2005 TOYOTA AVENSIS diagnostic

±
DIAGNOSTICS ECD SYSTEM (1CD±FTV)
05±545
AVENSIS REPAIR MANUAL (RM1018E)P0107
(05±584)
Manifold Absolute Pressure/
Barometric Pressure Circuit Low
Input
Open or short in manifold absolute pressure sensor circuit

Manifold absolute pressure sensor

Turbocharger assy

P0108
(05±584)Manifold Absolute Pressure/
Barometric Pressure Circuit High
Input
Turbocharger assy

EGR valve assy

ECM

P0110
(05±589)Intake Air Temperature Circuit
O h ti itk it t i it

P0112
(05±589)Intake Air Temperature Circuit
Low Input
Open or short in intake air temperature sensor circuit

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

ECM

P0113
(05±589)Intake Air Temperature Circuit
High Input
ECM

P0115
(05±593)Engine Coolant Temperature Cir-
cuit
Open or short in engine coolant temp. sensor circuit

Engine coolant temp. sensor

ECM

P0116
(05±597)Engine Coolant Temperature Cir-
cuit Range/Performance Prob-
lem
Cooling system

Engine coolant temperature sensor

Thermostat

P0117
(05±593)Engine Coolant Temp. Circuit
Low Input
Open or short in engine coolant temp. sensor circuit

Engine coolant tempsensor

P0118
(05±593)Engine Coolant Temp. Circuit
High Input
Engine coolant temp. sensor

ECM

P0168
(05±598)Fuel Temperature Too High
Fuel temperature sensor
P0180
(05±599)Fuel Temperature Sensor ºAº
Circuit
Open or short in fuel temp sensor circuit

P0182
(05±599)Fuel Temperature Sensor ºAº
Circuit Low Input
Open or short in fuel temp. sensor circuit

Fuel temperature sensor

ECM

P0183
(05±599)Fuel Temperature Sensor ºAº
Circuit High Input
ECM

P0190
(05±557)Fuel Rail Pressure Sensor Cir-
cuit
Open or short in fuel pressure sensor circuit

Fuel pressure sensor

ECM

P0191
(05±603)Fuel Rail Pressure Sensor Cir-
cuit Range/Performance
Fuel pressure sensor
P0192
(05±557)Fuel Rail Pressure Sensor Cir-
cuit Low Input
Open or short in fuel pressure sensor

Fuelpressure sensor

P0193
(05±557)Fuel Rail Pressure Sensor Cir-
cuit High Input
Fuel pressure sensor

ECM

P0200
(05±604)Injector Circuit / Open

Open or short in EDU circuit

Injector

EDU

ECM

P0234
(05±612)Turbo/Super Charger Overboost
Condition
VRV

Open or short in VRV circuit

Turbocharger

P0299
(05±612)Turbo/Super Charger Under-
boost
g

EGR valve

Vacuum hose

ECM

P0335
(05±616)Crankshaft Position Sensor ºAº
Circuit
Open or short in crankshaft position sensor circuit

Crankshaft position sensor
P0339
(05±616)Crankshaft Position Sensor ºAº
Circuit Intermittent
Crankshaft osition sensor

Signal plate (crankshaft timing pulley)

ECM

P0340
(05±620)Camshaft Position Sensor ºAº
Circuit (Bank 1 or Single Sensor)

Open or short in camshaft position sensor circuit

Camshaft position sensor

Camshaft timing pulley

ECM


05±546
±
DIAGNOSTICS ECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E) P0380
(05±622)
Glow Plug/Heater Circuit ºAº

Open or short in glow plug circuit

Glow fuse

Glow relay

Glow plug

ECM

P0400
(05±629)Exhaust Gas Recirculation Flow
EGR valve assy

EGR passage
P0403
(05±629)Exhaust Gas Recirculation Con-
trol Circuit
EGR assage

Open or short in EGR circuit

ECM
P0488
(05±633)Exhaust Gas Recirculation
Throttle Position Control Range/
Performance
Open or short in intake shutter circuit

Open or short in fully opened switch circuit

Intake shutter

ECM

P0500
(05±640)Vehicle Speed Sensor ºAº

Open or short in speed sensor circuit

Speed sensor

Combination meter

ECM

Skid control ECU

P0504
(05±643)Brake Switch ºAº/ºBº Correlation

Short in stop lamp switch signal circuit

Stop lamp switch

ECM


P0560
(05±647)System Voltage
Open in back±up power source circuit

ECM
P0606
(05±650)ECM/PCM Processor

ECM



P0607
(05±650)Control Module Performance

ECM

P0622
(05±651)Generator Field ºFº Terminal Cir-
cuit

Open in generator circuit

Generator

Drive belt

ECM

P0627
(05±655)Fuel Pump Control Circuit / Open

Open or shot in suction control valve circuit

Suction control valve

ECM

P1229
(05±563)Fuel Pump System

Short in supply pump (suction control valve) circuit

Suction control valve

ECM

P1238
(05±658)Injector Malfunction

Injector

EDU (P0200 is set simultaneously)

Open or short in engine wire (P0200 is set simultaneously)

Connector connection (P0200 is set simultaneously)

Compression pressure

Valve clearance

Valve timing

ECM

P1251
(05±612)Turbo/Super Charger Overboost
Condition (Too High)

VRV

Open or short in VRV circuit

Turbocharger

EGR valve

Vacuum hose

ECM

P1271
(05±663)Fuel Regulator Circuit Malfunc-
tion (EDU Drive)

Open or short in pressure discharge valve circuit

Open or short in pressure discharge valve it self

EDU

ECM

P1272
(05±663)Fuel Pressure Regulator Mal-
function

Open or short in pressure discharge valve circuit (P1271 is set
simultaneously)

Pressure discharge valve

Supply pump

ECM


±
DIAGNOSTICS ECD SYSTEM (1CD±FTV)
05±547
AVENSIS REPAIR MANUAL (RM1018E)P1601
(05±673)
Injector Correction Circuit Mal-
function (EEPROM)
Injector compensation code

ECM
P1611
(05±650)IC Circuit Malfunction
ECM
P2120
(05±674)Throttle/Pedal Position Sensor/
Switch ºDº Circuit
Open or short in accelerator pedal position sensor circuit

Accelerator pedal position sensor

ECM

P2121
(05±681)Throttle/Pedal Position Sensor/
Switch ºDº Circuit Range/Perfor-
mance
Accelerator pedal position sensor circuit

Accelerator pedal position sensor

ECM

P2122
(05±674)Throttle/Pedal Position Sensor/
Switch ºDº Circuit Low Input
P2123
(05±674)Throttle/Pedal Position Sensor/
Switch ºDº Circuit High Input
P2125
(05±674)Throttle/Pedal Position Sensor/
Switch ºEº Circuit

Open or short in accelerator pedal position sensor circuit
P2127
(05±674)Throttle/Pedal Position Sensor/
Switch ºEº Circuit Low Input
Oen or short in accelerator edal osition sensor circuit

Accelerator pedal position sensor

ECM
P2128
(05±674)Throttle/Pedal Position Sensor/
Switch ºEº Circuit High Input
P2138
(05±674)Throttle/Pedal Position Sensor/
Switch ºDº/ºEº Voltage Correla-
tion

P2226
(05±684)Barometric Pressure Circuit
P2227
(05±685)Barometric Pressure Circuit
Range/Performance

ECM

P2228
(05±685)Barometric Pressure Circuit Low
Input
ECM

P2229
(05±685)Barometric Pressure Circuit High
Input
B2799
(05±1625)Engine Immobiliser System Mal-
function
Immobiliser system

*1: Check engine warning light (CHK ENG) is illuminated

05CPB±01
FI2547
A76859
Hand±held
Tester
DLC3
05±528
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
PRE±CHECK
1.DIAGNOSIS SYSTEM
(a)Description for Euro±OBD

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 the 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
power train control components which affect vehicle
emissions, or a malfunction in the computer. In addi-
tion to an illumination of the CHK ENG when a mal-
function is detected, the applicable Diagnostic
Trouble Codes (DTCs) prescribed by ISO 15031±4
are recorded in the ECM memory (See page
05±544). 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 the freeze frame data and various forms of
engine 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±544).

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 mode using hand±
held tester when troubleshooting, a technician can
cause the CHK ENG to illuminate for a malfunction
that is only detected once or momentarily (Hand±
held tester only) (See step 3).

3 2 1 45678
9 1 0 111 21 31 41 51 6
DLC3
A04550
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±529
AVENSIS REPAIR MANUAL (RM1018E)

* 2 trip detection logic
When a logic malfunction is first detected, the pend-
ing fault code is 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) (However, the igni-
tion switch must be turned OFF between the 1st trip
and 2nd trip).

Freeze frame data:
The freeze frame data records the engine condi-
tions (fuel system, calculator load, engine coolant
temperature, engine speed, vehicle speed, etc.)
when the malfunction is detected. When trouble-
shooting, it is useful for determining whether the ve-
hicle was running or stopped, the engine was
warmed up or not, etc. at the time of the malfunc-
tion.

Priorities for troubleshooting:
If troubleshooting priorities for multiple DTCs are
given in the applicable DTC chart, these should be
followed.
(b) Check the DLC3.
The vehicle's ECM uses the ISO 9141±2(Euro±OBD)
communication protocol. The terminal arrangement of
the DLC3 complies with ISO 15031±03 and matches the
ISO 9141±2 format.
Terminal No.Connection / Voltage or ResidenceCondition
7Bus + Line / Pulse generation+During transmission
4Chassis Ground ± Body Ground / 1
or lessAlways
16Battery 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 Deparment listed in the
tool's instruction manual.

A76859
Hand±held
Tester
DLC3
05±530
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
(c)Inspect the battery voltage. Battery voltage: 11 to 14 V
If voltage is below 11V, recharge the battery before proceeding.
(d)Check the CHK ENG.
(1)The CHK ENG lamp comes on when the ignitionswitch is turned ON and the engine is not running.
HINT:
If the CHK ENG is not illuminate, troubleshoot the combination
meter.
(2)When the engine is started, the CHK ENG shouldgo 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 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 then write them down.
(a)Checking 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 then write them down. If you
need help with the hand±held tester, refer to the
hand±held tester's instruction book).
(4)See page 05±544 to confirm the details of the
DTCs.
(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 ETCS fuses from the engine room R/B for more
than 60 seconds.

A76900
ON
OFF
0.13 Sec0.13 Sec
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±531
AVENSIS REPAIR MANUAL (RM1018E)
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 diag-
nostic items which are detected in the normal mode can also be
detected in the check mode.
(a) Procedure for Check Mode using the hand±held tester.
(1) Check the initial conditions.

Battery positive voltage 11V or more.

Throttle valve fully closed.

Transmission in the ºNº position.

A/C 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.
(5) Switch the hand±held tester from the normal mode
to the check mode. The CHK ENG blinks in 0.13 sec
intervals as shown in the illustration.
NOTICE:
If the hand±held tester switches the ECM from the normal
mode to the check mode or vice±versa, or if the ignition
switch is turned from ON to ACC or OFF during the check
mode, the DTC and freeze frame data will be erased.
(6) Start the engine. (The CHK ENG goes off after the
engine start.)
(7) Simulate the conditions of the malfunction de-
scribed by the customer.
NOTICE:
Leave the ignition switch ON until you have checked the
DTC, etc.
(8) After simulating the malfunction conditions, use the
hand±held tester diagnosis selector to check the
DTCs and freeze frame data, etc.
HINT:
Be sure not to turn the ignition switch OFF, because the diagno-
sis system is changed from the check mode to the normal mode
and will result in all of the DTCs and freeze frame data being
erased.
(9) After checking the DTC, inspect the applicable cir-
cuit.
(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 the
codes, the DTCs and freeze frame data will be
erased. (See the hand±held tester's instruction
book for operating instructions.)

05±532
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
(c) Clearing the DTCs not using the hand±held tester:
(1) Disconnect the battery terminal or remove the EFI
and ETCS fuses from the engine room R/B for more
than 60 seconds.
4. FAIL±SAFE CHART
If any of the following codes are recorded, the ECM enters the fail±safe mode.
DTC No.Fail±Safe OperationFail±Safe Deactivation Conditions
P0087VTA is fixed at 10 %Ignition switch OFF
P0088VTA is fixed at 10 %Ignition switch OFF
P0093After fail safe driving control is performed for 1 minute, en-
gine stallsIgnition switch OFF
P0095
P0097
P0098
Intake air temp. is fixed at 145
C (293
F)Return to normal condition
P0105
P0107
P0108
Turbo pressure is set at fixed valueReturn to normal condition
P0115
P0117
P0118
When fuel temp. sensor operates normal and intake air
temp. is less than 15
C (59
F), value of fuel temp. sensor
is substituted
When fuel temp. sensor operates normal and intake air
temp. is more than 20
C (68
F), value is fixed at 120
C
(248
F)
When the fuel temp. sensor is abnormal, value is fixed at
40
C (104
F)
Return to normal condition
P0168Output limitReturn to normal condition
P0180
P0182
P0183
Fuel temp. is fixed at 40
C (104
F)Return to normal condition
P0190
P0191
P0192
P0193
VTA is fixed at 10 %Ignition switch OFF
P0200VTA is fixed at 25 %Ignition switch OFF
P0335Output limitReturn to normal condition
P0488VTA is fixed at 25 %Ignition switch OFF
P0500Vehicle speed is fixed at 0 km/h (0 mph)Vehicle speed less than 10 km/h (6 mph)
P1229VTA is fixed at 10 %Ignition switch OFF
P1271VTA is fixed at 25 %Ignition switch OFF
P1272VTA is fixed at 25 %Ignition switch OFF
P2120
P2122
P2123
P2125
P2127
P2128
P2138
Output limitIgnition switch OFF
5. CHECK FOR INTERMITTENT PROBLEMS
Hand±held tester only:
By putting the vehicle's ECM in the check mode, the 1 trip detection logic is possible instead of the 2 trip
detection logic, and the sensitivity to detect faults is increased. This makes it easier to detect intermittent
problems.
(a) Clear the DTCs (See step 2).
(b) Set the check mode (See step 3).