TOYOTA AVENSIS 2005 Service Repair Manual

A76903
HT1B (+)HT1A (+)
HT2A (+)
HT2B (+)
E03 (−)
ECM Connector E12
E11
05−52
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
3 INSPECT ECM(HT1A, HT1B, HT2A OR HT2B VOLTAGE)
(a) Turn the ignition switch to ON.
(b) Measure the voltage between the applicable terminals of
the E11and E12 ECM connectors.
Standard:
Tester ConnectionSpecified Condition
HT1A(E12−5)−E03 (E11 −7)9to14V
HT1B(E12−25)−E03 (E11 −7)9to14V
HT2A (E12−4)−E03 (E11 −7)9to14V
HT2B (E12−33)−E03 (E11 −7)9to14V
HINT:
SThe HT1A means the heated oxygen sensor bank1sen-
sor1.
SThe HT1B means the heated oxygen sensor bank1sen-
sor 2.
SThe HT2A means the heated oxygen sensor bank 2 sen-
sor1.
SThe HT2B means the heated oxygen sensor bank 2 sen-
sor 2.
OK REPLACE ECM (See page10−65 of Pub. No.
RM1018E AVENSIS)
NG

A66290
Wire Harness Side:
B1S1
B1S2
B2S1B2S2 H7
H9
H8
H10
Heated Oxygen Sensor Connector HT
HT
+B+B
Front View
A81695
HT1A
HT2BHT2A
HT1B
E12
ECM Connector
A66053
Engine Room R/B No. 4:
EFI Relay
A90210
Engine Room R/B No. 4:
EFI No.2 fuse
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−53
AVENSIS Supplement (RM1045E)
4 CHECK HARNESS AND CONNECTOR(HEATED OXYGEN SENSOR−ECM,
HEATED OXYGEN SENSOR−EFI RELAY)
(a) Check the harness and connector between the ECM and
heated oxygen sensor connectors.
(1) Disconnect the H7, H8, H9 or H10 heated oxygen
sensor connector.
(2) Disconnect the E12 ECM connector.
(3) Check the resistance between the wire harness
side connectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
HT (H7−1)−HT1A(E12−5)Below1

HT (H8−1)−HT1B(E12−25)Below1

HT (H9−1)−HT2A (E12−4)Below1

HT (H10−1)−HT2B (E12−33)Below1

Standard (Check for short):
Tester ConnectionSpecified Condition
HT (H7−1)or HT1A(E12−5)−Body ground10k
or higher
HT (H8−1)or HT1B(E12−25)−Body ground10k
or higher
HT (H9−1) or HT2A (E12−4)−Body ground10k
or higher
HT (H10−1) or HT2B (E12−33)−Body ground10k
or higher
(4) Reconnect the heated oxygen sensor connector.
(5) Reconnect the ECM connector.
(b) Check the harness and connector between the heated
oxygen sensor and EFI relay.
(1) Inspect the EFI No.2 fuse.
SRemove the EFI No.2 fuse from the engine
room R/B No. 4.
SCheck for continuity in the EFI No.2 fuse.
Standard: Continuity
SReinstall the EFI No. 2 fuse.
(2) Disconnect the H7, H8, H9 or H10 heated oxygen
sensor connector.
(3) Remove the EFI relay from the engine room R/B No.
4.
(4) Check the resistance between the wire harness
side connectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
+B (H7−2)−Engine room R/B No. 4 (EFI relay terminal 3)Below1

+B (H8−2)−Engine room R/B No. 4 (EFI relay terminal 3)Below1

+B (H9−2)−Engine room R/B No. 4 (EFI relay terminal 3)Below1

+B (H10−2)−Engine room R/B No. 4 (EFI relay terminal 3)Below1

05−54
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
Standard (Check for short):
Tester ConnectionSpecified Condition
+B (H7−2) or Engine room R/B No. 4 (EFI relay terminal 3)−
Body ground10k
or higher
+B (H8−2) or Engine room R/B No. 4 (EFI relay terminal 3)−
Body ground10k
or higher
+B (H9−2) or Engine room R/B No. 4 (EFI relay terminal 3)−
Body ground10k
or higher
+B (H10−2) or Engine room R/B No. 4 (EFI relay terminal 3)−
Body ground10k
or higher
(5) Reconnect the heated oxygen sensor connector.
(6) Reinstall the EFI relay.
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE ECM (See page10−65 of Pub. No. RM1018E AVENSIS)

05−48
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
DTC P00 16 CRANKSHAFT POSITION − CAMSHAFT
POSITION CORRELATION (BANK 1 SENSOR
A)
CIRCUIT DESCRIPTION
Refer to DTC P0335 on page 05 −1 60.
DTC No.DTC Detection ConditionTrouble Area
P00 16Deviation in crankshaft position sensor signal and camshaft
position sensor (bank 1) signal (2 trip detection logic)S Mechanical system
(Timing chain has jumped a tooth, chain stretched)
S ECM
WIRING DIAGRAM
Refer to DTC P0335 on page 05 −1 60.
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 CHECK VALVE TIMING(CHECK FOR LOOSE AND A JUMPED TOOTH OF TIMING
CHAIN) (See page 14− 45)
NG ADJUST VALVE TIMING (See page 14− 45)
(REPAIR OR REPLACE TIMING CHAIN)
OK
REPLACE ECM (See page 10− 65 of Pub. No. RM 1018E AVENSIS)
05CE0 −02

A71007
Mass Air Flow Meter Crankshaft Position Sensor
Actual Valve TimingCorrection Target Valve Timing
Feedback
Duty Control ECM
Camshaft Timing
Oil Control
Valve (OCV)
Vehicle Speed Signal Engine Coolant Temp. SensorThrottle Position Sensor
Camshaft Position Sensor
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−41
AVENSIS Supplement (RM1045E)
DTC P0010 CAMSHAFT POSITION ”A” ACTUATOR
CIRCUIT (BANK1)
HINT:
This is the troubleshooting procedure of the oil control valve (OCV).
CIRCUIT DESCRIPTION
The Variable Valve Timing (VVT) system includes the ECM, the Oil Control Valve (OCV) and the VVT control-
ler. The ECM sends a target ”duty−cycle” control signal to the OCV. This control signal, applied to the OCV,
regulates the oil pressure supplied to the VVT controller. Camshaft timing control is performed based on en-
gine operation conditions such as intake air volume, throttle position and engine coolant temperature.
The ECM controls the OCV based on the signals output from several sensors. The VVT controller regulates
the intake camshaft angle using oil pressure through the OCV. As result, the relative position between the
camshaft and the crankshaft is optimized, and the engine torque improves, fuel economy improves, and ex-
haust emissions decrease. The ECM detects the actual valve timing using signals from the camshaft position
sensor and the crankshaft position sensor. The ECM performs feedback control and verifies target valve
timing.
DTC No.DTC Detection ConditionTrouble Area
P0010Open or short in OCV circuit
SOpen or short in OCV circuit
SOCV
SECM
05CDY−02

A59779
C2
Camshaft Timing Oil
Control Valve1
2 ECM
W −G
OC1+
15
Y −B
OC1−
E11
16
E11
05 −42
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
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, 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 PERFORM ACTIVE TEST BY HAND −HELD TESTER(OPERATE OCV)
(a) Connect the hand −held tester to the DLC3.
(b) Start the engine and warm it up.
(c) Turn the ignition switch to ON and turn the hand −held tester ON.
(d) Select the item: DIAGNOSIS / OBD/MOBD / ACTIVE TEST / VVT CTRL B1.
(e) Using the hand −held tester, operate the OCV and check the engine speed.
Standard:
Tester OperationSpecified Condition
OCV is OFFNormal engine speed
OCV is ONRough idle or engine stall
OK CHECK FOR INTERMITTENT PROBLEMS (See Page 05 −7)
NG
2 INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY(OCV) (See page 10− 2)
NG REPLACE CAMSHAFT TIMING OIL CONTROL
VALVE ASSY
OK

A67528
OCV Signal Waveform1 msec./Division 5V/
Division
GND E11
OC1 +OC1
−
A54386
Wire Harness Side:
C2
Camshaft Timing Oil Control Valve
Connector
Front View
A81698ECM ConnectorE11
OC1+
OC1 −
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −43
AVENSIS Supplement (RM1045E)
3 INSPECT ECM(OCV SIGNAL)
(a) Inspect using an oscilloscope.
(b) During idling, check the waveform between the specified
terminals of the E11 ECM connectors.
Standard:
Tester ConnectionSpecified Condition
OC1+ (E11 −16) − OC1 − (E11 −15)Correct waveform is as shown
NG REPLACE ECM (See page 10 − 65 of Pub. No.
RM 1018E AVENSIS)
OK
4 CHECK HARNESS AND CONNECTOR(ECM − OCV)
(a) Disconnect the C2 OCV connector.
(b) Disconnect the E11 ECM connector.
(c) Check the resistance between the wire harness side con-
nectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
OCV (C2 −1) − OC1+ (E11 −16)Below 1
OCV (C2 −2) − OC1 − (E11 −15)Below 1

Standard (Check for short):
Tester ConnectionSpecified Condition
OCV (C2 −1) or OC1+ (E11 −16) − Body ground10 k
or higherOCV (C2 −2) or OC1 − (E11 −15) − Body ground10 k
or higher
(d) Reconnect the OCV connector.
(e) Reconnect the ECM connector.
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
CHECK FOR INTERMITTENT PROBLEMS (See Page 05 −7)

05CID−02
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −31
AVENSIS Supplement (RM 1045E)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Parameters listed in the chart may be different than your readings depending on the type of instrument used
and other factors.
During the DTC check, refer to the table below if a malfunction code is displayed. For details about each
code, refer to the page number in the DTC Chart’s left column.
DTC No.
(See Page)Detection ItemTrouble Area*1
CHK ENGMemory
P00 10
(05 −41)Camshaft Position ”A” Actuator
Circuit (Bank 1)SOpen or short in OCV circuit
S OCV
S ECM
ff
P00 11
(05 −44)Camshaft Position ”A” −Timing
Over −Advanced or System Per-
formance (Bank 1)SValve timing
S OCV
S Camshaft timing gear assy
S ECM
ff
P00 12
(05 −41)Camshaft Position ”A” −Timing
Over −Retarded (Bank 1)
SValve timing
S OCV
S Camshaft timing gear assy
S ECM
ff
P00 16
(05 −48)Crankshaft Position −Camshaft
Position Correlation (Bank 1
Sensor A)S Mechanical system (Timing chain has jumped a tooth, chain
stretched)
S ECM
ff
P003 1
(05 −49)Oxygen Sensor Heater Circuit
Low (Bank 1Sensor 1)*7
SOpen or short in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 1Sensor 1)*7
SEFI relay
S EFI No. 2 fuse
S ECMff
P0032
(05 −49)Oxygen Sensor Heater Circuit
High (Bank 1Sensor 1)*7
SOpen or short in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 1Sensor 1)*7
SEFI relay
S ECMff
P0037
(05 −49)Oxygen Sensor Heater Control
Circuit Low (Bank 1Sensor 2) *7
SOpen in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 1Sensor 2) *7
SEFI relay
S EFI No. 2 fuse
S ECMff
P0038
(05 −49)Oxygen Sensor Heater Control
Circuit High (Bank 1Sensor 2) *7
SShort in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 1Sensor 2) *7
SEFI relay
S ECMff
P005 1
(05 −49)Oxygen Sensor Heater Circuit
Low (Bank 2 Sensor 1)*8
SOpen in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 2 Sensor 1)*8
SEFI relay
S EFI No. 2 fuse
S ECMff
P0052
(05 −49)Oxygen Sensor Heater Circuit
High (Bank 2 Sensor 1)*8
SShort in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 2 Sensor 1)*8
SEFI relay
S ECMff
P0057
(05 −49)Oxygen Sensor Heater Control
Circuit Low (Bank 2 Sensor 2) *8
SOpen in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 2 Sensor 2) *8
SEFI relay
S EFI No. 2 fuse
S ECMff
P0058
(05 −49)Oxygen Sensor Heater Control
Circuit High (Bank 2 Sensor 2) *8
SShort in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 2 Sensor 2) *8
SEFI relay
S ECMff

05−32
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
DTC No.
(See Page) Memory
*
1
CHK ENG
Trouble Area
Detection Item
P0 100
(05 −55)Mass or volume Air Flow Circuit
SOpen or short in mass air flow meter circuit
S Mass air flow meter
S ECM
ff
P0 102
(05 −55)Mass or volume Air Flow Circuit
Low Input
SOpen in mass air flow meter circuit
S Short in ground circuit
S Mass air flow meter
S ECM
ff
P0 103
(05 −55)Mass or volume Air Flow Circuit
High Input
SOpen in mass air flow meter circuit (EVG circuit)
S Short in mass air flow meter circuit (+B circuit)
S Mass air flow meter
S ECM
ff
P0 105
(05 −61)Manifold Absolute Pressure/
Barometric Pressure CircuitS Open or short in manifold absolute pressure sensor circuit
S Manifold absolute pressure sensor
S ECM
ff
P0 107
(05 −61)Manifold Absolute Pressure/
Barometric Pressure Circuit Low
InputS Open or short in manifold absolute pressure sensor circuit
S Manifold absolute pressure sensor
S ECM
ff
P0 108
(05 −61)Manifold Absolute Pressure/
Barometric Pressure Circuit High
InputS Open or short in manifold absolute pressure sensor circuit
S Manifold absolute pressure sensor
S ECM
ff
P0 110
(05 −66)Intake Air Temperature Circuit
SOpen or short in intake air temperature sensor circuit
S Intake air temperature sensor (built in mass air flow meter)
S ECM
ff
P0 112
(05 −66)Intake Air Temperature Circuit
Low InputSShort in intake air temperature sensor circuit
S Intake air temperature sensor (built in mass air flow meter)
S ECM
ff
P0 113
(05 −66)Intake Air Temperature Circuit
High InputSOpen in intake air temperature sensor circuit
S Intake air temperature sensor (built in mass air flow meter)
S ECM
ff
P0 115
(05 −70)Engine Coolant Temperature Cir-
cuitSOpen or short in engine coolant temperature sensor circuit
S Engine coolant temperature sensor
S ECM
ff
P0 116
(05 −74)Engine Coolant Temperature Cir-
cuit Range/Performance Prob-
lem
SEngine coolant temperature sensorff
P0 117
(05 −70)Engine Coolant Temperature Cir-
cuit Low InputSShort in engine coolant temperature sensor circuit
S Engine coolant temperature sensor
S ECM
ff
P0 118
(05 −70)Engine Coolant Temperature Cir-
cuit High InputSOpen in engine coolant temperature sensor circuit
S Engine coolant temperature sensor
S ECM
ff
P0 120
(05 −75)Throttle/Pedal Position Sensor/
Switch ”A” CircuitSThrottle position sensor (built in throttle body)
S ECMff
P0 121
(05 −81)Throttle/Pedal Position Sensor/
Switch ”A” Circuit Range/Perfor-
mance Problem
S Throttle position sensor (built in throttle body)ff
P0 122
(05 −75)Throttle/Pedal Position Sensor/
Switch ”A” Circuit Low Input
SThrottle position sensor (built in throttle body)
S Short in VTA 1circuit
S Open in VC circuit
S ECM
ff
P0 123
(05 −75)Throttle/Pedal Position Sensor/
Switch ”A” Circuit High Input
SThrottle position sensor (built in throttle body)
S Open in VTA 1circuit
S Open in E2 circuit
S VC and VTA 1circuit are short −circuited
S ECM
ff

−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −33
AVENSIS Supplement (RM 1045E)
DTC No.
(See Page) Memory
*
1
CHK ENG
Trouble Area
Detection Item
P0 130 *3
(05 −82)
Oxygen Sensor Circuit (Bank 1
Sensor 1)*7
SOpen or short in heated oxygen sensor circuit
S Heated oxygen sensor (Bank 1Sensor 1)*7
SHeated oxygen sensor heater (Bank 1Sensor 1)*7
SEFI relay
S Air induction system
S Fuel pressure
S Injector
S ECMff
P0 133 *3
(05 −94)
Oxygen Sensor Circuit Slow Re-
sponse (Bank 1Sensor 1)*7
SOpen or short in heated oxygen sensor circuit
S Heated oxygen sensor (Bank 1Sensor 1)*7
SHeated oxygen sensor heater (Bank 1Sensor 1)*7
SEFI relay
S Air induction system
S Fuel pressure
S Injector
S ECMff
P0 134
(05 −1 01)Oxygen Sensor Circuit No Activ-
ity Detected
(Bank 1Sensor 1)*
7
SOpen or short in heated oxygen sensor circuit
S Heated oxygen sensor (Bank 1Sensor 1)*7
SHeated oxygen sensor heater (Bank 1Sensor 1)*7
SEFI 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
ff
P0 136 *3
(05 −1 09)
Oxygen Sensor Circuit Malfunc-
tion (Bank 1Sensor 2) *7
SOpen or short in heated oxygen sensor circuit
S Heated oxygen sensor (Bank 1Sensor 2) *7
SHeated oxygen sensor heater (Bank 1Sensor 2) *7
SEFI relay
ff
P0 150 *3
(05 −82)
Oxygen Sensor Circuit (Bank 2
Sensor 1)*8
SOpen or short in heated oxygen sensor circuit
S Heated oxygen sensor (Bank 2 Sensor 1)*8
SHeated oxygen sensor heater (Bank 2 Sensor 1)*8
SEFI relay
S Air induction system
S Fuel pressure
S Injector
S ECMff
P0 153 *3
(05 −94)
Oxygen Sensor Circuit Slow Re-
sponse (Bank 2 Sensor 1)*8
SOpen or short in heated oxygen sensor circuit
S Heated oxygen sensor (Bank 2 Sensor 1)*8
SHeated oxygen sensor heater (Bank 2 Sensor 1)*8
SEFI relay
S Air induction system
S Fuel pressure
S Injector
S ECMff
P0 154
(05 −1 01)Oxygen Sensor Circuit No Activ-
ity Detected
(Bank 2 Sensor 1)*
8
SOpen or short in heated oxygen sensor circuit
S Heated oxygen sensor (Bank 2 Sensor 1)*8
SHeated oxygen sensor heater (Bank 2 Sensor 1)*8
SEFI 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
ff