2005 TOYOTA AVENSIS diagnostic

05DVX−02
05−292
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
FAIL−SAFE CHART
1. FAIL−SAFE CHART
If any of the following codes is recorded, the engine ECM enters the fail−safe mode.
DTC No.Detection ItemFail−Safe OperationFail−Safe Deactivation Conditions
P0031Oxygen (A/F) Sensor heater Control
Circuit Low (Bank1Sensor1)Limits the engine power”Pass” condition detected
P0087Fuel Rail/System Pressure−Too LowLimits the engine powerIgnition switch OFF
P0088Fuel Rail/System Pressure−To o
HighLimits the engine powerIgnition switch OFF
P0093Fuel System Leak Detected−Large
LeakAfter shunt driving control is performed for1minute,
engine stallsIgnition switch OFF
P0095Intake Air Temperature Sensor 2 Cir-
cuit
P0097Intake Air Temperature Sensor 2 Cir-
cuit LowIntake air (intake manifold) temperature is fixed at
145_C (293_F)”Pass” condition detected
P0098Intake Air Temperature Sensor 2 Cir-
cuit High
145C(293F)
P0100Mass or Volume Air Flow Circuit
P0102Mass or Volume Air Flow Meter Cir-
cuit Low Input
Limits the engine power”Pass” condition detected
P0103Mass or Volume Air Flow Meter Cir-
cuit High Input
LimitstheenginepowerPassconditiondetected
P0105Manifold Absolute Pressure/Baromet-
ric Pressure Circuit
P0107Manifold Absolute Pressure/Baromet-
ric Pressure Circuit Low InputTurbo pressure is fixed value”Pass” condition detected
P0108Manifold Absolute Pressure/Baromet-
ric Pressure Circuit High Input
P0110Intake Air Temperature Circuit
P0112Intake Air Temperature Circuit Low
InputIntake air (built in mass air flow meter) temperature is
fixedvalue”Pass” condition detected
P0113Intake Air Temperature Circuit High
Inputfixed valuePassconditiondetected
P0115Engine Coolant Temperature Circuit
P0117Engine Coolant Temperature Circuit
Low Input
Fuel temperature sensor is specified value”Pass” condition detected
P0118Engine Coolant Temperature Circuit
High Input
FueltemperaturesensorisspecifiedvaluePassconditiondetected
P0120Throttle/Pedal Position Sensor/Switch
”A” Circuit
P0122Throttle/Pedal Position Sensor/Switch
”A” Circuit Low InputLimits the engine powerIgnition switch OFF
P0123Throttle/Pedal Position Sensor/Switch
”A” Circuit High Input
P0168Fuel Temperature Too HighLimits the engine power”Pass” condition detected
P0180Fuel Temperature Sensor ”A” Circuit
P0182Fuel Temperature Sensor ”A” Circuit
Low Input
Fuel temperature is fixed at 40_C(104_F)”Pass” condition detected
P0183Fuel Temperature Sensor ”A” Circuit
High Input
Fueltemperatureisfixedat40C(104F)Passconditiondetected

− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
05−293
AVENSIS Supplement (RM1045E) DTC No.Fail−Safe Deactivation Conditions Fail−Safe Operation Detection Item
P0190Fuel Rail Pressure Sensor Circuit
P0191Fuel Rail Pressure Sensor Circuit
Range/Performance
P0192Fuel Rail Pressure Sensor Circuit
Low InputLimits the engine powerIgnition switch OFF
P0193Fuel Rail Pressure Sensor Circuit
High Input
P0200Injector Circuit/OpenLimits the engine powerIgnition switch OFF
P0234Turbo/Super Charger Overboost
ConditionLimits the engine powerIgnition switch OFF
P0335Crankshaft Position Sensor ”A” Cir-
cuitLimits the engine power”Pass” condition detected
P0340Camshaft Position Sensor ”A” Circuit
(Bank1or Single Sensor)Limits the engine power”Pass” condition detected
P0400Exhaust Gas Recirculation FlowLimits the engine powerIgnition switch OFF
P0405Exhaust Gas Recirculation Sensor
”A” Circuit Low
Li itstheegiepo eIg itios itchOFF
P0406Exhaust Gas Recirculation Sensor
”A” Circuit HighLimits the engine powerIgnition switch OFF
P0488Exhaust Gas Recirculation Throttle
Position Control Range/PerformanceLimits the engine powerIgnition switch OFF
P0500Vehicle Speed Sensor ”A”Vehicle speed is fixed at 0 km/h (0 mph)”Pass” condition detected
P0544Exhaust Gas Temperature Sensor
Circuit (Bank1Sensor1)
P0545Exhaust Gas Temperature Sensor
Circuit Low (Bank1Sensor1)Limits the engine powerIgnition switch OFF
P0546Exhaust Gas Temperature Sensor
Circuit High (Bank1Sensor1)
P0627Fuel Pump Control Circuit / OpenLimits the engine power”Pass” condition detected
P1229Fuel Pump SystemLimits the engine powerIgnition switch OFF
P1251Turbo/Super Charger Overboost
Condition (Too High)Limits the engine powerIgnition switch OFF
P1271Fuel Regulator Circuit Malfunction
(EDU Drive)Limits the engine powerIgnition switch OFF
P1272Fuel Pressure Regulator MalfunctionLimits the engine powerIgnition switch OFF
P1386Injector For Exhaust Fuel Addition
SLow or excess fuel addition volume:
No fail−safe operation
SLow fuel addition volume:
Limits the engine power (Driving at engine speed of
up to approximately 80 km/h [50 mph] is permitted)
SStuck open:
Limits the engine power (Driving at engine speed of
up to approximately10 km/h [6 mph] is permitted)
Ignition switch OFF
P1425Differential Pressure Sensor Circuit
P1427Differential Pressure Sensor Circuit
Low
Differential pressure is fixed valueIgnition switch OFF
P1428Differential Pressure Sensor Circuit
High
DifferentialpressureisfixedvalueIgnitionswitchOFF
P1611IC Circuit MalfunctionLimits the engine powerIgnition switch OFF
P2002Particulate Trap Efficiency Below
Threshold (Bank1)Limits the engine powerIgnition switch OFF

05−294
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E) DTC No.Fail−Safe Deactivation Conditions Fail−Safe Operation Detection Item
P2031Exhaust Gas Temperature Sensor
Circuit (Bank1Sensor 2)
P2032Exhaust Gas Temperature Sensor
Circuit Low (Bank1Sensor 2)Limits the engine powerIgnition switch OFF
P2033Exhaust Gas Temperature Sensor
Circuit High (Bank1Sensor 2)
P2047Reductant Injector Circuit/Open
(Bank1Unit1)Limits the engine powerIgnition switch OFF
P2120Throttle/Pedal Position Sensor/Switch
”D” Circuit
P2121Throttle/Pedal Position Sensor/Switch
”D” Circuit Range/Performance
P2122Throttle/Pedal Position Sensor/Switch
”D” Circuit Low Input
P2123Throttle/Pedal Position Sensor/Switch
”D” Circuit High Input
LimitstheenginepowerIgnitionswitchOFF
P2125Throttle/Pedal Position Sensor/Switch
”E” CircuitLimits the engine powerIgnition switch OFF
P2127Throttle/Pedal Position Sensor/Switch
”E” Circuit Low Input
P2128Throttle/Pedal Position Sensor/Switch
”E” Circuit High Input
P2138Throttle/Pedal Position Sensor/Switch
”D”/”E” Voltage Correlation
P2226Barometric Pressure Circuit
P2228Barometric Pressure Circuit Low In-
put
Atmospheric pressure is fixed value”Pass” condition detected
P2229Barometric Pressure Circuit High In-
put
AtmosphericpressureisfixedvaluePassconditiondetected
P2237
Oxygen Sensor Pumping Current Cir-
cuit/Open (For A/F Sensor) (Bank1
Sensor1)
Limits the engine power”Pass” condition detected
P2238
Oxygen Sensor Pumping Current Cir-
cuit/Low (For A/F Sensor) (Bank1
Sensor1)
Limits the engine power”Pass” condition detected or Igni-
tion switch OFF
P2239
Oxygen Sensor Pumping Current Cir-
cuit/High (For A/F Sensor) (Bank1
Sensor1)
Limits the engine power”Pass” condition detected

05DVS−02
A84766
Hand−held
Tester
DLC3
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
05−291
AVENSIS Supplement (RM1045E)
CHECK MODE PROCEDURE
HINT:
Hand−held tester only:
Check mode has a higher sensitivity to detect malfunctions and
can detect malfunctions that normal mode cannot detect.
Check mode can also detect all the malfunctions that normal
mode can detect.
1. CHECK MODE PROCEDURE(Using the hand−held
tester)
(a) Turn the ignition switch to OFF.
(b) Connect the hand−held tester to the DLC3.
(c) Turn the ignition switch to ON and turn the hand−held tes-
ter ON.
(d) Select the item: DIAGNOSIS / OBD/MOBD / CHECK
MODE.
NOTICE:
All DTCs and freeze frame data recorded will be erased if:
1) the hand−held tester is used to change the ECM from
normal mode to check mode or vice versa; or 2) during
check mode, the ignition switch is turned from ON to ACC
or OFF.
(e) Start the engine. The CHK ENG should turn off after the
engine starts.
(f) Simulate condition of the malfunction described by the
customer or freeze frame data.
(g) After simulating the malfunction condition, use the hand−
held tester diagnosis selector to check the DTCs, freeze
frame data and other data.
(h) After checking the DTCs, inspect the applicable parts.
2. CLEAR DTCs (Using the hand−held tester)
(a) Connect the hand−held tester to the DLC3.
(b) Turn the ignition switch to ON and turn the hand−held tes-
ter ON. (Do not start the engine)
(c) Select the item: DIAGNOSIS / OBD/MOBD / DTC INFO
/ CLEAR CODES.
(d) Clear DTCs and freeze frame data.
HINT:
If you need help with the hand−held tester, refer to its instruction
book.
(e) Disconnect the battery terminal or remove the ECD fuse
from the engine room R/B for more than 60 seconds.

05I7I−01
FI0534
A84766
Hand −held
Tester
DLC3
05 −288
−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
AVENSIS Supplement (RM 1045E)
DIAGNOSIS SYSTEM
1. DESCRIPTION
S When troubleshooting Euro −OBD vehicles, the only dif-
ference from the usual troubleshooting procedure is that
you c onnect an O BD scan t ool com plying wit h I SO
1 503 1− 4 or a hand −held tester to the vehicle, and read
the various data output from the vehicle’s ECM.
S Eur o −O BD r egulat ions r equir e t hat t he v ehicle’s on −
board computer illuminates the check engine warning
light (CHK ENG) on the instrument panel when the com-
puter detects a malfunction in the emission control sys-
tem / components or in the power train control compo-
nents which affect vehicle emissions, or a malfunction in
t he c om put er. I n addit ion, t he applicable Diagnost ic
Trouble Codes (DTCs) prescribed by ISO 1503 1− 4 are
recorded in the ECM memory (see page 05 −299). If the
malfunction does not reoccur in 3 consecutive trips, the
CHK ENG goes off automatically but the DTCs remain re-
corded in the ECM memory.
S To check the DTCs, connect the OBD scan tool or hand −
held tester to Data Link Connector 3 (DLC3) on the ve-
hicle. The OBD scan tool or hand −held tester also en-
ables 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.)
S DTCs include ISO controlled codes and manufacturer
controlled codes. ISO controlled codes must be set as
pr escr ibed by t he I SO , while m anuf act ur er c ont r olled
codes can be set by the manufacturer within the pre-
scribed limits (see DTC chart on page 05 −299).
S The diagnosis system operates in normal mode during
normal vehicle use. It also has check (test) mode for tech-
nicians to simulate malfunction symptoms and trouble-
shoot. Most DTCs use 2 trip detection logic* to prevent er-
roneous detection, and to ensure a thorough malfunction
detection. By switching the ECM to 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 page 05 −29 1)
S* 2 trip detection logic
When a malfunction is first detected, the pending 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 illumi-
nate (2nd trip). (However, the ignition switch must be
turned OFF between the 1st trip and 2nd trip.)

C52361DLC3
FI0534
−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
05 −289
AVENSIS Supplement (RM 1045E)
S Freeze frame data
Freeze frame data records the engine conditions when a
malfunction is detected. When troubleshooting, freeze
frame data can help determine if the vehicle was running
or stopped, if the engine was warmed up or not, if the air −
fuel ratio was lean or rich, and other data from the time the
malfunction occurred.
2. CHECK DLC3
(a) The v ehicle’s ECM uses t he I SO 9 1 41− 2( Eur o −OBD)
communication protocol. The terminal arrangement of
the DLC3 complies with ISO 1503 1− 03 and matches the
ISO 9 141− 2 format.
SymbolTerminal No.NameReference TerminalResultCondition
SIL7Bus ”+” line5− Signal groundPulse generationDuring transmission
CG4Chassis groundBody ground1
or lessAlways
SG5Signal groundBody ground1
or lessAlways
BAT16Battery positiveBody ground9to 14VAlways
HINT:
Connect the cable of the hand −held tester to the DLC3, turn the
ignition switch to ON and attempt to use the hand −held tester.
If the screen displays UNABLE TO CONNECT TO VEHICLE,
a problem exists in the vehicle side or the tester side.
S If the communication is normal when the tool is connected
to another vehicle, inspect the DLC3 on the original ve-
hicle.
S If the communication is still impossible when the tool is
connected to another vehicle, the problem is probably in
the tester itself, so consult the Service Department listed
in its instruction manual.
3. INSPECT BATTERY VOLTAGE Battery voltage: 11 to14V
If voltage is below 11 V, recharge the battery before proceeding.
4. CHECK CHK ENG
(a) The CHK ENG comes on when the ignition switch is turned to the ON position and the engine is not running.
HINT:
If the CHK ENG is not illuminated, troubleshoot the combination
meter circuit (see page 05 −299).
(b) When the engine is started, the CHK ENG should turn off. If the CHK ENG illuminates again, the diagnosis system
has detected a malfunction or abnormality in the system.

054KK−10
A66714
E13
E12E10
E9
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
05−285
AVENSIS Supplement (RM1045E)
TERMINALS OF ECM
HINT:
Each ECM terminal’s standard voltage is shown in the table below.
In the table, first follow the information under ”Symbols (Terminals No.)”. Look under ”Tester Connection” for
the terminals to be inspected. The standard voltage between the terminals is shown under ”STD Voltage
(V)”.
Use the illustration above as a reference for the ECM terminals.
Symbols (Terminals No.)Wiring ColorTerminal DescriptionConditionSTD Voltage (V)
BATT (E10−2)−E1(E12−7)B−Y−BR
Battery (for measuring the
battery voltage and for the
ECM memory)
Always9to14
IGSW (E9−9)−E1(E12−7)B−W−BRIgnition switchIgnition switch ON9to14
+B (E9−1)−E1(E12−7)B−W−BRPower source of ECMIgnition switch ON9to14
MREL(E98)E1(E127)GRBRECDrelayIgnition switch ON9to14MREL(E9−8)−E1(E12−7)GR−BRECD relayIgnition switch OFF0to1.5
VC (E13−18)−E1(E12−7)R−W−BRPower source of sensor
(a specific voltage)Ignition switch ON4.5 to 5.5
VPA(E922)EPA(E928)GY
Accelerator pedal position
sensor(fortheengine
Ignition switch ON, Accelerator ped-
al fully released0.5 to1.1
VPA(E9−22)−EPA(E9−28)G−Ysensor (for the engine
control)Ignition switch ON, Accelerator ped-
al fully depressed2.6 to 4.5
VPA2(E923)EPA2(E929)WY
Accelerator pedal position
sensor(forthesensor
Ignition switch ON, Accelerator ped-
al fully released1.2 to 2.0
VPA2 (E9−23)−EPA2 (E9−29)W−Ysensor (for the sensor
malfunction detection)Ignition switch ON, Accelerator ped-
al fully depressed3.4 to 5.3
VCPA (E9−26)−EPA (E9−28)B−Y
Power source of acceler-
ator pedal position sensor
(for VPA)
Ignition switch ON4.5 to 5.5
VCP2 (E9−27)−EPA2 (E9−29)B−Y
Power source of acceler-
ator pedal position sensor
(for VPA2)
Ignition switch ON4.5 to 5.5
VG (E12−24)−EVG (E12−32)G−L−YMass air flow meterIdling0.5 to 3.4
THA (E13−31)−E2 (E13−28)G−R−BRIntake air temperature
sensorIdling, Intake air temperature at
20˚C (68˚F)0.5 to 3.4
THIA (E13−20)−E2 (E13−28)GR−BRIntake air temperature
sensorIdling, Intake air temperature at
80˚C(176˚F)0.3 to 0.9
THW (E13−19)−E2 (E13−28)B−W−BREngine coolant tempera-
ture sensorIdling, Engine coolant temperature
at 80˚C(176˚F)0.2 to1.0

05−286
−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
AVENSIS Supplement (RM 1045E)
Symbols (Terminals No.)
STD Voltage (V)
Condition
Terminal Description
Wiring Color
STA (E9 −7) − E1 (E 12− 7)B −Y − BRStarter signalCranking6.0 or more
#1 (E 13− 24) − E1 (E 12− 7)
#2 (E 13− 23) − E1 (E 12− 7)
#3 (E 13− 22) − E1 (E 12− 7)
#4 (E 13− 21) − E1 (E 12− 7)G −W − BR
W −R − BR
R −W − BR
W −L − BR
InjectorIdlingPulse generation
(See page 05 −368)
G+ (E 12− 23) −G− (E 12− 31)P −LCamshaft position sensorIdlingPulse generation
(See page 05 −384)
NE+ (E 13− 27) −NE −(E 13− 34)G −RCrankshaft position sen-
sorIdlingPulse generation
(See page 05 −38 1)
STP(E 10 15)E 1(E 12 7)G WBRStopla ps itch
Ignition switch ON, Brake pedal de-
pressed7.5 to 14
STP (E 10−1 5)−E1 (E 12− 7)G −W− BRStop lamp switchIgnition switch ON, Brake pedal re-
leased0to 1.5
ST 1(E10 14)E 1(E 12 7)G WBRStoplampswitchBrake pedal depressed0to 1.5ST 1− (E10−1 4)−E1 (E 12− 7)G −W− BRStoplampswitch
(opposite to STP)Brake pedal released7.5 to 14
TC (E9 −11)− E1 (E 12− 7)W −L −BRTerminal TC of DLC 3Ignition switch ON9to 14
W(E9 12)E 1(E 12 7)WBRCheck engine warningCHK ENG illuminated0to3W (E9 −12)−E1 (E 12− 7)W −BRCheckenginewarning
light (CHK ENG)CHK ENG not illuminated9to 14
SPD (E 10−1 7)−E1 (E 12− 7)V −W −BRSpeed signal from com-
bination meterIgnition switch ON, Rotate driving
wheel slowlyPulse generation
(See page 05 −408)
SIL (E9 −18)−E1 (E 12− 7)W −G −BRTerminal SIL of DLC3Connect the hand −held tester to the
DLC3Pulse generation
Applied negative pressure of 40 kPa
(300 mmHg, 11.8 in.Hg)1.4 to 2.0
PIM (E 12− 28) −E2 (E 13− 28)W −R −BRTurbo pressure sensorSame as atmospheric pressure2.0 to 2.6PIM(E 12 28)E2(E13 28)W RBRTurbopressuresensor
Applied positive pressure of 69 kPa
(518 mmHg, 20.4 in.Hg)3.0 to 3.6
IREL(E9 10)E 1(E 12 7)YBREDUrelayIgnition switch OFF9to 14IREL (E9 −10)−E1 (E 12− 7)Y− BREDU relayIdling0to 1.5
TACH (E9 −4) −E1 (E 12− 7)GR −R −BREngine speedIdlingPulse generation
VCS (E 12− 2) −E2S (E 12−1 )R−W −BRCommon rail pressure
sensorIgnition switch ON4.5 to 5.5
PCR 1(E 13− 26) −E2 (E 13− 28)P −BRCommon rail pressure
sensor (main)Idling1.8 to 2. 1
PCR2 (E 13− 33) −E2 (E 13− 28)P −B −BRCommon rail pressure
sensor (sub)Idling1.2 to 1.5
GREL(E9 15)E 1(E 12 7)RBRGlowplugrelayCranking9to 14GREL(E9 −15)−E1 (E 12− 7)R −BRGlowplug relayIdling0to 1.5
THF (E 13− 29) −E2 (E 13− 28)L −BRFuel temperature sensorIgnition switch ON0.5 to 3.4
ALT (E 13− 8) −E1 (E 12− 7)B −L − BRGenerator (Alternator)
duty signalIdlingPulse generation
PCV+ (E 13− 2) −PCV −(E 13−1 )LG −R −LGSuction control valveIdlingPulse generation
(See page 05 −429)
PRD (E 13− 32) −E1 (E 12− 7)R −L − BRPressure relief valve drive
signalIgnition switch OFF4 to 6.5
INJF (E 13− 25) −E1 (E 12− 7)R −B −BREDUIdlingPulse generation
(See page 05 −368)
VN (E 13−1 0)−E1 (E 12− 7)W −BRVRV (for VN turbochar-
ger)Ignition switch ONPulse generation
(See page 05 −312)
AF2+ (E 10− 35) −E1 (E 12− 7)B −BRA/FsensorIgnitionswitchON3.0 to 3.6
AF2 −(E 10− 34) −E1 (E 12− 7)W −BRA/F sensorIgnition switch ON2.7 to 3.3
HAF2 (E 12− 5) −E1 (E 12− 7)L− R −BRA/F sensor heater duty
signalIdlingPulse generation
FIV (E 13− 3) −E1 (E 12− 7)L− R −BRExhaust fuel addition in-
jectorEngine warmed up, Idling, Every 1
to 2 minutesPulse generation
(See page 05 −470)