2005 TOYOTA AVENSIS fuel pressure

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DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
05–29
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)DTC No.
(See Page) Memory
*1
MIL
Trouble Area
Detection Item
P0171 *4
( 05–106 )System Too Lean (Bank 1)
Air induction system
 Injector blockage
 Mass air flow meter
 Engine coolant temperature sensor
 Fuel pressure
 Gas leakage in exhaust system
 Open or short in heated oxygen sensor (sensor 1) circuit
 Heated oxygen sensor (sensor 1)
 PCV valve and hose
 PCV hose connection
 ECM

P0172 *4
( 05–106 )System Too Rich (Bank 1)
Injector leakage or blockage
 Mass air flow meter
 Engine coolant temperature sensor
 Ignition system
 Fuel pressure
 Gas leakage in exhaust system
 Open or short in heated oxygen sensor (sensor 1) circuit
 Heated oxygen sensor (sensor 1)
 ECM

P0220
( 05–66 )Throttle/Pedal Position Sensor/
Switch ”B” CircuitThrottle position sensor (built into throttle body)
 ECM
P0222
( 05–66 )Throttle/Pedal Position Sensor/
Switch ”B” Circuit Low Input
Throttle position sensor (built into throttle body)
 Short in VTA2 circuit
 Open in VC circuit
 ECM

P0223
( 05–66 )Throttle/Pedal Position Sensor/
Switch ”B” Circuit High Input
Throttle position sensor (built into throttle body)
 Open in VTA2 circuit
 Open in E2 circuit
 VC and VTA2 circuits are short–circuited
 ECM

P0300 *4
( 05– 118 )Random/Multiple Cylinder Misfire
Detected
Open or short in engine wire harness
 Connector connection
 Vacuum hose connection
 Ignition system
 Injector
 Fuel pressure
 Mass air flow meter
 Engine coolant temperature sensor
 Compression pressure
 Valve clearance
 Valve timing
 PCV hose connection
 PCV hose
 ECM
 *2
P0301 *4
( 05– 118 )Cylinder 1 Misfire DetectedSame as DTC P0300 *2
P0302 *4
( 05– 118 )Cylinder 2 Misfire DetectedSame as DTC P0300 *2
P0303 *4
( 05– 118 )Cylinder 3 Misfire DetectedSame as DTC P0300 *2
P0304 *4
( 05– 118 )Cylinder 4 Misfire DetectedSame as DTC P0300 *2
P0325
( 05–132 )Knock Sensor 1 Circuit (Bank 1
or Single Sensor)Open or short in knock sensor circuit
 Knock sensor (under–torqued or looseness)
 ECM


05–32
–
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E) DTC No.
(See Page) Memory
*1
MIL
Trouble Area
Detection Item
P2111
( 05–177 )Throttle Actuator Control System
– Stuck OpenThrottle actuator
 Throttle body assembly
 Throttle valve

P2112
( 05–177 )Throttle Actuator Control System
– Stuck ClosedSame as DTC P2111
P2118
( 05–179 )Throttle Actuator Control Motor
Current Range/PerformanceOpen in ETCS power source circuit
 ETCS fuse
 ECM

P2119
( 05–182 )Throttle Actuator Control Throttle
Body Range/PerformanceElectronic throttle control system
 ECM
P2120
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”D” CircuitAccelerator pedal position sensor
 ECM
P2121
( 05–192 )Throttle/Pedal Position Sensor/
Switch ”D” Circuit Range/Perfor-
manceAccelerator pedal position sensor circuit
 Accelerator pedal position sensor
 ECM

P2122
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”D” Circuit Low Input
Accelerator pedal position sensor
 Open in VCP1 circuit
 Open or ground short in VPA1 circuit
 ECM

P2123
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”D” Circuit High InputAccelerator pedal position sensor
 Open in EPA circuit
 ECM

P2125
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”E” CircuitAccelerator pedal position sensor
 ECM
P2127
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”E” Circuit Low Input
Accelerator pedal position sensor
 Open in VCP2 circuit
 Open or ground short in VPA2 circuit
 ECM

P2128
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”E” Circuit High InputAccelerator pedal position sensor
 Open in EPA2 circuit
 ECM

P2135
( 05–66 )Throttle/Pedal Position Sensor/
Switch ”A”/”B” Voltage Correla-
tionVTA1 and VTA2 circuits are short–circuited
 Throttle position sensor (built into throttle body)
 ECM

P2138
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”D”/”E” Voltage Correla-
tionVPA1 and VPA2 circuits are short circuited
 Accelerator pedal position sensor
 ECM

P2195 *4
( 05–74 )Oxygen Sensor Signal Stuck
Lean (Bank 1 Sensor 1)
Open or short in heated oxygen sensor circuit
 Heated oxygen sensor (Sensor 1)
 Heated oxygen sensor heater (Sensor 1)
 EFI relay
 Air induction system
 Fuel pressure
 Injector
 ECM

P2196 *4
( 05–74 )Oxygen Sensor Signal Stuck
Rich (Bank 1 Sensor 1)Same as DTC P2195
P2716
( 05–286 )Pressure Control Solenoid ”D”
Electrical (Shift Solenoid SLT)Electronic control automatic transaxle
P2769
( 05–289 )Torque Converter Clutch Sole-
noid Circuit Low (Shift Solenoid
Valve SL)
Electronic control automatic transaxle

+25 %
–12.5 %
More than 0.5 V
Less than 0.4V
Case 1
Case 2
Case 3
Case 4
Output Voltage of Heated Oxygen
Sensor (sensor 1: front sensor)
Injection volume
Output voltage
Output Voltage of Heated Oxygen
Sensor (sensor 2: rear sensor)Main Suspect
Trouble Area
OK
+25 %
–12.5 %
More than 0.5 V
Less than 0.4V
Injection volume
Output voltage
+25 %
–12.5 %
More than 0.5 V
Less than 0.4V
Injection volume
Output voltage
Sensor 1: front sensor
(Sensor 1, heater, sensor 1
circuit)
+25 %
–12.5 %
More than 0.5 V
Less than 0.4V
Injection volume
Output voltage
+25 %
–12.5 %
Injection volume
Output voltage
NG
+25 %
–12.5 %
Injection volume
Output voltage
NG
+25 %
–12.5 %
Injection volume
Output voltage
NG
+25 %
–12.5 %
Injection volume
Output voltage
NGExtremely rich or lean actual
air–fuel ratio
(Injector, fuel pressure, gas
leakage in exhaust system,
etc.) OK
OK
OK
Almost no reaction

Sensor 2: rear sensor
(Sensor 2, heater, sensor 2
circuit)
Almost no reaction Almost no reactionAlmost no reaction
05–154
– DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
The following A/F Control procedure enables the technician to check and graph the voltage output of both
the heated oxygen sensors.
To display the graph, select the following menu items on the tester: View / Line Graph.

A78423
20V
/Division Injector Signal Waveform
20V
/Division
GND
100 msec./Division (Idling)(Magnification)
GND
1 msec./Division (Idling)
Injection Duration
– DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
05–119
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)DTC No.
DTC Detection ConditionTrouble Area
P0300Misfiring of random cylinders is detected
Open or short in engine wire harness
Connector connection
Vacuum hose connection
Ignition system
Injector
Fuel pressure
Mass air flow meter
Engine coolant temperature sensor
Compression pressure
Valve clearance
Valve timing
PCV hose connection
PCV hose
ECM
P0301
P0302
Misfiring of each cylinder is detected
Open or short in engine wire harness
Connector connection
Vacuum hose connection
Ignition system
Injector
Fuel pressure
Mass air flow meter
P0303
P0304Misfiring of each cylinder is detectedEngine coolant temperature sensor
Compression pressure
Valve clearance
Valve timing
PCV hose connection
PCV hose
ECM
HINT:
When the DTCs for misfiring cylinders are recorded repeatedly but no random misfire DTC is recorded, it
indicates that the misfires have been set and recorded at different times.
Reference: Inspection using the oscilloscope
With the engine idling, check the waveform between terminals #10 to #40 and E01 of the ECM connectors.
ItemContents
Terminal#10 to #40 – E01
Equipment Setting20V/Division, 100 or 1 ms/Division
ConditionIdling
HINT:
The correct waveform is as shown.

–
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
05–129
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
11 INSPECT FUEL INJECTOR INJECTION AND INJECTION VOLUME OF MISFIRING CYLINDER (See page 11–8 of Pub. No. RM1018E AVENSIS)
NG REPLACE FUEL INJECTOR ASSY
(See page 11–10 of Pub. No. RM1018E AVENSIS)
OK
12 CHECK CYLINDER COMPRESSION PRESSURE OF MISFIRING CYLINDER (See page 14–1 of Pub. No. RM1018E AVENSIS)
NG REPAIR OR REPLACE
OK
13 CHECK VALVE CLEARANCE OF MISFIRING CYLINDER (See page 14–6 of Pub. No. RM1018E AVENSIS)
NG ADJUST VALVE CLEARANCE
(See page 14–6 of Pub. No. RM1018E AVENSIS)
OK
14 PROCEED TO STEP APPROPRIATE FOR NUMBER OF MISFIRING CYLINDERS(REFER TO RESULT OF STEP 4)
HINT:
If the result of step 4 is ”1 or 2 cylinders”, proceed to A.
If the result of step 4 is ” 3 cylinders or more”, proceed to B.
B CHECK FOR INTERMITTENT PROBLEMS (See page 05–9 )
A
15 CHECK VALVE TIMING(CHECK FOR LOOSENESS AND JUMPED TEETH ON TIMING CHAIN) (See page 14–49 of Pub. No. RM1018E AVENSIS)
OK: The matchmarks of the crankshaft pulley and camshaft pulley are alig\
ned.
NG ADJUST VALVE TIMING (See page 14–49 of Pub.No. RM1018E AVENSIS)
OK

05–130
– DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
16 CHECK FUEL PRESSURE (See page 11–5 of Pub. No. RM1018E AVENSIS)
NG CHECK AND REPLACE FUEL PUMP,
PRESSURE REGULATOR, FUEL PIPE LINE AND
FILTER
OK
17 READ VALUE OF INTELLIGENT TESTER II(INTAKE AIR TEMPERATURE AND
MASS AIR FLOW RATE)
(a) Connect the intelligent tester II to the DLC3.
(b) Turn the ignition switch to ON.
(c) Check the intake air temperature.
(1) On the intelligent tester II, select the following menu items: Powertrain / Engine and ECT / Data
List / Intake Air.
(2) Read the value.
Standard: Equivalent to ambient air temperature.
(d) Check the mass air flow rate.
(1) On the intelligent tester II, select the following menu items: Powertrain / Engine and ECT / Data
List / AFM.
(2) Read the values.
Standard:
ConditionMass Air Flow Rate (gm/s)
Ignition switch ON (do not start engine)0
Idling3.2 to 4.7
Revving up without load (2,500 rpm)13.1 to 18.9
Idling – Revving upMass air flow rate fluctuates
NG REPLACE MASS AIR FLOW METER
OK

05KAK–01
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–209
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
PART AND SYSTEM NAME LIST
This reference list indicates the part names used in this manual along with their definitions.
Part and system nameDefinition
Toyota HCAC system, Hydrocarbon adsorptive Catalyst
(HCAC) system, HC adsorptive three–way catalystHC adsorptive three–way catalytic converter
Variable Valve Timing sensor, VVT sensorCamshaft position sensor
Variable valve timing system, VVT systemCamshaft timing control system
Camshaft timing oil control valve, Oil control valve OCV,
VVT, VSVCamshaft timing oil control valve
Variable timing and lift, VVTLCamshaft timing and lift control
Crankshaft position sensor ”A”Crankshaft position sensor
Engine speed sensorCrankshaft position sensor
THAIntake air temperature
Knock control moduleEngine knock control module
Knock sensorEngine knock sensor
Mass or volume air flow circuitMass air flow sensor circuit
Vacuum sensorManifold air pressure sensor
Internal control module, Control module, Engine control
ECU, PCMPower train control module
FC idleDeceleration fuel cut
Idle air control valveIdle speed control
VSV for CCV, Canister close valve VSV for canister controlEvaporative emissions canister vent valve
VSV for EVAP, Vacuum switching valve assembly No. 1,
EVAP VAV, Purge VSVEvaporative emissions canister purge valve
VSV for pressure switching valve, Bypass VSVEvaporative emission pressure switching valve
Vapor pressure sensor, EVAP pressure sensor, Evaporative
emission control system pressure sensorFuel tank pressure sensor
Charcoal canisterEvaporative emissions canister
ORVR systemOn–boad refueling vapor recovery system
Intake manifold runner controlIntake manifold tuning system
Intake manifold runner valve, IMRV, IACV (runner valve)Intake manifold tuning valve
Intake control VSVIntake manifold tuning solenoid valve
AFSAir fuel ratio sensor
O2 sensorHeater oxygen sensor
Oxygen sensor pumping current circuitOxygen sensor output signal
Oxygen sensor reference ground circuitOxygen sensor signal ground
Accel position sensorAccelerator pedal position sensor
Throttle actuator control motor, Actuator control motor, Elec-
tronic throttle motor, Throttle control motorElectronic throttle actuator
Electronic throttle control system, Throttle actuator control
systemElectronic throttle control system
Throttle/pedal position sensor, Throttle/pedal position switch,
Throttle position sensor/switchThrottle position sensor
Turbo press sensorTurbocharger pressure sensor
Turbo VSVTurbocharger pressure control solenoid valve
P/S pressure switchPower–steering pressure switch
VSV for ACMActive control engine mount
Speed sensor, Vehicle speed sensor ”A”, Speed sensor for
skid control ECUVehicle speed sensor
ATF temperature sensor, Trans. fluid temp. sensor, ATF
temperature sensor ”A”Transmission fluid temperature sensor
Electronic controlled automatic transmission, ECTElectronically controlled automatic
Intermediate shaft speed sensor ”A”Couter gear speed sensor

141UL–01
A93669
A60622
14–32–
ENGINE MECHANICAL CYLINDER HEAD GASKET (1ZZ–FE/3ZZ–FE)(From
February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
REPLACEMENT
1. DISCHARGE FUEL SYSTEM PRESSURE (See Pub. No. RM1018E on page 11–1)
2. REMOVE RADIATOR SUPPORT OPENING COVER (See page 14–9)
3. REMOVE ENGINE ROOM COVER SIDE (See page 14–9)
4. REMOVE FRONT WHEEL RH
5. REMOVE ENGINE UNDER COVER SUB–ASSY NO.1 (See page 14–9)
6. REMOVE ENGINE UNDER COVER RH (See page 14–9)
7. DRAIN ENGINE COOLANT (See page 16–5)
8. REMOVE CYLINDER HEAD COVER NO.2
(a) Remove the 2 nuts and 2 clips, then detach cylinder headcover No.2.
9. REMOVE AIR CLEANER HOSE NO.1
(a) Disconnect the VSV connector.
(b) Disconnect fuel vapor feed No. 1 hose from the VSV.
(c) Disconnect the fuel vapor feed hose from the VSV.
(d) Disconnect the ventilation hose from air cleaner hose No. 1.
(e) Loosen the 2 air cleaner hose clamp bolts, then remove the air cleaner h\
ose.
10. DISCONNECT WATER BY–PASS HOSE
(a) Disconnect the water by–pass hose from the throttle body.
11. DISCONNECT WATER BY–PASS HOSE NO.2
(a) Disconnect water by–pass hose No. 2 from the throttle body.
12. REMOVE EFI FUEL PIPE CLAMP (See Pub. No. RM1018E on page 11–11)
13. DISCONNECT FUEL TUBE SUB–ASSY (See Pub. No. RM1018E on page 11–11)
14. DISCONNECT UNION TO CONNECTOR TUBE HOSE
(a) Disconnect the union to connector tube hose from the hose to hose tube.
15. DISCONNECT RADIATOR HOSE INLET
(a) Disconnect the radiator hose inlet from the cylinder head.
16. DISCONNECT HEATER INLET WATER HOSE
(a) Disconnect the heater inlet water hose from the cylinder head. 17. REMOVE FAN AND GENERATOR V BELT
(a) Turn the V–ribbed belt tensioner clockwise slowly andloosen it. Remove the fan and generator V belt, then put
back the V–ribbed belt tensioner carefully.