 INJF
COM1 IJF
IJT#4
IJT#2
IJT#3 #1
#4
#2
#3INJ#1
INJ#4
INJ#2
INJ#3 COM2
Injector
AB
Warning: Terminal COM1, COM2, and INJ#1 to 4 are high±voltage
C DHigh±voltage Area
A09438
#1
#2#3
#45 V/
Division
20 msec./Division Signal Waveform
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±607
AVENSIS REPAIR MANUAL (RM1018E)
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 º B and Cº at the same time.
Malfunction pointTrouble area
A
ECM
B (if A is normal)
Open or short in º#1 to #4 (ECM)º ± ºIJT#1 to #4 (EDU)º harness or connector.
C (if A and B are normal)

Open or short in ºINJ#1 to #4 (EDU)º ± ºCOM1 and/or COM2º (EDU) circuit.

Injector

EDU
D (if A, B and C are normal)
Open or short in ºIJF (EDU)º ± ºINJF (ECM)º circuit. (P1271 is set simultaneously)
(a) Reference: Inspect using the oscilloscope.
The correct waveform is as shown in the diagram on the
left.
Inspection PointsSpecified Condition
A and BCorrect waveform is as shown