TOYOTA AVENSIS 2005 Service Repair Manual

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



05±314
±
DIAGNOSTICS SFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E) 


\f  
*
1
CHK ENG
 
 \b
P0555
(05±459)Brake Booster Pressure Sensor
Circuit

Open or short in brake booster pressure sensor circuit

Brake booster pressure sensor

Vacuum hose

ECM

P0556
(05±462)Brake Booster Pressure Sensor
Circuit Range/Performance

Vacuum hose (between the brake booster and intake manifold,
the brake booster and brake booster pressure sensor, and the
intake manifold and manifold absolute pressure sensor)

Open or short in brake booster pressure sensor circuit

Brake booster pressure sensor

Manifold absolute pressure sensor

Brake booster

Open or short in stop light switch circuit

Stop light switch

ECM

P0557
(05±459)Brake Booster Pressure Sensor
Circuit Low Input
Same as DTC No. P0555
P0558
(05±459)Brake Booster Pressure Sensor
Circuit High Input
Same as DTC No. P0555
P0560
(05±467)System Voltage
Open in back±up power source circuit

ECM
P0571
(05±1711)Brake Switch ºAº Circuit
Cruise control system

P0604
(05±470)Internal Control Module Random
Access Memory (RAM) Error
P0606
(05±470)ECM/PCM Processor
ECM
P0607
(05±470)Control Module Performance
P0617
(05±471)Starter Relay Circuit High

Short in park/neutral position switch (A/T)

Park/neutral position switch (A/T)

Ignition switch

ECM

P0657
(05±470)Actuator Supply Voltage Circuit /
Open
ECM
P0705 *4
(05±474)
Transmission Range Sensor Cir-
cuit Malfunction (PRNDL Input)
Short in park/neutral position switch circuit

Park/neutral position switch

ECM

P0710 *4
(05±941)
Transmission Fluid Temperature
Sensor ºAº circuit
Electronic controlled automatic transmission (ECT)
P0711 *3,4
(05±943)
Transmission Fluid Temperature
Sensor ºAº Performance
Electronic controlled automatic transmission (ECT)
P0712 *4
(05±941)
Transmission Fluid Temperature
Sensor ºAº Circuit Low Input
Electronic controlled automatic transmission (ECT)
P0713 *4
(05±941)
Transmission Fluid Temperature
Sensor ºAº Circuit High Input
Electronic controlled automatic transmission (ECT)
P0717 *4
(05±945)
Input/Turbine Speed Sensor ºAº
Circuit No Signal
Electronic controlled automatic transmission (ECT)
P0724 *4
(05±947)Brake Switch ºBº Circuit High

Short in stop light switch signal circuit

Stop light switch

ECM

P0741 *3,4
(05±948)
Torque Converter Clutch Circuit
Performance or Stuck Off
Electronic controlled automatic transmission (ECT)
P0743 *4
(05±951)
Torque Converter Clutch Circuit
Electrical
Electronic controlled automatic transmission (ECT)

±
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±316
±
DIAGNOSTICS SFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E) 


\f  
*
1
CHK ENG
 
 \b
P2122
(05±492)Throttle/Pedal Position Sensor/
Switch ºDº Circuit Low Input
P2123
(05±492)Throttle/Pedal Position Sensor/
Switch ºDº Circuit High Input
P2125
(05±492)Throttle/Pedal Position Sensor/
Switch ºEº Circuit
Same as DTC No. P2120
P2127
(05±492)Throttle/Pedal Position Sensor/
Switch ºEº Circuit Low Input
P2128
(05±492)Throttle/Pedal Position Sensor/
Switch ºEº Circuit High Input
P2135
(05±356)Throttle Pedal Position Sensor/
Switch ºAº/ºBº Voltage Correla-
tion
VTA1 and VTA2 circuit are short±circuited

Throttle position sensor (built in throttle body)

ECM

P2138
(05±492)Throttle Pedal Position Sensor/
Switch ºDº/ºEº Voltage Correla-
tion

Same as DTC No. P2120
P2195 *3
(05±363)
Oxygen Sensor Signal Stuck
Lean (Bank 1 Sensor 1)
Open or short in heated oxygen sensor (bank 1, 2 sensor 1)
circuit
P2196 *3
(05±363)
Oxygen Sensor Signal Stuck
Rich (Bank 1 Sensor 1)
Heated oxygen sensor (bank 1, 2 sensor 1)

Heated oxygen sensor heater (bank 1, 2 sensor 1)

EFI relay

P2197 *3
(05±363)
Oxygen Sensor Signal Stuck
Lean (Bank 2 Sensor 1)
EFI relay

Air induction system

Fuel pressure

P2198 *3
(05±363)
Oxygen Sensor Signal Stuck
Rich (Bank 2 Sensor 1)

Fuel ressure

Injector

ECM
P2716 *4
(05±967)
Pressure Control Solenoid ºDº
Electrical
Electronic controlled automatic transmission (ECT)
B2799
(05±1625)Engine Immobiliser System Mal-
function
Immobiliser system

*1: CHK ENG (Check engine warning light) is illuminated
*
2: CHK ENG (Check engine warning light) is illuminated or blinks
*
3: For Euro±OBD vehicles only.
*
4: For A/T only.

05CDU±01
FI2547
A76859
Hand±Held Tester
DLC3
05±294
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
PRE±CHECK
1.DIAGNOSIS SYSTEM
(a)Description for Euro±OBD (European spec.)

When troubleshooting Euro±OBD vehicles, the
only difference from the usual troubleshooting pro-
cedure is that you connect an OBD scan tool com-
plying with ISO 15031±4 or a hand±held tester to
the vehicle, and read off various data output from
the vehicle's ECM.

Euro±OBD regulations require that the vehicle's
on±board computer illuminates the check engine
warning light (CHK ENG) on the instrument panel
when the computer detects a malfunction in the
emission control system / components or in the
powertrain control components which affect ve-
hicle emissions, or a malfunction in the computer. In
addition to an illumination of the CHK ENG when a
malfunction is detected, the applicable Diagnostic
Trouble Codes (DTCs) prescribed by ISO 15031±4
are recorded in the ECM memory (See page
05±309). If the malfunction does not reoccur in 3
consecutive trips, the CHK ENG goes off automati-
cally but the DTCs remain recorded in the ECM
memory.

To check the DTCs, connect the OBD scan tool or
hand±held tester to Data Link Connector 3 (DLC3)
on the vehicle. The OBD scan tool or hand±held
tester also enables you to erase the DTCs and
check freeze frame data and various forms of en-
gine data. (For operating instructions, see the OBD
scan tool's instruction book.)
DTCs include ISO controlled codes and manufac-
turer controlled codes. ISO controlled codes must
be set as prescribed by the ISO, while manufacturer
controlled codes can be set freely by the manufac-
turer within the prescribed limits (See DTC chart on
page 05±309).

The diagnosis system operates in the normal mode
during normal vehicle use. It also has a check (test)
mode for technicians to simulate malfunction symp-
toms and troubleshoot. Most DTCs use 2 trip detec-
tion logic* to prevent erroneous detection, and to
ensure a thorough malfunction detection. By
switching the ECM to the check (test) mode using
hand±held tester when troubleshooting, a techni-
cian can cause the CHK ENG to illuminate for a mal-
function that is only detected once or momentarily
(Hand±held tester only) (See step 3).

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.

A76859
Hand±Held Tester
DLC3
05±296
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)

The vehicle's on±board computer illuminates the
check engine warning light (CHK ENG) on the
instrument panel when the computer detects a mal-
function in the computer itself or in drive system
components. In addition to an illumination of the
CHK ENG when a malfunction is detected, the ap-
plicable Diagnostic Trouble Codes (DTCs) are re-
corded in the ECM memory (See page 05±309). If
the malfunction does not recur, the CHK ENG lamp
will be disappeared by turning off the ignition switch
but the recorded DTC will be remaining in the ECM
memory.

To check the DTCs, connect the hand±held tester
to the Data Link Connector 3 (DLC3) on the vehicle.
The hand±held tester also enables you to erase the
DTCs and check the freeze frame data and various
forms of engine data. (for operating instructions,
see the instruction book.)

The diagnosis system operates in the normal mode
during normal vehicle use. It also has a check (test)
mode for technicians to simulate malfunction symp-
toms and troubleshoot. Most DTCs use 2 trip detec-
tion logic* to prevent erroneous detection, and to
ensure a thorough malfunction detection. By
switching the ECM to the check (test) mode using
hand±held tester when troubleshooting, a techni-
cian can cause the CHK ENG to illuminate for a mal-
function that is only detected once or momentarily
(Hand±held tester only) (See step 3).

* 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 conditions
(fuel system, calculator load, water temperature,
fuel trim, engine speed, vehicle speed, etc.) when
a malfunction is detected. When troubleshooting, it
is useful for determining whether the vehicle was
running or stopped, the engine was warmed up or
not, the air±fuel ratio was lean or rich, etc. at the
time of the malfunction.

3 2 1 45678
9 1 0 111 21 31 41 51 6
DLC33 2 1 45678
9 1 0 111 21 31 41 51 6
DLC3
A04550
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±297
AVENSIS REPAIR MANUAL (RM1018E)
(c) Check the DLC3.
The vehicle's ECM uses the ISO 9141±2 (Euro±OBD)/
ISO 14230(M±OBD) communication protocol. The termi-
nal arrangement of the DLC3 complies with ISO
15031±03 and matches the ISO 9141±2/ ISO 14230 for-
mat.
SymbolTerminal No.Connection/Voltage or ResistanceCondition
SIL7Bus + Line/Pulse generationDuring transmission
CG4Chassis Ground ± Body Ground/1
or lessAlways
SG5Signal Ground ± Body Ground/1
or lessAlways
BAT16Battery Positive ± Body Ground/9 to 14 VAlways
HINT:
If the display shows ºUNABLE TO CONNECT TO VEHICLEº
when you have connected the cable of the hand±held tester to
the DLC3, turned the ignition switch ON and operated the
hand±held tester, there is a problem on the vehicle side or tool
side.

If communication is normal when the tool is connected to
another vehicle, inspect the DLC3 on the original vehicle.

If communication is still impossible when the tool is con-
nected to another vehicle, the problem is probably in the
tool itself, so consult the Service Department listed in the
tool's instruction manual.
(d) Inspect the battery voltage.
Battery voltage: 11 to 14 V
If voltage is below 11 V, recharge the battery before proceeding.
(e) Check the CHK ENG.
(1) The CHK ENG lamp comes on when the ignition
switch is turned ON and the engine is not running.
HINT:
If the CHK ENG is not illuminated, troubleshoot the combination
meter.
(2) When the engine is started, the CHK ENG should
go off. If the lamp remains on, it means that the diag-
nosis system has detected a malfunction or ab-
normality in the system.
2. DTC CHECK (Normal Mode)
NOTICE:
Hand±held tester only:
When the diagnosis system is switched from the normal
mode to the check (test) mode, it erases all DTCs and freeze
frame data recorded in the normal mode. So before switch-
ing modes, always check the DTCs and freeze frame data,
and note them down.

A76859
Hand±Held Tester
DLC3
05±298
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
(a)Checking the DTCs using the hand±held tester. (1)Connect the hand±held tester to the DLC3.
(2)Turn the ignition switch ON and switch the hand±held tester main switch ON.
(3)Use the hand±held tester to check the DTCs and freeze frame data and note them down (for operat-
ing instructions, see the hand±held tester's instruc-
tion book).
(4)See page 05±309 to confirm the details of the DTCs.
HINT:
In the event that 2 or more DTCs are detected, the CHK ENG
lamp will indicate the smaller number DTC first.
(b) Clearing the DTCs using the hand±held tester. (1) Connect the hand±held tester to the DLC3.
(2) Turn the ignition switch ON.
(3) When operating the hand±held tester to erase thecodes, the DTCs and freeze frame data will be
erased. (See the hand±held tester's instruction
book for operating instructions.)
(c) Clearing the DTCs not using the hand±held tester. (1) Disconnect the battery terminal or remove the EFIand THROTTLE fuses from the engine room R/B
No. 1 for more than 60 seconds.
3. DTC CHECK (Check Mode)
HINT:
Hand±held tester only:
Compared to the normal mode, the check mode has more sens-
ing ability to detect malfunctions.
Furthermore, the same diagnostic items which are detected in
the normal mode can also be detected in the check (test) mode.
(a) Procedure for check mode using the hand±held tester.
(1) Check the initial conditions

Battery positive voltage 11 V or more.

Throttle valve fully closed.

Transmission in the ºPº or ºNº position.

Air conditioning switched OFF.
(2) Turn the ignition switch OFF.
(3) Connect the hand±held tester to the DLC3.
(4) Turn the ignition switch ON and switch the hand±
held tester main switch ON.