engine TOYOTA AVALON 2001 Service Repair Manual
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 2001, Model line: AVALON, Model: TOYOTA AVALON 2001Pages: 1897, PDF Size: 26.61 MB
Page 1063 of 1897
DI1AJ-18
Vehicle Brought to Workshop
Customer Problem Analysis
Check and Clear DTC (Pre check)Items inside
are titles of pages in this manual,
with the page number in the bottom portion. See
the pages for detailed explanations.
Problem Symptom ConfirmationSymptom Simulation
Symptom
does not occur
Symptom
occurs
DTC Check
Circuit Inspection and Part Inspection
DTC ChartMalfunction codeProblem Symptoms Table
Identification of Problem
Normal code
Repair
Confirmation Test
End
1
2
3
4
5
67
8
9
10
Step 2, 5 :Diagnostic steps permitting the use of the
hand-held tester or break-out-box.
P. DI-598
P. DI-599
P. IN-20
P. DI-604
P. DI-601
P. DI-605 - DI-613 P. DI-601
- DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI-597
753 Author: Date:
2001 AVALON (RM808U)
ENGINE IMMOBILISER SYSTEM
HOW TO PROCEED WITH TROUBLESHOOTING
Troubleshoot in accordance with the procedure on the following pages.
Page 1064 of 1897
DI1AN-06
I12540
Engine Room Junction Block
EFI Fuse
Instrument Panel Junction Block
IGN FuseECMIgnition Switch Assembly
Transponder Key Amplifier
Transponder Key Coil
Key Unlock Warning Switch
Security Indicator
DI-602
- DIAGNOSTICSENGINE IMMOBILISER SYSTEM
758 Author: Date:
2001 AVALON (RM808U)
PARTS LOCATION
Page 1065 of 1897
DI6LA-01
F07887DLC3Hand-held
Tester
N09214
DLC3
- DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI-599
755 Author: Date:
2001 AVALON (RM808U)
PRE-CHECK
1. DIAGNOSIS SYSTEM
(a) Description
ECM controls the function of immobiliser on this vehicle.
Data of the immobiliser or DTC can be read form DLC3 of
the vehicle. When a trouble occurs on immobiliser, check
engine warning light does not light up but DTC inspection
is performed.
Therefore when there seems to be a trouble on immobilis-
er, use hand-held tester or SST to check and trouble-
shoot it.
(b) Check the DLC3.
The vehicle's ECM uses ISO 14230 for communication.
The terminal arrangement of DLC3 complies with SAE
J1962 and matches the ISO 14230 format.
Terminal No.Connection / Voltage or ResistanceCondition
7Bus Line / Pulse generationDuring transmission
4Chassis Ground e Body Ground / 1 W or lessAlways
16Battery Positive e Body Ground / 9 ~ 14 VAlways
HINT:
If your display shows ºUNABLE TO CONNECT TO VEHICLEº
when you have connected the cable of the 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.
Page 1066 of 1897
DI-600
- DIAGNOSTICSENGINE IMMOBILISER SYSTEM
756 Author: Date:
2001 AVALON (RM808U)
2. INSPECT DIAGNOSIS (Normal Mode)
(a) Check the DTC using hand-held tester.
NOTICE:
Hand- held tester only: When the diagnosis system is
switched from normal mode to check mode, it erases all
DTCs and freezed frame data recorded in normal mode. So
before switching modes, always check the DTCs and
freezed frame data, and note them down.
(1) Prepare the hand-held tester.
(2) Connect the hand-held tester to DLC3.
(3) Turn the ignition switch ON and push the hand-held
tester main switch ON.
(4) Use the hand-held tester to check the DTCs and
freezed frame data, note them down. (For operating
instructions, see the hand-held tester instruction
book.)
(5) See page DI-601 to confirm the details of the DTCs.
(b) Clear the DTC.
The following operations will erase the DTCs and freeze
frame data.
(1) Operating the OBD ll scam tool (complying with
SAEJ1978) or hand-held tester to erase the codes.
(See the OBD ll scan tool's instruction book for op-
erating instructions.)
(2) Disconnecting the battery terminals or EFI fuse.
Page 1067 of 1897
DI1AP-17
DI-604
- DIAGNOSTICSENGINE IMMOBILISER SYSTEM
760 Author: Date:
2001 AVALON (RM808U)
PROBLEM SYMPTOMS TABLE
SymptomSuspect AreaSee page
Immobiliser is not set.
(Engine starts with key codes other than the registered key code.)1. ECMIN-30
Engine does not start.
1. Key
2. Wire harness
3. Transponder key coil
4. Amplifier
5. ECM*1
IN-30
DI-613
IN-30
Security indicator is always ON.
1. Security indicator
2. Wire harness
3. ECM*2
IN-30
IN-30
Security indicator is always ON.
(Although code has been registered in the automatic registration
mode, indicator is not OFF.)1. Wire harness
2 Transponder key coil
3. Amplifier
4. ECMIN-30
DI-613
IN-30
Security indicator is OFF.
(When DTC of immobiliser is output)
1. Wire harness
2 Transponder key coil
3. Amplifier
4. ECMIN-30
DI-613
IN-30
Security indicator is OFF.
(When DTC of immobiliser is not output)1. Wire harness
2. ECMIN-30
IN-30
Security indicator is abnormally blinking.1. Wire harness
2. ECMIN-30
IN-30
*1 : Check that the key which did not start the engine has been registered and that it is possible to start with
other already registered key.
*2 : Finish the automatic registration mode because the mode might still remain.
Page 1068 of 1897
DI6LB-01
D01054
E4
E5
E7E8 E6
- DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI-603
759 Author: Date:
2001 AVALON (RM808U)
TERMINALS OF ECM
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
CODE e E1
(E7-28 e E5-17)P-G e BRIgnition Switch ON10 - 14
TXCT e E1
(E7-18 e E5-17)L-Y e BRIgnition Switch ON10 - 14
IGSW e E1
(E8-2 e E5-17)B-O e BRIgnition Switch ON10 - 14
RXCK e E1
(E7-19 e E5-17)L-O e BRIgnition Switch ON10 - 14
Page 1072 of 1897
I13626
SGND
SYSB J14
J/C
25 19
3C5
FL MAIN
BatteryEngine Room J/B J/B No. 3
IHP21
P21
W-G
DCC ECU-B
FL BlockB
BR BRB 9
BC1
BR 9
IA1
BR
J13
J/C A
A3E14
W-G W-G5
BC1
Driver Side J/B
1B9
1J9
W-L
2C1
2G2
B
F71
F61
B
BRPower Seat ECU
- DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)DI-497
653 Author: Date:
2001 AVALON (RM808U)
ECU Power Source Circuit
CIRCUIT DESCRIPTION
This circuit provides power for ECU operation and is also the power source for the sensor.
WIRING DIAGRAM
DI0G1-09
Page 1075 of 1897
I14526
Power Seat ECU
Battery 7
IG 13
8
R-B
43 1
FL MAIN 2
B-L AM1
B FL Block
IG
W-BR-B R-B
Ignition Switch
4
2
W-L W-L
B
ALTBC1 ID1 2
4 1D
1C 1BIG1 RELAY
GAUGE NO. 1
1
2
1
1 55
2H
2G1
F81
F6
I15 W-R
7
IF1P21
AM1 IG1 Driver Side J/B
Engine Room R/B No. 5
Engine Room J/B 3 1
1G
F10
1
W DI-508
- DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
664 Author: Date:
2001 AVALON (RM808U)
Ignition Switch Circuit
CIRCUIT DESCRIPTION
This circuit sends an ignition switch ON or OFF signal to the ECU.
WIRING DIAGRAM
DI0GF-09
Page 1094 of 1897
DI0FT-05
I12537Front Vertical MotorEngine Room Junction Block
ECU-B NO. 1 Fuse
Instrument Panel Junction Block
PWR SEAT M-Fuse
Reclining Motor
Power Seat Control ECU
Rear Vertical
Motor
Slide MotorLumbar Support Switch
Seat Memory Switch
Power Seat Control Switch DI-490
- DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
646 Author: Date:
2001 AVALON (RM808U)
PARTS LOCATION
Page 1203 of 1897
H02750
Airbag Sensor Assembly Front Airbag Sensor (LH)
+SL
-SL C615
26 2
1 +SL
IF2
-SL21
C6 BR BRW-R W-R
IF2
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-467
623 Author: Date:
2001 AVALON (RM808U)
DTC B1158/B1159/16 Front Airbag Sensor (LH) Malfunction
CIRCUIT DESCRIPTION
The front airbag sensor (LH) circuit consists of the airbag sensor assembly and front airbag sensor (LH).
For details of the function of each component, see OPERATION on page RS-3.
DTC B1158/B1159/16 is recorded when malfunction is detected in the front airbag sensor (LH) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1158/B1159/16Front airbag sensor (LH) malfunction
Front airbag sensor (LH)
Wire harness
Airbag sensor assembly
Engine room main wire harness
WIRING DIAGRAM
DI6N3-01