2005 TOYOTA AVENSIS Circuit

A54396
Wire Harness Side:+B (+)
A6
Front View
Mass Air Flow Meter Connector
A66053
Engine Room R/B No. 4:
EFI Relay
A76903
EVG
E13ECM Connector
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −59
AVENSIS Supplement (RM 1045E)
5 CHECK HARNESS AND CONNECTOR(MASS AIR FLOW METER − EFI RELAY)
(a) Inspect the EFI No. 2 fuse.
(1 ) Remove the EFI No. 2 fuse from the engine room
R/B No. 4.
(2) Check for continuity in the EFI No. 2 fuse.
Standard: Continuity
(3) Reinstall EFI No. 2 fuse.
(b) Remove the EFI relay from the engine room R/B No. 4.
(c) Disconnect the A6 mass air flow meter connector.
(d) Measure the resistance between the wire harness side connectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
+B (A6 −1 )− Engine room R/B No. 4 (EFI relay terminal 3)Below 1

Standard (Check for short):
Tester ConnectionSpecified Condition
+B (A6 −1 ) or Engine room R/B No. 4 (EFI relay terminal 3) −
Body ground1 0k
or higher
(e) Reconnect the mass air flow meter connector.
(f) Reinstall the EFI relay.
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
CHECK FOR ECM POWER SOURCE CIRCUIT (See Page 05 −236)
6 INSPECT ECM(SENSOR GROUND)
(a) Measure the resistance between the terminal of the E 13
ECM connector and body ground.
Standard:
Tester ConnectionSpecified Condition
EVG (E 13 − 29) −Body groundBelow 1

NG REPLACE ECM (See page 10 − 65 of Pub. No.
RM 1018E AVENSIS)
OK

− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−49
AVENSIS Supplement (RM1045E)
DTC P0031OXYGEN SENSOR HEATER CONTROL
CIRCUIT LOW (BANK1SENSOR1)
DTC P0032 OXYGEN SENSOR HEATER CONTROL
CIRCUIT HIGH (BANK1SENSOR1)
DTC P0037 OXYGEN SENSOR HEATER CONTROL
CIRCUIT LOW (BANK1SENSOR 2)
DTC P0038 OXYGEN SENSOR HEATER CONTROL
CIRCUIT HIGH (BANK1SENSOR 2)
DTC P0051OXYGEN SENSOR HEATER CONTROL
CIRCUIT LOW (BANK 2 SENSOR1)
DTC P0052 OXYGEN SENSOR HEATER CONTROL
CIRCUIT HIGH (BANK 2 SENSOR1)
DTC P0057 OXYGEN SENSOR HEATER CONTROL
CIRCUIT LOW (BANK 2 SENSOR 2)
DTC P0058 OXYGEN SENSOR HEATER CONTROL
CIRCUIT HIGH (BANK 2 SENSOR 2)
HINT:
SBank1refers to the No.1and No. 4 cylinders.
SBank 2 refers to the No. 2 and No. 3 cylinders.
SSensor1refers to the sensor closest to the engine assembly.
SSensor 2 refers to the sensor farthest away from the engine assembly.
05HI5−01

A72920
Reference (Bank1 Sensor 1 System Drawing)
Heated Oxygen Sensor
EFI Relay
Heater
SensorOX1A
HT
1A
Duty
Control
ECM
From
Battery EFI Fuse
E2
EFI No. 2
Fuse
MREL
OX HT
E 1
+B
05
−50
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
CIRCUIT DESCRIPTION
Refer to DTC P0 130 on page 05 −82.
HINT:
The ECM provides a pulse width modulated control circuit to adjust current through the heater. The heated
oxygen sensor heater circuit uses a relay on the B+ side of the circuit.
DTC No.DTC Detection ConditionTrouble Area
P003 1
P0037
P005 1
P0057( 1 ) Heated current is 0.2 A or less when heater operates with
+B voltage between 10.5 V and 11 .5 V ( 1 trip detection logic)
(2) Heated current is 0.25 A or less when heater operates with
+B greater than 11 .5 V ( 1 trip detection logic)S Open in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater
S EFI relay
S EFI No. 2 fuse
S ECM
P0032
P0038
P0052
P0058
When heater operates, heater current exceeds 2 A
(1 trip detection logic)
S Short in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater
S EFI relay
S ECM
WIRING DIAGRAM
Refer to DTC P0 130 on page 05 −82.
INSPECTION PROCEDURE
HINT:
SIf different DTCs related to different systems that have terminal E2 as the ground terminal are output
simultaneously, terminal E2 may have an open circuit.
SRead 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.

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

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