coolant TOYOTA AVENSIS 2005 Service Owner's Guide

A75766
ECM
Engine Coolant
Temperature Sensor
A75744
ECM
Engine Coolant
Temperature Sensor
A65743ECM Connector
E13
05±202
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
4READ VALUE OF HAND±HELD TESTER(CHECK FOR SHORT IN WIRE HARNESS)
(a)Disconnect the engine coolant temperature sensor con- nector.
(b)Turn the ignition switch ON.
(c)Select the item ºDIAGNOSIS / OBD/MOBD / DATA LIST / ALL / COOLANT TEMPº and read its value displayed on
the hand±held tester.
Temperature value: ±40
C (±40
F)
OKREPLACE ENGINE COOLANT TEMPERATURE SENSOR
NG
5READ VALUE OF HAND±HELD TESTER(CHECK FOR SHORT IN ECM)
(a)Disconnect the E13 ECM connector.
(b)Disconnect the engine coolant temperature sensor con- nector.
(c)Turn the ignition switch ON.
(d)Select the item ºDIAGNOSIS / OBD/MOBD / DATA LIST / ALL / COOLANT TEMPº and read its value displayed on
the hand±held tester.
Temperature: ±40
C (±40
F)
OKREPAIR OR REPLACE HARNESS OR CONNECTOR
NG
CHECK AND REPLACE ECM (See page 01±32)

A18294
THWE2
ECM Connector
E13
A65743
THWE2
ECM Connector
E13
A76786
Wire Harness Side
E2Engine Coolant Temperature
Sensor Connector
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
05±203
AVENSIS REPAIR MANUAL (RM1018E)
When not using hand±held tester:
1INSPECT ECM(THW VOLTAGE)
(a)Turn the ignition switch ON.
(b)Measure the voltage between terminals THW and E2 of
the ECM connector.
Voltage:
Intake air temp.Voltage
20
C (68
F)0.5 to 3.4 V
60
C (140
F)0.2 to 1.0 V
OKCHECK FOR INTERMITTENT PROBLEMS
(See page 05±149)
NG
2INSPECT ENGINE COOLANT TEMPERATURE SENSOR (See page 10±20)
NGREPLACE ENGINE COOLANT TEMPERATURE SENSOR
OK
3CHECK HARNESS AND CONNECTOR(ECM ± EFI WATER TEMP. SENSOR)
(a)Disconnect the E13 ECM connector.
(b)Disconnect the engine coolant temperature sensor con- nector.
(c)Check for continuity between the wire harness side con- nector.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
THW (E13±19) ± Engine coolant temperature sensor (E2±2)ContinuityE2 (E13±28) ± Engine coolant temperature sensor (E2±1)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
THW (E13±19) or Engine coolant temperature sensor (E2±2)
± Body groundContinuity
MGREPAIR OR REPLACE HARNESS ORCONNECTOR
OK
CHECK AND REPLACE ECM (See page 01±32)

A71007
MassAir 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 (1AZ±FE)
05±169
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0010/39 CAMSHAFT POSITION ºAº ACTUATOR
CIRCUIT (BANK 1)
CIRCUIT DESCRIPTION
The VVT system controls the intake camshaft to provide the optimal valve timing for every driving condition. This control
is performed based on the signals, such conditions as intake air volume, throttle position and engine coolant tempera-
ture.
The ECM controls the oil control valve (OCV), based on the signals output from the sensors. The VVT controller regu-
lates the intake camshaft angle using oil pressure through the oil control valve (OCV). As result, the relative position
between the camshaft and the crankshaft becomes optimal, and the engine torque improves, fuel economy improves,
exhaust emissions decrease under overall driving conditions. Also, the ECM detects the actual valve timing using the
signals from the camshaft position sensor and the crankshaft position sensor, and performs feedback control. This is
how target valve timing is achieved by the ECM.
DTC No.DTC Detection ConditionTrouble Area
P0010/39Open or short in oil control valve (OCV) circuit

Open or short in oil control valve circuit

Oil control valve

ECM
05C6R±01

05CDV±01
A76858
Ignition Coil Assy
Camshaft Position Sensor VSV for EVAP
Combination Meter
DLC3
VSV for Intake Air Control ValveFuel Pump ECM
Knock Sensor Camshaft Timing Oil Control Valve
(OCV)
Injector
Crankshaft Position
Sensor
Park/Neutral Position Switch
(Only for A/T Models)Engine Coolant
Temperature Sensor
Mass Air Flow Meter
Throttle Body Assy
Accelerator Pedal Assy
Heated Oxygen Sensor
(Bank 2 Sensor 2)
Circuit Opening Relay
Heated Oxygen Sensor
(Bank 1 Sensor 2)
Heated Oxygen Sensor
(Bank 2 Sensor 1)
Heated Oxygen Sensor
(Bank 1 Sensor 1)
Manifold Absolute Pressure Sensor
Fuel Pump (For High Pressure)
Engine Room R/B No. 1Engine Room R/B No. 4Injector Driver (EDU)
Brake Booster
Pressure Sensor
Fuel Pressure Sensor
(For Low Pressure)
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±317
AVENSIS REPAIR MANUAL (RM1018E)
LOCATION

05±310
±
DIAGNOSTICS SFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E) 


\f  
*
1
CHK ENG
 
 \b
P0110
(05±347)Intake Air Temperature Circuit

Open or short in intake air temperature sensor circuit

Intake air temperature sensor (built in mass air flow meter)

ECM

P0112
(05±347)Intake Air Temperature Circuit
Low Input
Short in intake air temperature sensor circuit

Intake air temperature sensor (built in mass air flow meter)

ECM

P0113
(05±347)Intake Air Temperature Circuit
High Input
Open in intake air temperature sensor circuit

Intake air temperature sensor (built in mass air flow meter)

ECM

P0115
(05±351)Engine Coolant Temperature Cir-
cuit
Open or short in engine coolant temperature sensor circuit

Engine coolant temperature sensor

ECM

P0116
(05±355)Engine Coolant Temperature Cir-
cuit Range/Performance Prob-
lem
Cooling system

Engine coolant temperature sensor

Thermostat

P0117
(05±351)Engine Coolant Temperature Cir-
cuit Low Input
Short in engine coolant temperature sensor circuit

Engine coolant temperature sensor

ECM

P0118
(05±351)Engine Coolant Temperature Cir-
cuit High Input
Open in engine coolant temperature sensor circuit

Engine coolant temperature sensor

ECM

P0120
(05±356)Throttle/Pedal Position Sensor/
Switch ºAº Circuit
Throttle position sensor (built in throttle body)

ECM
P0121
(05±362)Throttle/Pedal Position Sensor/
Switch ºAº Circuit Range/Perfor-
mance Problem

Throttle position sensor (built in throttle body)
P0122
(05±356)Throttle/Pedal Position Sensor/
Switch ºAº Circuit Low Input

Throttle position sensor (built in throttle body)

VTA1 circuit short

VC circuit open

ECM

P0123
(05±356)Throttle/Pedal Position Sensor/
Switch ºAº Circuit High Input

Throttle position sensor (built in throttle body)

VTA1 circuit open

E2 circuit open

VC and VTA1 circuit are short±circuited

ECM

P0130 *3
(05±363)
Oxygen Sensor Circuit (Bank 1
Sensor 1)

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Heated oxygen sensor heater

EFI relay

Air induction system

Fuel pressure

Injector

ECM

P0133 *3
(05±374)
Oxygen Sensor Circuit Slow Re-
sponse (Bank 1 Sensor 1)

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Heated oxygen sensor heater

EFI relay

Air induction system

Fuel pressure

Injector

ECM


±
DIAGNOSTICS SFI SYSTEM (1AZ±FSE)
05±311
AVENSIS REPAIR MANUAL (RM1018E)


\f  
*
1
CHK ENG
 
 \b
P0134
(05±381)Oxygen Sensor Circuit No Activ-
ity Detected (Bank 1 Sensor 1)

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Heated oxygen sensor heater

EFI relay

Air induction system

Fuel pressure

Injector

Gas leakage in exhaust system

PCV valve and hose

PCV hose connection

ECM

P0136 *3
(05±388)
Oxygen Sensor Circuit Malfunc-
tion (Bank 1 Sensor 2)

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Heated oxygen sensor heater

EFI relay

P0150 *3
(05±363)
Oxygen Sensor Circuit (Bank 2
Sensor 1)
Same as DTC No. P0130
P0153 *3
(05±374)
Oxygen Sensor Circuit Slow Re-
sponse (Bank 2 Sensor 1)
Same as DTC No. P0133
P0154
(05±381)Oxygen Sensor Circuit No Activ-
ity Detected (Bank 2 Sensor 1)
Same as DTC No. P0134
P0156 *3
(05±388)
Oxygen Sensor Circuit Malfunc-
tion (Bank 2 Sensor 2)
Same as DTC No. P0136
P0171 *3
(05±394)System too Lean (Bank 1)

Air induction system

Injector blockage

Mass air flow meter

Manifold absolute pressure sensor

Engine coolant temperature sensor

Fuel pressure

Gas leakage in exhaust system

Open or short in heated oxygen sensor (bank 1 sensor 1)
circuit

Heated oxygen sensor (bank 1 sensor 1)

Heated oxygen sensor heater (bank 1 sensor 1)

EFI relay

PCV valve and hose

PCV hose connection

ECM

P0172 *3
(05±394)System too Rich (Bank 1)

Injector leak, blockage

Mass air flow meter

Manifold absolute pressure sensor

Engine coolant temperature sensor

Ignition system

Fuel pressure

Gas leakage in exhaust system

Open or short in heated oxygen sensor (bank 1 sensor 1)
circuit

Heated oxygen sensor (bank 1 sensor 1)

ECM


05±312
±
DIAGNOSTICS SFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E) 


\f  
*
1
CHK ENG
 
 \b
P0174 *3
(05±394)System too Lean (Bank2)

Air induction system

Injector blockage

Mass air flow meter

Manifold absolute pressure sensor

Engine coolant temperature sensor

Fuel pressure

Gas leakage in exhaust system

Open or short in heated oxygen sensor (bank 2 sensor 1)
circuit

Heated oxygen sensor (bank 2 sensor 1)

Heated oxygen sensor heater (bank 2 sensor 1)

EFI relay

PCV valve and hose

PCV hose connection

ECM

P0175 *3
(05±394)System too Rich (Bank2)

Injector leak, blockage

Mass air flow meter

Manifold absolute pressure sensor

Engine coolant temperature sensor

Ignition system

Fuel pressure

Gas leakage in exhaust system

Open or short in heated oxygen sensor (bank 2 sensor 1)
circuit

Heated oxygen sensor (bank 2 sensor 1)

ECM

P0190
(05±406)Fuel Rail Pressure Sensor Cir-
cuit
Open or short in fuel pressure sensor circuit

Fuel pressure sensor

ECM

P0191
(05±410)Fuel Rail Pressure Sensor Cir-
cuit Range/Performance

Open or short in high±pressure fuel pump (spill valve) circuit

High±pressure fuel pump

Low±pressure fuel pump

Fuel pipe

Fuel relief valve

Fuel pressure regulator

ECM

P0200
(05±415)Injector Circuit/Open
P0201
(05±415)Injector Circuit/Open ±
(Cylinder 1)

Open or short in EDU circuit
P0202
(05±415)Injector Circuit/Open ±
(Cylinder 2)

Oen or short in EDU circuit

EDU (Injector driver)

Fuel injector assy
P0203
(05±415)Injector Circuit/Open ±
(Cylinder 3)
jy

ECM
P0204
(05±415)Injector Circuit/Open ±
(Cylinder 4)
P0220
(05±356)Throttle/Pedal Position Sensor/
Switch ºBº Circuit
Throttle position sensor (built in throttle body)

ECM
P0222
(05±356)Throttle/Pedal Position Sensor/
Switch ºBº Circuit Low Input

Throttle position sensor (built in throttle body)

VTA2 circuit short

VC circuit open

ECM

P0223
(05±356)Throttle/Pedal Position Sensor/
Switch ºBº Circuit High Input

Throttle position sensor (built in throttle body)

VTA2 circuit open

E2 circuit open

VC and VTA2 circuit are short±circuited

ECM


±
DIAGNOSTICS SFI SYSTEM (1AZ±FSE)
05±313
AVENSIS REPAIR MANUAL (RM1018E)


\f  
*
1
CHK ENG
 
 \b
P0300 *3
(05±420)
Random/Multiple Cylinder Misfire
Detected
Open or short in engine wire

Connector connection


Vacuum hose connection
*2
P0301 *3
(05±420)Cylinder 1 Misfire Detected

Vacuum hose connection

Ignition system

Injector

Fuelpressure
*2
P0302 *3
(05±420)Cylinder 2 Misfire Detected

Fuel pressure

Mass air flow meter

Engine coolant temperature sensor

Compressionpressure
*2
P0303 *3
(05±420)Cylinder 3 Misfire Detected

Compression pressure

Valve clearance

Valve timing
PCV h ti
*2
P0304 *3
(05±420)Cylinder 4 Misfire Detected

PCV hose connection

PCV hose

ECM
*2
P0325
(05±429)Knock Sensor 1 Circuit (Bank 1
or Single Sensor)
Knock sensor

Knock sensor (under±torqued or loose)

ECM

P0327
(05±429)Knock Sensor 1 Circuit Low In-
put (Bank 1 or Single Sensor)
Short in knock sensor circuit

Knock sensor

ECM

P0328
(05±429)Knock Sensor 1 Circuit High In-
put (Bank 1 or Single Sensor)
Open in knock sensor circuit

Knock sensor

ECM

P0335
(05±433)Crankshaft Position Sensor ºAº
Circuit
Open or short in crankshaft position sensor circuit

Crankshaft position sensor
P0339
(05±433)Crankshaft Position Sensor ºAº
Circuit Intermittent
Crankshaft osition sensor

Signal plate (crankshaft position sensor plate No. 1)

ECM

P0340
(05±436)Camshaft Position Sensor ºAº
Circuit (Bank 1 or Single Sensor)
Open or short in camshaft position sensor circuit

Camshaft position sensor
P0341
(05±436)Camshaft Position Sensor ºAº
Circuit Range/Performance
(Bank 1 or Single Sensor)
Camshaft osition sensor

Camshaft timing gear

Timing chain has jumped a tooth

ECM

P0351
(05±439)Ignition Coil ºAº Primary/Sec-
ondary Circuit

Ignition system

P0352
(05±439)Ignition Coil ºBº Primary/Sec-
ondary Circuit
Ignition system

Open or short in IGF and IGT circuit from ignition coil with
igniter to ECM (ignition coil circuit 1 through 4)
P0353
(05±439)Ignition Coil ºCº Primary/Sec-
ondary Circuit
igniter to ECM (ignition coil circuit 1 through 4)

Ignition coil with igniter (ignition coil 1 through 4)

IG2 relay
P0354
(05±439)Ignition Coil ºDº Primary/Sec-
ondary Circuit
ECM
P0420 *3
(05±446)
Catalyst System Efficiency Be-
low Threshold (Bank 1)
Gas leakage in exhaust system

Heated oxygen sensor

P0430 *3
(05±446)
Catalyst System Efficiency Be-
low Threshold (Bank 2)
Heated oxygen sensor

Three±way catalytic converter (inside exhaust manifold)

P0443
(05±449)Evaporative Emission Control
System Purge Control Valve Cir-
cuit
Open of short in VSV circuit for EVAP

VSV for EVAP

ECM

P0500
(05±453)Vehicle Speed Sensor ºAº

Combination meter

Open or short in speed sensor circuit

Vehicle speed sensor

ECM

Skid control ECU

Clutch or brake slips or gear is broken

P0504
(05±455)Brake Switch Correlation

Short in stop light switch signal circuit

Stop light switch

ECM



FI2547
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±295
AVENSIS REPAIR MANUAL (RM1018E)

* 2 trip detection logic
When a logic malfunction is first detected, the mal-
function is temporally stored in the ECM memory
(1st trip). If the same malfunction is detected again
during the second drive test, this second detection
causes the CHK ENG to illuminate (2nd trip) (How-
ever, the ignition switch must be turned OFF be-
tween the 1st trip and 2nd trip).

Freeze frame data:
Freeze frame data records the engine condition
when a misfire (DTCs P0300 ± P0304) or fuel trim
malfunction (DTCs P0171, P0172, P0174 and
P0175) or other malfunction (first malfunction only)
is detected.
Because freeze frame data records the engine
conditions (fuel system, calculated load, engine
coolant temperature, fuel trim, engine speed, ve-
hicle speed, etc.) when the malfunction is detected.
When troubleshooting, it is useful for determining
whether the vehicle was running or stopped, the en-
gine warmed up or not, the air±fuel ratio lean or rich,
etc. at the time of the malfunction.

Priorities for troubleshooting:
If troubleshooting priorities for multiple DTCs are
given in the applicable DTC chart, these should be
followed.
If no instructions are given, troubleshoot according to the fol-
lowing priorities.
(1) DTCs other than fuel trim malfunction (DTCs
P0171, P0172, P0174 and P0175) and misfire
(DTCs P0300 ± P0304).
(2) Fuel trim malfunction (DTCs P0171, P0172, P0174
and P0175).
(3) Misfire (DTCs P0300 ± P0304).
(b) Description for M±OBD (Except European spec.)

When troubleshoot Multiplex OBD (M±OBD) ve-
hicles, the only difference from the usual trouble-
shooting procedure is that you connect the hand±
held tester to the vehicle, and read off various data
output from the vehicle's ECM.

05±300
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
4. FAIL±SAFE CHART
If any of the following codes is recorded, the ECM enters into the fail±safe mode.
DTC No.Fail±Safe OperationFail±Safe Deactivation Conditions
P0031
P0032
P0037
P0038
P0051
P0052
P0057
P0058
Faulty heater circuit is turned off.Ignition switch is OFF.
P0100
P0102
P0103Ignition timing is calculated based on an engine speed and
a throttle opening angle.ºPassº detection has occurred. Upon this occurrence, the
ECM will return to normal mode.
P0105
P0107
P0108
Intake air pressure is controlled with a calculated value in
proportion to the throttle opening angle and the engine
speed.

Limit the engine speed to 3,000 rpm or less.
ºPassº detection has occurred. Upon this occurrence, the
ECM will return to normal mode.
P0110
P0112
P0113
Intake air temperature is fixed at 20 C (68 F)ºPassº detection has occurred. Upon this occurrence, the
ECM will return to normal mode.
P0115
P0117
P0118
Engine coolant temperature is fixed at 80   ºPassº detection has occurred. Upon this occurrence, the
ECM will return to normal mode.
P0120
P0121
P0122
P0123
P0220
P0222
P0223
P2135
Turn off the power for the throttle motor, return the throttle
valve in position using the return spring, and fuel cut inter-
mittent.Repeat the following conditions at least 2 seconds or more
with the throttle position switch closed:

VTA is more than 0.1 V but less than 0.95 V

Engine speed is 0 km/h
P0190
P0191
Stop the high±pressure pump operation.

Limit the engine speed to 2,000 rpm or less.After it is returned to normal condition, turn the ignition switch
ON.
P0200Turn off the INJ relay and cut the power for the EDU.
P0201
P0202
P0203
P0204
Stop fuel injection for an abnormal cylinder and related
other cylinders.

Limit the engine speed to 3,000 rpm or less.After it is returned to normal condition, turn the ignition switch
ON.
P0325
P0327
P0328
Maximum timing retardationIgnition switch is OFF.
P0351
P0352
P0353
P0354
Stop fuel injection for all the cylinders.ºPassº detection has occurred. Upon this occurrence, the
ECM will return to normal mode.
P0604
P0606
P0607
P0657Turn off the power for the throttle motor, return the throttle
valve in position using the return spring, and fuel cut inter-
mittent.After it is returned to normal condition, turn the ignition switch
ON.
P1235
Stop the high±pressure pump operation.

Limit the engine speed to 2,000 rpm or less.After it is returned to normal condition, turn the ignition switch
ON.
P2008Force IACV to close.After it is returned to normal condition, turn the ignition switch
ON.