2005 TOYOTA AVENSIS check engine light

A57103
Plate Washer
Hexagon
Wrench
(8mm)
A62592
SST
B08252
B09792
Spring
Convex
14±18
± ENGINE MECHANICALPARTIAL ENGINE ASSY (1CD±FTV)
1CD±FTV ENGINE REPAIR MANUAL (RM927E)
46. INSTALL TIMING BELT IDLER SUB±ASSY NO.1
(a) Using an hexagon wrench (8mm), install the plate washer
and idler pulley with the idler pulley shaft.
Torque: 35 N
m (350 kgf
cm, 25 ft
lbf)
(b) Check that the pulley bracket moves smoothly.
47. INSTALL CAMSHAFT TIMING PULLEY
(a) Install the pulley set key to the key groove of the cam-
shaft.
(b) Align the pulley set key with the key groove of the timing
pulley, and slide on the timing pulley.
(c) Using SST, install the pulley bolt.
SST 09960±10010 (09962±01000, 09963±01000)
Torque: 88 N
m (899 kgf
cm, 65 ft
lbf)
48. INSTALL INJECTOR ASSY
(a) Install 4 new nozzle seats to the cylinder head.
(b) Set the spring to each injector.
NOTICE:
Be sure to make the opening direction of the spring and the
direction of the injector positioning convex meet.
(c) Install a new back±up ring and O±ring to each injector.
(d) Apply a light coat of oil onto O±ring for each injector.

90

180

B08307
B08311
B08312
Plug
GasketOverflow Screw
Ball Spring 14±20
± ENGINE MECHANICALPARTIAL ENGINE ASSY (1CD±FTV)
1CD±FTV ENGINE REPAIR MANUAL (RM927E)
50. INSTALL NOZZLE LEAKAGE PIPE ASSY
(a) Place the leakage pipe and 5 new gaskets.
NOTICE:
Do the installation of the gasket craw within the angle
range shown in the illustration.
(b) Apply a light coat of oil onto 4 hollow screws and union
bolt.
(c) Tighten the 4 hollow screws and union bolt by hand.
(d) Tighten the 4 hollow screws and union bolt.
Torque:
Hollow screw 18 N
m (184 kgf
cm, 13 ft
lbf)
Union bolt 22 N
m (224 kgf
cm, 16 ft
lbf)
(e) Check that there is no leak from nozzle leakage pipe con-
nection.
(1) Disconnect the fuel hose, and remove the check
valve, No. 2 nozzle leakage pipe and gasket.
(2) Purchase a new check valve.
HINT:
Part No. 23122±27010
(3) Remove the plug, gasket, spring and ball.
(4) Install the plug with the gasket to the overflow
screw.
Torque: 9.8 N
m (100 kgf
cm, 7 ft.
lbf)
(5) Install the No. 2 nozzle leakage pipe and gasket
with the check valve to the cylinder head.
Torque: 21 N
m (214 kgf
cm, 15 ft
lbf)
(6) Apply a light coat of soapy water (any fluid to detect
fuel leakage) on the nozzle leakage pipe connec-
tion.

05C66±01
FI0534
A76859
Hand±Held Tester
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
05±5
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 the vehicle to the OBD
scan tool complying with ISO 15031±4 or hand±
held tester, 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
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 (DTC) prescribed by ISO 15031±4
are recorded in the engine ECU memory (See page
05±16). If the malfunction does not reoccur in 3 con-
secutive trips, the CHK ENG goes off automatically
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 freezed 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±16).

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 pend-

A76859
Hand±Held Tester
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
05±7
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±16).
When the malfunction does not reoccur, the CHK
ENG is indicated until the ignition switch is turned
off, and then the CHK ENG is not indicated when
the ignition switch is turned on but the DTCs remain
recorded in the ECM memory.

To check the DTCs, connect the hand±held tester
to the Data Link Connector 3 (DLC3) on the vehicle
or read the DTC which is indicated on the multi in-
formation display when TC and CG terminals on the
DLC3 are connected. 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 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).

05C6M±01
FI0534
A76859
Hand±Held Tester
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
05±149
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 the vehicle to the OBD
scan tool complying with ISO 15031±4 or hand±
held tester, 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
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 (DTC) prescribed by ISO 15031±4
are recorded in the engine ECU memory (See page
05±161). 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 freezed 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±161).

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).

FI0534
05±150
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
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:
Freeze frame data records the engine condition
when a misfire (DTCs P0300 ± P0304) or fuel trim
malfunction (DTCs P0171) 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.
(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 the various data
output from the vehicle's ECM.

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±161).
When the malfunction does not reoccur, the CHK
ENG is indicated until the ignition switch is turned
off, and then the CHK ENG is not indicated when
the ignition switch is turned on but the DTCs remain
recorded in the ECM memory.

A76882
Battery
FL MAIN
IGN
B±G 11
E9
2
6
Engine
Room
J/B No.4 Engine Room
R/B No.1
and
Engine Room
J/B No.1
AM2
1 2
B±G 4
18Driver
Side J/B
B±W
B±R
WECM
DH DA
B±R
B±R
1
1A 1
1
4A
1
4B (LHD)(RHD)
IP1
IE4 1
1
I13
Ignition Switch
AM2
IG2
(LHD) J8
C
(RHD)J26
A
(LHD)J8
C
(RHD)J26
A B±WCheck
Engine
Warning
Light
W
C11
Combination Meter
22 9
J/C
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
05±515
AVENSIS REPAIR MANUAL (RM1018E)
CHECK ENGINE WARNING LIGHT CIRCUIT
CIRCUIT DESCRIPTION
If the ECM detects a trouble, it illuminates CHK ENG. At this time, the EC\
M sets 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
1CLEAR DTC
(a)Connect the hand±held tester to the DLC 3.
(b)Turn the ignition switch ON and push the hand±held tester main switch \
ON.
(c)Read the DTC (See page 05±294).
(d)Clear the DTC (See page 05±294).
(e) Check that the CHK ENG is not illuminated.
Standard: CHK ENG is not illuminated
OK REPAIR CIRCUIT INDICATED BY OUTPUTCODE (See page 05±309)
NG
05CJB±01

±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
05±475
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0724BRAKE SWITCH ºBº CIRCUIT HIGH
CIRCUIT DESCRIPTION
This STP signal is used to detect that the brakes have been applied. The STP\
signal voltage is the same
as the one supplied to the stop lights.
The STP signal is used mainly to control the fuel cut±off engine speed (The fuel cut±off engine speed is re-
duced slightly when the vehicle is braking).
DTC No.DTC Detection ConditionTrouble Area
P0724The stop light switch does not turn off even the vehicle is driv-
en. (2 trip detection logic)
Short in stop light switch signal circuit

Stop light switch

ECM
WIRING DIAGRAM
Refer to DTC P0504 on page 05±455.
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand±held tester. Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, it is useful for determi\
ning whether the vehicle was running
or stopped, the engine was warmed up or not, the air±fuel ratio was lea\
n or rich, etc. at the time of the mal-
function.
1 CHECK OPERATION OF STOP LIGHT
(a) Check if the stop lights go on and off normally when the brake pedal is operated and released.
NG REPAIR OR REPLACE STOP LAMP SWITCHCIRCUIT
OK
2 READ VALUE OF HAND±HELD TESTER(STOP LIGHT SWITCH)
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON and push the hand±held tester main switch \
ON.
(c) Select the item ºDIAGNOSIS / OBD/MOBD / DATA LIST / ALL / STOP LIGHT SWº and read its value displayed on the hand±held tester.
Result:
Brake PedalSTP Signal
DepressedON
ReleasedOFF
OK CHECK FOR INTERMITTENT PROBLEMS
NG
05CJ7±01