fuel pump TOYOTA AVENSIS 2005 Service Owner's Manual

A76889
FCECM
IB1 Engine Room
R/B No. 1
Engine Room
J/B No. 1
B±G
FL MAIN
BatteryGR
ECW±B 1AE9 10
32 51
1
3 5
4B 1EFI
EFI
Relay
B±G
F25
Fuel
Pump 4
5
W±B 10 Engine
Room
J/B No. 4 1
24 4
4
4 4A 1C8
Circuit
Opening
Relay B±Y
1
2
1
Engine Room
R/B No. 4
BR B±WB±WB±WB±W
L±BG±Y G±Y GR
B±YGR
MREL E98
IE12
6
IC3
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
05±265
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM

B16200
C8
A18294
FC (+)E1 (±)
ECM Connector
E12E9
05±266
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
When using hand±held tester:
1PERFORM ACTIVE TEST BY HAND±HELD TESTER(OPERATION OF CIRCUIT OPENING RELAY)
(a)Turn the ignition switch ON.
(b)Select the item ºDIAGNOSIS / OBD/MOBD / ACTIVE TEST / FUEL PUMP / SPD\
º.
(c)Perform the active test with the engine stopped.
Result: The circuit opening relay operates.
OKPROCEED TO NEXT CIRCUIT INSPECTIONSHOWN ON PROBLEM SYMPTOMS TABLE
NG
2CHECK ECM POWER SOURCE CIRCUIT (See page 05±257)
NG REPAIR OR REPLACE POWER SOURCE CIRCUIT
OK
3 INSPECT CIRCUIT OPENING RELAY
(a) Remove the circuit opening relay.
(b) Inspect the circuit opening relay. Standard:
Terminal No.Specified condition
1 ± 2Continuity
No Continuity
3 ± 5Continuity
(Apply battery voltage Terminals 1 and 2)
NG REPLACE CIRCUIT OPENING RELAY
OK
4 INSPECT ECM(CHECK VOLTAGE)
(a) Turn the ignition switch ON.
(b) Measure the voltage between the terminals of the E9 and E12 ECM connector.
Standard:
Symbols (Terminal No.)Specified condition
FC (E9±10) ± E1 (E12±7)8 to 14 V
OK Go to step 6
NG

A66053
Engine Room R/B No.4EFI Relay
123
5
A79099
Wire Harness Side
C8
Circuit Opening Relay Connector
A65748
E9
MRELFC
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
05±267
AVENSIS REPAIR MANUAL (RM1018E)
5CHECK HARNESS AND CONNECTOR(EFI RELAY ± CIRCUIT OPENING RELAY,
CIRCUIT OPENING RELAY ± ECM)
(a)Remove the EFI relay from the engine room R/B No.4.
(b)Remove the circuit opening relay.
(c)Disconnect the E9 ECM connector.
(d)Check for continuity between the wire harness side con-
nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
EFI relay (3) ± Circuit opening relay (C8±1)
Circuit opening relay (C8±2) ± FC (E9±10)Continuity
EFI relay (1) ± MREL (E9±8)
y
Standard (Check for short):
Symbols (Terminal No.)Specified condition
EFI relay (3) or Circuit opening relay (C8±1) ± Body ground
Circuit opening relay (C8±2) or FC (E9±10) ± Body groundNo continuity
EFI relay (1) or MREL (E9±8) ± Body ground
y
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
CHECK AND REPLACE ECM (See page 01±32)
6INSPECT FUEL PUMP ASSY (See page 11±22)
NG REPAIR OR REPLACE FUEL PUMP ASSY
OK

123
5
A79099
Wire Harness Side
C8
Circuit Opening Relay Connector
A66276
Fuel Pump Connector
Wire Harness Side
F25
05±268
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
7CHECK HARNESS AND CONNECTOR(CIRCUIT OPENING RELAY ± FUEL PUMP, FUEL PUMP ± BODY GROUND)
(a)Remove the circuit opening relay.
(b)Disconnect the fuel pump connector.
(c)Check for continuity between the wire harness side con-
nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
Circuit opening relay (C8±3) ± Fuel pump (F25±4)ContinuityFuel pump (F25±5) ± Body groundContinuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
Circuit opening relay (C8±3) or Fuel pump (F25±4) ±
Body groundNo continuity
NGREPAIR OR REPLACE HARNESS ORCONNECTOR
OK
CHECK AND REPLACE ECM (See page 01±32)
When not using hand±held tester:
1CHECK OPERATION OF FUEL PUMP (See page 11±19)
OKPROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
NG
2CHECK ECM POWER SOURCE CIRCUIT (See page 05±257)
NG CHECK FOR ECM POWER SOURCE CIRCUIT
OK

A66053
Engine Room R/B No.4EFI Relay
123
5
A79099
Wire Harness Side
C8
Circuit Opening Relay Connector
A65748
E9
MRELFC
05±270
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
5CHECK HARNESS AND CONNECTOR(EFI RELAY ± CIRCUIT OPENING RELAY, CIRCUIT OPENING RELAY ± ECM)
(a)Remove the EFI relay from the engine room R/B No.4.
(b)Remove the circuit opening relay.
(c)Disconnect the E9 ECM connector.
(d)Check for continuity between the wire harness side con-
nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
EFI relay (3) ± Circuit opening relay (C8±1)
Circuit opening relay (C8±2) ± FC (E9±10)Continuity
EFI relay (1) ± MREL (E9±8)
y
Standard (Check for short):
Symbols (Terminal No.)Specified condition
EFI relay (3) or Circuit opening relay (C8±1) ± Body ground
Circuit opening relay (C8±2) or FC (E9±10) ± Body groundNo continuity
EFI relay (1) or MREL (E9±8) ± Body ground
y
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
CHECK AND REPLACE ECM (See page 01±32)
6INSPECT FUEL PUMP ASSY (See page 11±22)
NG REPAIR OR REPLACE FUEL PUMP ASSY
OK

123
5
A79099
Wire Harness Side
C8
Circuit Opening Relay Connector
A66276
Fuel Pump Connector
Wire Harness Side
F25
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
05±271
AVENSIS REPAIR MANUAL (RM1018E)
7CHECK HARNESS AND CONNECTOR(CIRCUIT OPENING RELAY ± FUEL PUMP,
FUEL PUMP ± BODY GROUND)
(a)Remove the circuit opening relay.
(b)Disconnect the fuel pump connector.
(c)Check for continuity between the wire harness side con-
nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
Circuit opening relay (C8±3) ± Fuel pump (F25±4)ContinuityFuel pump (F25±5) ± Body groundContinuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
Circuit opening relay (C8±3) or Fuel pump (F25±4) ±
Body groundNo continuity
NGREPAIR OR REPLACE HARNESS ORCONNECTOR
OK
CHECK AND REPLACE ECM (See page 01±32)

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±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±315
AVENSIS REPAIR MANUAL (RM1018E)


\f  
*
1
CHK ENG
 
 \b
P0746 *3,4
(05±954)
Pressure Control Solenoid ºAº
Performance (Shift Solenoid
Valve SL1)

Electronic controlled automatic transmission (ECT)
P0748 *4
(05±956)
Pressure Control Solenoid ºAº
Electrical (Shift Solenoid Valve
SL1)

Electronic controlled automatic transmission (ECT)
P0766 *3,4
(05±962)
Shift Solenoid ºDº Performance
(Shift Solenoid Valve S4)
Electronic controlled automatic transmission (ECT)
P0776 *3,4
(05±963)
Pressure Control Solenoid ºBº
Performance (Shift Solenoid
Valve SL2)

Electronic controlled automatic transmission (ECT)
P0778 *4
(05±956)
Pressure Control Solenoid ºBº
Electrical (Shift Solenoid Valve
SL2)

Electronic controlled automatic transmission (ECT)
P0793 *4
(05±965)
Intermediate Shaft Speed Sen-
sor ºAº Circuit No Signal
Electronic controlled automatic transmission (ECT)
P0982 *4
(05±956)Shift Solenoid ºDº Control Low
Electronic controlled automatic transmission (ECT)
P0983 *4
(05±956)Shift Solenoid ºDº Control High
Electronic controlled automatic transmission (ECT)
P1235
(05±477)High Pressure Fuel Pump Circuit

Open or short in fuel pump (high pressure)

Fuel pump (high pressure)

ECM

P2008
(05±480)Intake Manifold Runner Control
Circuit/Open (Bank 1)
Open of short in VSV for IACV circuit

VSV for IACV

ECM

P2102
(05±483)Throttle Actuator Control Motor
Circuit Low
Open in throttle control motor circuit

Throttle control motor

ECM

P2103
(05±483)Throttle Actuator Control Motor
Circuit High
Short in throttle control motor circuit

Throttle control motor

ECM

P2111
(05±485)Throttle Actuator Control System
± Stuck Open
Throttle control motor circuit

Throttle control motor
P2112
(05±485)Throttle Actuator Control System
± Stuck Closed
Throttle body

Throttle valve
P2118
(05±487)Actuator Control Motor Current
Range/Performance
Open in ETCS power source circuit

ECM
P2119
(05±490)Throttle Actuator Control Throttle
Body Range/Performance
Electric throttle control system

ECM
P2120
(05±492)Throttle/Pedal Position Sensor/
Switch ºDº Circuit
Open or short in accelerator pedal position sensor circuit

Accelerator pedal position sensor

ECM

P2121
(05±499)Throttle/Pedal Position Sensor/
Switch ºDº Circuit Range/Perfor-
mance
Open or short in accelerator pedal position sensor circuit

Accelerator pedal position sensor

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.