2005 TOYOTA AVENSIS service

3 2 1 45678
9 1 0 111 21 31 41 51 6
DLC33 2 1 45678
9 1 0 111 21 31 41 51 6
DLC3
A04550
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±297
AVENSIS REPAIR MANUAL (RM1018E)
(c) Check the DLC3.
The vehicle's ECM uses the ISO 9141±2 (Euro±OBD)/
ISO 14230(M±OBD) communication protocol. The termi-
nal arrangement of the DLC3 complies with ISO
15031±03 and matches the ISO 9141±2/ ISO 14230 for-
mat.
SymbolTerminal No.Connection/Voltage or ResistanceCondition
SIL7Bus + Line/Pulse generationDuring transmission
CG4Chassis Ground ± Body Ground/1
or lessAlways
SG5Signal Ground ± Body Ground/1
or lessAlways
BAT16Battery 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 Department listed in the
tool's instruction manual.
(d) Inspect the battery voltage.
Battery voltage: 11 to 14 V
If voltage is below 11 V, recharge the battery before proceeding.
(e) Check the CHK ENG.
(1) The CHK ENG lamp comes on when the ignition
switch is turned ON and the engine is not running.
HINT:
If the CHK ENG is not illuminated, troubleshoot the combination
meter.
(2) When the engine is started, the CHK ENG should
go 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 (test) 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 note them down.

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.

F45088GNDGND
F45088GNDGNDWA
05±740
±
DIAGNOSTICS ABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
4INSPECT SKID CONTROL ECU CONNECTOR(GND TERMINAL CONTINUITY)
(a)Measure resistance between terminal GND of the skid control ECU harness side connector and body ground.
Resistance: 1
or less
NGREPAIR OR REPLACE HARNESS OR CONNECTOR(GND TERMINAL ± BODY
GROUND)(See page 01±32)
OK
CHECK AND REPAIR HARNESS AND CONNECTOR(BATTERY ± IG1 TERMINAL)
(See page 01±32)
5INSPECT COMBINATION METER(ABS WARNING LIGHT)
(a)Disconnect the skid control ECU connector.
(b)Using service wire, connect terminals WA and GND of the skid control ECU harness side connector.
(c)Turn the ignition switch ON. OK:
ABS warning light goes off.
NGREPAIR OR REPLACE COMBINATION METER
OK
REPLACE BRAKE ACTUATOR ASSY(See page 32±54)

D25148
DLC3 12345 768
9 1 0111 21 3 1 514 16
FI2547
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))05±865
AVENSIS REPAIR MANUAL (RM1018E)
(c) Inspect the DLC3.
(1) The vehicle's ECM uses the ISO 9141±2 (Euro±
OBD)/ISO 14230 (M±OBD) communication proto-
col. The terminal arrangement of DLC3 complies
with ISO 15031±3 and matches the ISO
9141±2/ISO 14230 format.
Terminal No.ConnectionVoltage or ResistanceCondition
7Bus
LinePulse generationDuring communication
4Chassis Ground
Body Ground / 1
or lessAlways
16Battery Positive
Body Ground / 9 ± 14 VAlways
HINT:
If your display shows ºUNABLE TO CONNECT TO VEHICLEº
when you have connected the cable of hand±held tester to
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 DLC3 on the original vehicle.

If communication is still not possible when the tool is con-
nected to another vehicle, the problem is probably in the
tool itself, so consult the Service Department listed in the
tool's instruction manual.
2. INSPECT DIAGNOSIS (NORMAL MODE)
(a) Check the MIL.
(1) The MIL comes on when the ignition switch is turned
ON and the engine is not running.
HINT:
If the MIL does not come on, troubleshoot the combination me-
ter.
(2) When the engine is started, the MIL should go off.
If the light remains on, the diagnosis system has de-
tected a malfunction or abnormality in the system.
(b) Check the DTC, using the hand±held tester.
NOTICE:
Hand±held tester only:
When the diagnostic system is switched from normal mode
to check (test) mode, it erases all DTCs and freeze frame
data recorded in normal mode. So before switching modes,
always check the DTCs and freeze frame data, and note
them down.

D25148
DLC3 12345 768
9 1 0111 21 3 1 514 16
FI2547
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))05±921
AVENSIS REPAIR MANUAL (RM1018E)
(6) *2 trip detection logic:
When a malfunction is first detected, the malfunc-
tion code is temporarily 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 (MIL) to illumenate (2nd trip)
(However, the ignition switch must be turned OFF
between the 1st trip and the 2nd trip.).
(b) Inspect the DLC3.
(1) The vehicle's ECM uses ISO 9141±2 (Euro±OBD)
communication protocol. The terminal arrangement
of DLC3 complies with ISO 15031±3 and matches
the ISO 9141±2 format.
Terminal No.ConnectionVoltage or ResistanceCondition
7Bus
LinePulse generationDuring communication
4Chassis Ground
Body Ground / 1
or lessAlways
16Battery Positive
Body Ground / 9 to 14 VAlways
HINT:
If your display shows ºUNABLE TO CONNECT TO VEHICLEº
when you have connected the cable of hand±held tester to
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 DLC3 on the original vehicle.

If communication is still not possible when the tool is con-
nected to another vehicle, the problem is probably in the
tool itself, so consult the Service Department listed in the
tool's instruction manual.
2. INSPECT DIAGNOSIS (NORMAL MODE)
(a) Check the MIL.
(1) The MIL comes on when the ignition switch is turned
ON and the engine is not running.
HINT:
If the MIL does not come on, troubleshoot the combination me-
ter.
(2) When the engine is started, the MIL should go off.
If the light remains on, the diagnosis system has de-
tected a malfunction or abnormality in the system.

F44851
E14PGND
F44869
E15WL
±
DIAGNOSTICS ELECTRONIC MOTOR POWER STEERING SYSTEM
05±1083
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
NOTICE:
When performing the inspection of power steering ECU, ECU must be instal\
led to the vehicle or fully
fixed.
1CHECK HARNESS AND CONNECTOR(POWER STEERING ECU ASSY ±
COMBINATION METER ASSY)
(a)Check for an open or short circuit in harness and connector between power ste\
ering ECU assy and
combination meter assy (See page 01±32).
NGREPAIR OR REPLACE HARNESS ORCONNECTOR
OK
2CHECK HARNESS AND CONNECTOR(POWER STEERING ECU ASSY ± BODY GROUND)
(a)Disconnect the E14 connector from the power steering
ECU assy.
(b)Check the continuity between the terminal PGND of the
E14 connector and body ground.
Standard:
Continuity
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
3INSPECT POWER STEERING ECU ASSY
(a)Turn the ignition switch ON.
(b)Disconnect the E15 connector from the power steering ECU assy, and check the P/S warning light comes on.
(c)Using a service wire, ground the terminal WL of the E15 connector, and check the P/S warning light goes off.
Standard:
P/S warning light comes on and then goes off
NGREPLACE POWER STEERING ECU ASSY (See page 50±20)
OK
CHECK GO TO COMBINATION METER SYSTEM








\b

H42104
D SquibAirbag
Sensor
Assy
Center
D±D+Spiral
Cable
Sub±assy
Color: Orange
TC
CG
DLC3 DTC B0101/14
Service Wire
C
D
E
F
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1203
AVENSIS REPAIR MANUAL (RM1018E)
2CHECK AIR BAG SENSOR ASSY CENTER
(a)Connect the connector to the airbag sensor assy center.
(b)Using a service wire, connect D+ and D± of the connector
ºEº.
NOTICE:
Do not forcibly insert a service wire into the terminal of the
connector when connecting.
(c)Connect the negative (±) terminal cable to the battery, and wait for at least 2 seconds.
(d)Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(e)Clear the stored DTCs in the memory (See page
05±1184).
(f) Turn the ignition switch to the LOCK position.
(g) Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(h)Check the DTCs (See page 05±1184).
OK:
DTC B0101/14 is not output.
HINT:
Codes other than code B0101/14 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK

05C5V±01
3
2
145678
910111213141516
DLC3
A04550
C93955
05±1184
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PRE±CHECK
1.DIAGNOSIS SYSTEM
(a)Check the DLC3. (1)The vehicle's ECM conforms to ISO 9141±2 forcommunication protocol. The terminal arrangement
of the DLC3 complies with ISO 15031±3 and meets
the ISO 9141±2 format.
Terminal No.Connection/Voltage or ResistanceCondition
7Bus + Line/Pulse generationDuring Transmission
4Chassis Ground
Body Ground/1
or lessAlways
16Battery Positive
Body Ground/9 ± 14 VAlways
HINT:
If the display shows UNABLE TO CONNECT TO VEHICLE
when you connect the cable of the hand±held tester to the
DLC3, turn the ignition switch to the ON position and operate
the hand±held tester, there is a problem either 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 not possible when the tool is con-
nected to another vehicle, the problem is probably in the
tool itself, so consult the Service Department listed in the
tool's instruction manual.
2.SRS WARNING LIGHT CHECK
(a)Turn the ignition switch to the ON position, and check that the SRS warning light comes on.
(b)Check that the SRS warning light goes off after approx.
6 seconds.
HINT:

When the ignition switch is ON position and the SRS
warning light remains on or flashes, the airbag sensor
assy center detects a malfunction code.

When the SRS warning light comes on even when the
ignition switch is in the LOCK position, trouble in the pow-
er source or combination meter assy is suspected. Pro-
ceed to ºSRS warning light circuit malfunction (Always
lights up, when ignition switch is LOCK position)º on page
05±1386.

When the ignition switch is turned from the LOCK to ON
position, the SRS warning light does not come on. Pro-
ceed to ºSRS warning light circuit malfunction (Does not
light up, when ignition switch is turned ON)º on page
05±1389.