transmission TOYOTA AVALON 2001 Service User Guide
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Page 982 of 1897
A07628
ON
RSOE4 Connector
(+) (-)
- DIAGNOSTICSENGINE
DI-103
259 Author: Date:
2001 AVALON (RM808U)
1 Check idle speed.
When using TOYOTA hand-held tester:
PREPARATION:
(a) Warm up the engine to normal operating temperature.
(b) Switch off all the accessories.
(c) Switch off the A/C.
(d) Shift transmission into the N range or neutral position.
(e) Connect the TOYOTA hand-held tester to the DLC3 on the vehicle and select the ACTIVE TEST
mode.
CHECK:
Check the difference of the engine speed between the ones, less than 5 sec. and more than 5 sec. after
switching the TE1 from OFF to ON by the TOYOTA hand-held tester.
OK:
Difference of engine speed: More than 100 rpm
When not using TOYOTA hand-held tester:
PREPARATION:
(a) Warm up the engine to normal operating temperature.
(b) Switch off all the accessories.
(c) Switch off the A/C.
(d) Shift transmission into the N range or neutral position.
(e) Connect the OBDII scan tool to DLC3 on the vehicle.
(f) Using SST, connect terminals TE1 and E1 of the DLC1.
SST 09843-18020
CHECK:
Check the difference of engine speed between the ones, less than 5 sec. and more than 5 sec. after connect-
ing terminals TE1 and E1 of the DLC1.
OK:
Difference of engine speed: More than 100 rpm
OK Go to step 6.
NG
2 Check voltage between terminal RSO of ECM connector and body ground.
PREPARATION:
(a) Remove the glove compartment (See page SF-83).
(b) Disconnect the E4 connector from the ECM.
(c) Turn the ignition switch ON.
CHECK:
Measure the voltage between terminal RSO of the ECM con-
nector and body ground.
OK:
Voltage: 9 - 14 V
Page 1039 of 1897
A04550
DLC3
1
234
56
7
8
9
10 11 12 13 1415
16
S05349
- DIAGNOSTICSENGINE
DI-5
161 Author: Date:
2001 AVALON (RM808U)
(b) Check the DLC3.
The vehicle's ECM uses ISO 9141-2 for communication.
The terminal arrangement of DLC3 complies with SAE
J1962 and matches the ISO 9141-2 format.
Terminal No.Connection/Voltage or ResistanceCondition
7Bus Line/Pulse generationDuring transmission
4Chassis Ground e Body Ground/1 W or lessAlways
5Signal Ground e Body Ground/1 W or lessAlways
16Battery Positive e Body Ground/9 - 14 VAlways
HINT:
If your display shows UNABLE TO CONNECT TO VEHICLE
when you have connected the cable of the OBD II scan tool or
TOYOTA hand-held tester to the DLC3, turned the ignition
switch ON and operated the scan tool, 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 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 light up, troubleshoot the combination meter
(See page BE-53).
(2) When the engine started, the MIL should go off. If
the lamp remains on, the diagnosis system has de-
tected a malfunction or abnormality in the system.
(b) Check the DTC.
NOTICE:
If there is no DTC in the normal mode, check the 1st
trip DTC using Continuous Test Results function
(Mode 7 for SAE J1979) or the OBD II scan tool or TOY-
OTA hand-held tester.
Page 1041 of 1897
FI3605
Flashing
ON
OFF
0.13 Seconds
- DIAGNOSTICSENGINE
DI-7
163 Author: Date:
2001 AVALON (RM808U)
NOTICE:
If the TOYOTA hand-held tester switches the ECM from the
normal mode to the check mode or vice-versa, or if the
ignition switch is turned from ON to ACC or OFF during the
check mode, the DTCs and freezed frame data will be
erased.
3. INSPECT DIAGNOSIS (Check Mode)
HINT:
TOYOTA hand-held tester only:
Compared to the normal mode, the check mode has an in-
creased sensitivity to detect malfunctions.
Furthermore, the same diagnostic items which are detected in
the normal mode can also be detected in the check mode.
Check the DTC.
(1) Initial conditions.
Battery positive voltage 11 V or more
Throttle valve fully closed
Transmission in P or N position
A/C switched OFF
(2) Turn the ignition switch OFF.
(3) Prepare the TOYOTA hand-held tester.
(4) Connect the TOYOTA hand- held tester to the
DLC3 at the lower center of the instrument panel.
(5) Turn the ignition switch ON and push the TOYOTA
hand-held tester switch ON.
(6) Switch the TOYOTA hand-held tester from the nor-
mal mode to the check mode (Check that the MIL
flashes.).
NOTICE:
If the TOYOTA hand-held tester switches the ECM from the
normal mode to the check mode or vice-versa, or if the
ignition switch is turned from ON to ACC or OFF during the
check mode, the DTC and freezed frame data will be
erased.
(7) Start the engine (The MIL goes out after the engine
start.).
(8) Simulate the conditions of the malfunction de-
scribed by the customer.
NOTICE:
Leave the ignition switch ON until you have checked the
DTC, etc.
(9) After simulating the malfunction conditions, use the
TOYOTA hand-held tester diagnosis selector to
check the DTC and freezed frame data, etc.
Page 1043 of 1897
P00495
Outside
Inside
- DIAGNOSTICSENGINE
DI-9
165 Author: Date:
2001 AVALON (RM808U)
NO Proceed to page ST-18, and continue to trouble-
shoot.
YES
3 Does engine start?
NO Go to step 7.
YES
4 Check air filter.
PREPARATION:
Remove the air filter.
CHECK:
Visually check that the air filter is not dirty or excessive oily.
HINT:
If necessary, clean the air filter with compressed air. First blow
from inside thoroughly, then blow from outside of the air filter.
NG Repair or replace.
OK
5 Check idle speed.
PREPARATION:
(a) Warm up the engine to normal operating temperature.
(b) Switch off all the accessories.
(c) Switch off the A/C.
(d) Shift the transmission into the N position.
(e) Connect the OBD II scan tool or TOYOTA hand-held tester to the DLC3 on the vehicle.
CHECK:
Use the CURRENT DATA to check the idle speed.
OK:
Idle speed: 650 - 750 rpm
NG Proceed to problem symptoms table on page
DI-22.
Page 1044 of 1897
A00209
DLC1
TE1
E1
SST
DLC1
P12915
P12952
A02330
DI-10
- DIAGNOSTICSENGINE
166 Author: Date:
2001 AVALON (RM808U)
OK
6 Check ignition timing.
PREPARATION:
(a) Warm up engine to normal operating temperature.
(b) Switch off all the accessories.
(c) Switch off the A/C.
(d) Shift the transmission into the N position.
(e) Keep the engine speed at idle.
(f) Using SST, connect terminals TE1 and E1 of the DLC1.
SST 09843-18020
(g) Using a timing light, connect the tester to check wire.
CHECK:
Check the ignition timing.
OK:
Ignition timing: 10° BTDC at idle
NG Proceed to page IG-1, and continue to trouble-
shoot.
OK
Proceed to problem symptoms table on page
DI-22.
7 Check fuel pressure.
PREPARATION:
(a) Be sure that enough fuel is in the tank.
(b) Connect the TOYOTA hand-held tester to the DLC3.
(c) Turn the ignition switch ON and push TOYOTA hand-held
tester main switch ON.
(d) Use the ACTIVE TEST mode to operate the fuel pump.
(e) If you have no TOYOTA hand-held tester, connect the
positive (+) and negative (-) leads from the battery to the
fuel pump connector (See page SF-6).
CHECK:
Check that the pulsation damper screw rises up when the fuel
pump operates.
NG Proceed to page SF-6, and continue to trouble-
shoot.
Page 1050 of 1897
- DIAGNOSTICSENGINE
DI-21
177 Author: Date:
2001 AVALON (RM808U) EVP1 (E5-7) - E01 (E4-21)
B-R eW-BIG switch ON9 - 14
CCV (E8-10) - E01 (E4-21)G eW-BIG switch ON9 - 14
RSO (E4-26) - E01 (E4-21)G-B eW-BIG switch ON, Disconnect E11 connector from ECM9 - 14
OXS (E7-8) - E1 (E5-17)B eBRMaintain engine speed at 2,500 rpm for 3 min. after warming upPulse generation
(See page DI-71)
HTS (E7 9) E03 (E4 30)LGWBIdlingBelow 3.0HTS (E7-9) - E03 (E4- 30)LG eW-BIG switch ON9 - 14
KNKR (E4-27) - E1 (E5-17)W eBRIdliPulse generation
KNKL (E4-28) - E1 (E5-17)W eBRIdlingPulse generation
(See page DI-64)
NSW (E7 20) E1 (E5 17)BWBRIG switch ON, Other shift position in P, N9 - 14NSW (E7-20) - E1 (E5-17)B-W eBRIG switch ON, Shift position in P, N0
TACH (E7-27) - E1 (E5-17)B eBRIdlingPulse generation
TBP (E7-3) - E01 (E4-21)P-B eW-BIG switch ON, Disconnect vacuum hose from vapor pressure
sensor9 - 14
PTNK (E8 17) E2 (E5 18)PWIG switch ON2.9 - 3.7PTNK (E8-17) - E2 (E5-18)P eWIG switch ON, Apply vacuum 4.0 kPa (30 mmHg, 1.18 in.Hg)0.5 or less
SIL (E8-4) - E1 (E5-17)W eBRDuring transmissionPulse generation
STP (E8 15) E1 (E5 17)GWBRIG switch ON, Brake pedal depressed7.5 - 14STP (E8-15) - E1 (E5-17)G-W eBRIG switch ON, Brake pedal releasedBelow 1.5
AFR+ (E5-11) - E1 (E5-17)B-R eBRIG it h ON30 36AFL+ (E5-12) - E1 (E5-17)B-W eBRIG switch ON3.0 - 3.6
AFR- (E5-20) - E1 (E5-17)BR eBRIG it h ON27 33AFL- (E5-21) - E1 (E5-17)L eBRIG switch ON2.7 - 3.3
HAFR (E5-3) - E04 (E5-1)B-R eW-BIdlingBelow 3.0HAFR (E5 3) E04 (E5 1)
HAFL (E5-4) - E05 (E5-8)
BR eWB
B-R eW-BIG switch ON9 - 14
KSW (E7 23) E1 (E5 17)RYBRAt time of inserting keyBelow 1.5KSW (E7-23) - E1 (E5-17)R-Y eBRIn condition without key inserted4 - 5
CODE (E7-28) - E1 (E5-17)P-G eBRAt time of inserting keyPulse generation
IGSW (E8-2) - E1 (E5-17)B-O eBRIG switch ON9 - 14
TXCT (E7-18) - E1 (E5-17)L-Y eBRAt time of inserting keyPulse generation
IMLD (E8-22) - E1 (E5-17)V-W eBRIn condition without key insertedPulse generation
MREL (E8-8) - E1 (E5-17)L-O eBRIG switch ON9 - 14
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 1286 of 1897
EM0CB-03
A10537
CO/HC Meter
- ENGINE MECHANICALCO/HC
EM-1
985 Author: Date:
2001 AVALON (RM808U)
CO/HC
INSPECTION
HINT:
This check is used only to determine whether or not the idle CO/
HC complies with regulations.
1. INITIAL CONDITIONS
(a) Engine at normal operating temperature
(b) Air cleaner installed
(c) All pipes and hoses of air induction system connected
(d) All accessories switched OFF
(e) All vacuum lines properly connected
(f) SFI system wiring connectors fully plugged
(g) Ignition timing check correctly
(h) Transmission in neutral position
(i) Tachometer and CO/HC meter calibrated by hand
2. START ENGINE
3. RACE ENGINE AT 2,500 RPM FOR APPROX. 180 SE-
CONDS
4. INSERT CO/HC METER TESTING PROBE AT LEAST
40 cm (1.3 ft) INTO TAILPIPE DURING IDLING
5. IMMEDIATELY CHECK CO/HC CONCENTRATION AT
IDLE AND/OR 2,500 RPM
HINT:
When doing the 2 mode (2,500 rpm and idle) test, follow the
measurement order prescribed by the applicable local regula-
tions.
Page 1374 of 1897
EM0CF-02
EM-12
- ENGINE MECHANICALIDLE SPEED
996 Author: Date:
2001 AVALON (RM808U)
IDLE SPEED
INSPECTION
1. INITIAL CONDITIONS
(a) Engine at normal operating temperature
(b) Air cleaner installed
(c) All pipes and hoses of air induction system connected
(d) All accessories switched OFF
(e) All vacuum lines properly connected
(f) SFI system wiring connectors fully plugged
(g) Ignition timing check correctly
(h) Transmission in neutral position
(i) Air conditioning switched OFF
2. CONNECT TOYOTA HAND-HELD TESTER OR OBDII SCAN TOOL (See page EM-10)
3. INSPECT IDLE SPEED
(a) Race the engine speed at 2,500 rpm for approx. 90 seconds.
(b) Check the idle speed.
Idle speed: 650 ± 50 rpm
If the idle speed is not as specified, check the IAC valve and air intake system.
4. DISCONNECT TOYOTA HAND-HELD TESTER OR OBDII SCAN TOOL
Page 1375 of 1897
A10518
5 mm
Hexagon
Wrench
EM15O-01
A10838
TOYOTA
Hand-Held Tester
DLC3
A10536
Lead Wire
A07285
E1DLC1
TE1
DLC1SST
A05184
EM-10
- ENGINE MECHANICALIGNITION TIMING
994 Author: Date:
2001 AVALON (RM808U)
IGNITION TIMING
INSPECTION
1. REMOVE V-BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 3 cap nuts.
(b) Loosen the V-bank cover fastener counterclockwise.
(c) Remove the V-bank cover.
2. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
3. CONNECT TOYOTA HAND-HELD TESTER OR OBDII
SCAN TOOL
(a) Connect the TOYOTA hand-held tester or OBDII scan
tool to the DLC3.
(b) Please refer to the TOYOTA hand-held tester or OBDII
scan tool operator's manual for further details.
4. CONNECT TIMING LIGHT TO ENGINE
Connect the clip of a timing light to the lead wire as shown.
5. CHECK IDLE SPEED
(a) Race the engine speed at 2,500 rpm for approx. 90 se-
conds.
(b) Check the idle speed.
Idle speed: 650 ± 50 rpm
6. INSPECT IGNITION TIMING
(a) Using SST, connect terminals TE1 and E1 of the DLC1.
SST 09843-18020
(b) Using a timing light, check the ignition timing.
Ignition timing: 8 - 12° BTDC @ idle
(Transmission in neutral position)
(c) Remove the SST from the DLC1.
SST 09843-18020