2005 TOYOTA AVENSIS warning

05C67±01
A66714
E13E12E10E9
05±20
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
TERMINALS OF ECM
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
BATT (E9 ± 3) ± E1 (E12 ± 7)B±Y ± BRAlways8 to 14
FC (E9 ± 10) ± E1 (E12 ± 7)G±Y ±BRIG switch ON8 to 14
FC (E9 ± 10) ± E1 (E12 ± 7)G±Y ±BRIdlingBelow 1.5
W (E9 ± 11) ± E1 (E12 ± 7)W ±BRIdling8 to 14
W (E9 ± 11) ± E1 (E12 ± 7)W ±BRIG switch ONBelow 3.5
+B (E9 ± 1) ± E1 (E12 ± 7)B±R ±BRIG switch ON8 to 14
STP (E10 ± 19) ± E1 (E12 ± 7)G±W ±BRIG switch ON, brake pedal depressed8 to 14
STP (E10 ± 19) ± E1 (E12 ± 7)G±W ±BRIG switch ON, brake pedal releasedBelow 1.5
F/PS (E9 ± 14) ± E1 (E12 ± 7)LG±B ±BRIG switch ONPulse generation
STA (E12 ± 9) ± E1 (E12 ± 7)B±Y ±BRCranking5.5 or more
HT1B (E10 ± 4) ± E03 (E12 ± 5)P ±W±BIdlingBelow 3.0
HT1B (E10 ± 4) ± E03 (E12 ± 5)P ±W±BIG switch ON9 to 14
EMPS (E12 ± 29) ± E1 (E12 ± 7)GR ±BRIG switch ON8 to 14
SPD (E10 ± 17) ± E1 (E12 ± 7)V±W ±BRIG switch ON, rotate driving wheel slowlyPulse generation
(See page 05±98)
OX1B (E12 ± 21) ± E2 (E13 ± 28)B ±BRMaintain engine speed at 2,500 rpm for 2 min. after warning upPulse generation
(See page 05±91)
TACH (E9 ± 5) ± E1 (E12 ± 7)GR±R ±BRIdlingPulse generation
VC (E13 ± 18) ± E2 (E13 ± 28)R±W ±BRIG switch ON4.5 to 5.5
HT1A (E12 ± 4) ± E03 (E12 ± 5)Y ±W±BIdlingBelow 3.0
HT1A (E12 ± 4) ± E03 (E12 ± 5)Y ±W±BIG switch ON9 to 14
EVP1 (E13 ± 12) ± E01 (E13 ± 7)W±G ±W±BIG switch ON8 to 14
VG (E12 ± 24) ± EVG (E12 ± 32)G ±L±YIdling, A/C switch OFF1.1 to 1.5
OX1A (E12 ± 23) ± E2 (E13 ± 28)B ±BRMaintain engine speed at 2,500 rpm for 2 min. after warning upPulse generation
(See page 05±91)
THW (E13 ± 19) ± E2 (E13 ± 28)B±W ± BRIdling, Engine coolant temp. at 80
C (176
F)0.2 to 1.0
G2 (E13 ± 26)
± NE± (E13 ± 34)W ± RIdlingPulse generation
(See page 05±84)
NE+ (E13 ± 27) ± NE± (E13 ± 34)G ± RIdlingPulse generation
(See page 05±84)
THA (E13 ± 20) ± E2 (E13 ± 28)G±R ± BRIdling, intake air temp. at 20
C (68
F)0.5 to 3.4

0505N±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)
05±4
± DIAGNOSTICSSFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

05C6L±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)
05±148
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
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
± DIAGNOSTICSSFI SYSTEM (1ZZ±FE/3ZZ±FE)
05±139
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 illuminatedStart inspection from step 3
05C6J±01

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).

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.

± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±305
AVENSIS REPAIR MANUAL (RM1018E)Hand±held Tester DisplayDiagnostic Note Normal Condition *
1Measurement Item/Range
(Display)
ELECT LOAD SIGElectrical load signal/
ON or OFF
Tail light switch ON: ON

Defogger switch ON: ON

STOP LIGHT SWStop light switch/
ON or OFF
Brake pedal depressed: ON

Brake pedal released: OFF

PS OIL PRESS SWPower steering signal/
ON or OFF

While turning the steering wheel:
ON

While not turning the steering
wheel: OFF
The idle±up control is performed
when PS is ON.
PS SIGNALPower steering signal/
ON or OFFWhen the steering wheel is turned:
ONThis signal is usually ON status
until the IG switch is turned OFF.
SCV VSVVSV status for intake air control
valve/ ON or OFFVSV operation: ON

FUEL PUMP / SPDFuel pump/speed status/
ON/H or OFF/M,LIdling: ON

EVAP VSVVSV status for EVAP control/
ON or OFFVSV operating: ONVSV for EVAP is controlled by the
ECM (ground side duty control)
VVT CTRL B1VVT control status (bank 1)/
ON or OFFVVT system operation: ON

IGNITIONIgnition counter/ Min.: 0, Max.: 4000 to 400

CYL #1, #2, #3, #4Misfire ratio of the cylinder 1 to 4/
Min.: 0 %, Max.: 50 %0 %This item is displayed in only idling
MISFIRE RPMEngine RPM for first misfire range/
Min.: 0 rpm, Max.: 6,375 rpmMisfire 0: 0 rpm

FC TAUFuel Cut TAU: Fuel cut during very
light load/ ON or OFFFuel cut operating: ON
The fuel cut is being performed un-
der very light load to prevent the
engine combustion from becoming
incomplete.
CHECK MODECheck mode/ ON or OFFCheck mode ON: ONSee step 3
O2 RL B1 S2
Oxygen sensor rich lean bank 1
sensor 2:
Response time for oxygen sensor
output to switch from rich to lean/
Min.: 0 ms, Max.: 16,702.5 ms
Idling after warming up:
O2 RL B2 S2
Oxygen sensor rich lean bank 2
sensor 2:
Response time for oxygen sensor
output to switch from rich to lean/
Min.: 0 ms, Max.: 16,702.5 ms
Idling after warming u:
0 to 1,000 msec.

MIL ON RUN DIST
Distance since activation of check
engine warning light/
Min.: 0 km, Max.: 65,535 km
When there is no DTC: 0 km

FUEL PRESS
Fuel high pressure inside fuel de-
livery pipe/
Min.: 0 MPa, Max.: 819 MPa
Idling: 8 to 13 MPa

Running without load (3,000
rpm): 9.5 to 10.5 MPa


*1: If no conditions are specifically stated for ºldlingº, it means the shift lever is at the N or P position, the A/C
switch is OFF and all accessory switches are OFF.
*
2: For A/T only