2005 TOYOTA AVENSIS warning

05CDT±01
ENGINE CONTROL SYSTEM Check Sheet
Customer's Name
Driver's Name
Date Vehicle
Brought in
License No.
VIN
Production Date
Licence No.
Odometer Reading
km
miles
Problem Symptoms
Engine does
not Start
Difficult to
Start
Poor Idling
Poor
Driveability
Engine Stall
Others
Engine does not crankNo initial combustionNo complete combustion
Engine cranks slowly
Other
Incorrect first idleIdling rpm is abnormalHigh ( rpm)Low ( rpm)
Rough idling
Other
HesitationBack fireMuffler explosion (after±fire)Surging
Knocking
Other
Soon after startingAfter accelerator pedal depressed
After accelerator pedal released
During A/C operation
Shifting from N to D
Other
Data Problem
Occurred
Problem Frequency
Condition When
Problem Occurs
Weather
Engine Operation
Engine Temp. Place Outdoor
TemperatureConstant
Sometimes ( times per day/month)Once only
Other
Fine
CloudyRainySnowyVarious/Other
Hot
Warm Cool
HighwaySuburbsInner CityUphillDownhill
Rough road
Other
Cold
Warming upAfter Warming upAny temp.Other
Starting
Just after starting ( min.)IdlingRacing
Driving
Constant speedAccelerationDeceleration
A/C switch ON/OFF
Other
Condition of check engine warning light
(CHK ENG)Remains on Sometimes lights up Does not light up
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal mode
(Pre±check)
Check Mode DTC InspectionInspector's
Name
Cold (approx.
C/
F)
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±293
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

A81015
Engine
Room
R/B No. 1
Engine
Room
J/B No. 1W
9ECM
W
E9 11
1 2
B±W22 1
4A
Battery4
2I13
Ignition
Switch
DH 6
B±R B±R
C11
Combination
Meter Assy
Check
Engine
Warning
Light AM2
IG2
AM2
Driver
Side
J/B
FL MAINEngine
Room
J/B
No. 4
4BB±G 1A 1B±R
IE41
(LHD)IP11
(RHD)
18 DA
J8C
(LHD)J26A
(RHD)J8C
(LHD)J26A
(RHD) J/CB±W IGN
1
1
B±G 05±282
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
CHECK ENGINE WARNING LIGHT CIRCUIT
CIRCUIT DESCRIPTION
If the ECM detects a trouble, the CHK ENG is illuminated. At this time, the ECM records a DTC in the memory.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Troubleshoot each trouble symptom in accordance with the chart below .
CHK ENG remains onStart inspection from step 1
CHK ENG is not illuminateStart inspection from step 3
05C7C±01

±
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).

054JC±04
ENGINE CONTROL SYSTEM Check Sheet
Customer's Name
Driver's Name
Date Vehicle
Brought in
License No.
VIN
Production Date
Licence No.
Odometer Reading
km
miles
Problem Symptoms
Engine does
not Start
Difficult to
Start
Poor Idling
Poor
Driveability
Engine Stall
Others
Engine does not crankNo initial combustionNo complete combustion
Engine cranks slowly
Other
Incorrect first idleIdling rpm is abnormalHigh ( rpm)Low ( rpm)
Rough idling
Other
HesitationBack fireMuffler explosion (after±fire)Surging
Knocking
Other
Soon after startingAfter accelerator pedal depressed
After accelerator pedal released
During A/C operation
Shifting from N to D
Other
Data Problem
Occurred
Problem Frequency
Condition When
Problem Occurs
Weather
Engine Operation
Engine Temp. Place Outdoor
TemperatureConstant
Sometimes ( times per day/month)Once only
Other
Fine
CloudyRainySnowyVarious/Other
Hot
Warm Cool
HighwaySuburbsInner CityUphillDownhill
Rough road
Other
Cold
Warming upAfter Warming upAny temp.Other
Starting
Just after starting ( min.)IdlingRacing
Driving
Constant speedAccelerationDeceleration
A/C switch ON/OFF
Other
Condition of check engine warning light
(CHK ENG)Remains on Sometimes lights up Does not light up
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal mode
(Pre±check)
Check Mode DTC InspectionInspector's
Name
Cold (approx.
C/
F)
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±527
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

A81481
EDU Wiring DiagramCOM3
COM1 COM2
Pressure
Discharge
Valve
Injector
INJ#1
INJ#4INJ#2INJ#3
PRV
GND
EDU Connector
Control
Circuit
DC/DC
Converter
BATTERY
IJT#1
IJT#4
IJT#2
IJT#3PRDIJF
ECM
Maximum 150 V
Confirmation
Pulse Command
Pulse
Warning:
Terminal J, I, H, K, L, M, N and S are high voltage
E5
E4
Maximum 150 V
05±604
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0200INJECTOR CIRCUIT / OPEN
HINT:

For more information on the EDU, see page 05±517.

If P0200 are present, Use the diagnostic trouble code matrix for fuel sy\
stem, see page 05±517.
CIRCUIT DESCRIPTION
The EDU has been adopted to drive the injector at high speeds. The EDU has \
realized high±speed driving
under high fuel pressure conditions using the DC/DC converter that provides a\
high±voltage, quick±charging
system.
Soon after the EDU receives an injection command signal (IJT) from the\
ECM, the EDU responds to the com-
mand with injector injection confirmation signal (IJF) when the current is\
applied to the injector.
05CPR±01

A81508
ECM EDU
IJT#1 INJF
COM1 IJF
IJT#4
IJT#2
IJT#3 #1
#4
#2
#3INJ#1
INJ#4
INJ#2
INJ#3 COM2
Injector
AB
Warning: Terminal COM1, COM2, and INJ#1 to 4 are high±voltage
C DHigh±voltage Area
A09438
#1
#2#3
#45 V/
Division
20 msec./Division Signal Waveform
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±607
AVENSIS REPAIR MANUAL (RM1018E)
PULSE GENERATION INSPECTION
HINT:
Problem area can be identified by inspecting waveform at the following inspection points.
HINT:
Inspect the following inspection points ºA and Dº or º B and Cº at the same time.
Malfunction pointTrouble area
A
ECM
B (if A is normal)
Open or short in º#1 to #4 (ECM)º ± ºIJT#1 to #4 (EDU)º harness or connector.
C (if A and B are normal)

Open or short in ºINJ#1 to #4 (EDU)º ± ºCOM1 and/or COM2º (EDU) circuit.

Injector

EDU
D (if A, B and C are normal)
Open or short in ºIJF (EDU)º ± ºINJF (ECM)º circuit. (P1271 is set simultaneously)
(a) Reference: Inspect using the oscilloscope.
The correct waveform is as shown in the diagram on the
left.
Inspection PointsSpecified Condition
A and BCorrect waveform is as shown

A81015
Engine
Room
R/B No. 1W
9ECM
W
E9 12
1 2
B
B±W22 1
3
Battery4
2 DH 6
B±R B±R
C11
Combination
Meter Assy
Check
Engine
Warning
Light AM2
IG2
AM2
Driver
Side
J/B
FL MAINEngine
Room
R/B
No. 3
3B 1A 1B±R
IE41
(LHD)IP11
(RHD)
18 DA
J8C
(LHD)J26A
(RHD)J8C
(LHD)J26A
(RHD) J/CB±W IGNI13
Ignition
Switch 05±694
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
CHECK ENGINE WARNING LIGHT CIRCUIT
CIRCUIT DESCRIPTION
If the ECM detects a trouble, the CHK ENG is illuminated. At this time, the ECM records the DTC in its
memory.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Troubleshoot each trouble symptom in accordance with the chart below .
CHK ENG remains onStart inspection from step 1
CHK ENG is not illuminatedStart inspection from step 3
05B62±03