TOYOTA AVENSIS 2005 Service Repair Manual

N17398
Example :
HeadCapstan
Pinch Roller
BE4331
± DIAGNOSTICSAUDIO SYSTEM
05±1395
AVENSIS REPAIR MANUAL (RM1018E)
6. MAINTENANCE
Tape Player / Head Cleaning:
(a) Raise the slot cover with your finger.
Using a pencil or similar object, push in the guide.
(b) Using a cleaning pen or cotton applicator soaked in clean-
er, clean the head surface, pinch rollers and capstans.
7. MAINTENANCE
CD Player / Disc Cleaning:
If the disc gets dirty, clean the disc by wiping the surface from
the center to outside in the radial directions with a soft cloth.
NOTICE:
Do not use a conventional record cleaner or anti±static pre-
servative.
8. COMMUNICATION SYSTEM
(a) Components in the audio system communicate each other though AVC±LAN. (Radio receiver func-
tion)
(b) The master component of AVC±LAN is the radio receiver assy with a resistance (60 ± 80
), which
is necessary for communication.
(c) When short circuit or open circuit occurs in the AVC±LAN circuit, the audio system does not operate
normally due to the communication cutoff.
9. DIAGNOSIS FUNCTION
(a) The audio system has diagnosis function (The diagnosis result is displayed on the LCD of the radio
receiver assy). (Radio receiver function)
(b) The component code (physical address), or three±digit number (in hexadecimal) is set for each com-
ponent comprising AVC±LAN.
(c) The logical address, or two±digit number (in hexadecimal) is set for each function and component unit
in each component.

H43588
Driver Side J/BAirbag Sensor Assy Center
D5 DLC3
TCW−
L
J21D
J/C
(*2) TC
(*2)
W− L
(*1) J20
B
(*2)
J8
B
(*1) W−
L
DB17
DD8
J8 B
(*1) A27
19
13 W−
L
1AZ−
FSE, 1CD− FTV Engine:
CG TC TC
TC
TC
W−
L
W− L
W− L
W−
L
W−B
W−
B
W−
B
W− B
(*1)
(*2) J9 J21
DD
(*2)(*1)
DL DC
15
3
E9
S1
S2
20
17
25
(*2)
A
J16
J/C
A
(*1)
IO IP
(*3)
M1
16
4
CA
CB 3
6
(*6)
(*4, *5)
Skid Control ECU with Actuator Skid Control ECU with Actuator ECM
Multi− Display
*1: LHD *2: RHD
*3: w/ Navigation System (Map Type) *4:
1AZ− FSE
*5: 1CD− FTV (w/ VSC)
*6: 1CD− FTV (w/ ABS)
Center J/B
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05−1391
TC TERMINAL CIRCUIT
CIRCUIT DESCRIPTION
DTC output mode is set by connecting terminals TC and CG of the DLC3.
The DTCs are displayed by blinking the SRS warning light.
WIRING DIAGRAM
05C65 −01

H43587
Driver Side J/BAirbag Sensor Assy Center
D5 DLC3
TC W−
L
J8 TC
(*2)W−
L
(*1) W−
L
DB 17
DD8
B
(*1) A2719
*1: LHD W−
L
B
13
1AZ−
FE Engine:
W−L
W−
L
W−L
J8
J9 D
TCTC
TC
CG
W−
B
W− B
W− B W−
B
W−
L
M1 16
4
AJ16
J/C
A
IO IP
(*2)
(*1) (*3)
(*2)
(*3)
(*1) CA
CB 6
3 Center J/B J/C
DC
DL 3
15
E920
S2 25 ECM
Skid Control ECU with Actuator
Multi−
Display
*2: RHD
*3: w/ Navigation System (Map Type)
05−
1392
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM

H43589
Driver Side J/BAirbag Sensor Assy Center
D5 DLC3
TCW−
L
J8 TC
(*2)
(*1)
W−L
DB 17
DD8
B
(*1) A27
19
*1: LHD B
13
1ZZ−
FE, 3ZZ −FE Engine:
W−L
W−
L
W−L
J8
J9 D
TCTC
TC
CG
W−
B
W− B
W−B W−
B
M116
4
AJ16
J/C
A
IO IP
(*2)
(*1) (*2)
(*1) CA
CB 6
3 J/C
DC
DL 3
15
E920
S2 25 ECM
Skid Control ECU with Actuator Multi−Display
*2: RHD
*3: w/ Navigation System (Map Type) B
B
J20 J20
(*1)
J9D
D
D
J21 J21
(*2)
TC
W−
L
W−
B(*1)
E15 4
W−L(*1) Center J/B
(*2) (*1)(*
1) (*2)
(*3)
W−
L
(*2) W−
L
(*2)
EPS ECU
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05−1392-1
HINT:
When each warning light stays blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal
ground short in each ECU is suspected.

H40065H40173H43360
DLC3:TC
Airbag Sensor Assy Center:
TC
A27
H40173CG
DLC3
05− 1392-2
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
INSPECTION PROCEDURE
1 CHECK WIRE HARNESS(DLC3 −AIRBAG SENSOR ASSY CENTER)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the airbag sensor assy center connector.
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
DLC3 (TC) −A27−1 9 (TC)AlwaysBelow 1

NG REPAIR OR REPLACE WIRE HARNESS(TC of
DLC3−TC of AIRBAG SENSOR ASSY CENTER)
OK
2 CHECK WIRE HARNESS(CG of DLC3 −BODY GROUND)
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
DLC3 (CG) −
Body groundAlwaysBelow 1

NG REPAIR OR REPLACE WIRE HARNESS(CG of
DLC3−BODY GROUND)
OK

H40065
TC
A27
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05−1392-3
3 CHECK WIRE HARNESS(TC of AIRBAG SENSOR ASSY CENTER −BODY
GROUND)
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A27−1 9 (TC) −
Body groundAlways1 M
or Higher
NG REPAIR OR REPLACE WIRE HARNESS AND
EACH ECU
OK
REPLACE AIR BAG SENSOR ASSY CENTER

± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05±1389
AVENSIS REPAIR MANUAL (RM1018E)
SRS WARNING LIGHT CIRCUIT MALFUNCTION (DOES NOT LIGHT
UP, WHEN IGNITION SWITCH IS TURNED TO ON)
CIRCUIT DESCRIPTION
The SRS warning light is located on the combination meter assy.
When the SRS is normal, the SRS warning light comes on for approx. 6 seconds after the ignition switch
is turned from the LOCK position to the ON position, and then it turns off automatically.
If there is a malfunction in the SRS, the SRS warning light comes on to inform a trouble to the driver.
When between terminal TC and terminal CG of the DLC3 are connected, the DTC is displayed by blinking
the SRS warning light.
WIRING DIAGRAM
See page .
INSPECTION PROCEDURE
1 CHECK SOURCE VOLTAGE
(a) Measure the voltage of the battery.
OK:
Voltage: 10 to 14 V
NG HARNESS BETWEEN BATTERY AND AIRBAG
SENSOR ASSY CENTER, AND CHARGING
SYSTEM
OK
2 CHECK AIR BAG SENSOR ASSY CENTER
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the battery, and wait for at least 90 seconds.
(c) Disconnect the connectors from the airbag sensor assy center.
(d) Connect the negative (±) terminal cable to the battery, and turn the ignition switch to the ON position.
(e) Check that the SRS warning light operation.
OK:
The SRS warning light does not come on.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK
056N4±03





C81395
05±1390
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
3 CHECK WIRE HARNESS(AIRBAG SENSOR ASSY CENTER ± BODY GROUND)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Disconnect the connector from the combination meter
assy.
(d) Connect the negative (±) terminal cable to the battery,
and turn the ignition switch to the ON position.
(e) Measure the voltage between the body ground and LA of
the airbag sensor assy center connector.
OK:
Voltage: Below 1 V
NG REPAIR OR REPLACE WIRE HARNESS
OK
REPLACE COMBINATION METER ASSY

H42518
Combination Meter Assy
Driver Side J/BAirbag Sensor Assy Center
*1: LHD
*2: RHD
*3: Gasoline
*4: 1CD±FTV SRS8
C11B±Y
J16
J/C(*2)
IL 17
C1012
DA6
DDB±Y3
A27
LA
W±B
J15
J/C W±B
(*1)
A
AW±B
W±B
(*1, *4)(*1, *3)(*2) W±B
A
A J17
J/C
A
IO
IK 05±1386
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
SRS WARNING LIGHT CIRCUIT MALFUNCTION (ALWAYS LIGHT
UP, WHEN IGNITION SWITCH IS ACC OR LOCK POSITION)
CIRCUIT DESCRIPTION
The SRS warning light is located on the combination meter assy.
When the SRS is normal, the SRS warning light comes on for approx. 6 seconds after the ignition switch
is turned from the LOCK position to the ON position, and then it turns off automatically.
If there is a malfunction in the SRS, the SRS warning light comes on to inform a trouble to the driver.
When between terminal TC and terminal CG of the DLC3 are connected, the DTC is displayed by blinking
the SRS warning light.
WIRING DIAGRAM
05C64±01

H42822
C11±8




C81395
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05±1387
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 CHECK CONNECTOR
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the battery, and wait for at least 90 seconds.
(c) Check that the connection of the airbag sensor assy center connectors.
OK:
The connectors are connector.
NG CONNECT CONNECTORS
OK
2 CHECK WIRE HARNESS(COMBINATION METER ASSY ± BODY GROUND)
(a) Disconnect the connector from the combination meter
assy.
(b) Connect the negative (±) terminal cable to the battery,
and turn the ignition switch to the ON position.
(c) Measure the voltage between the body ground and termi-
nal C11±8 of the combination meter assy.
OK:
Voltage: Below 8 V
NG REPAIR OR REPLACE COMBINATION METER
ASSY
OK
3 CHECK WIRE HARNESS(AIRBAG SENSOR ASSY CENTER ± COMBINATION
METER ASSY)
(a) Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(b) Disconnect the connector from the airbag sensor assy
center.
(c) Measure the resistance between the body ground and
terminal LA of the connector on the airbag sensor assy
center side.
OK:
Resistance : 1 M
or Higher
NG REPAIR OR REPLACE WIRE HARNESS
(AIRBAG SENSOR ASSY CENTER ±
COMBINATION METER ASSY)
OK