display TOYOTA AVALON 2001 Service Manual PDF
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 2001, Model line: AVALON, Model: TOYOTA AVALON 2001Pages: 1897, PDF Size: 26.61 MB
Page 743 of 1897
D07904
18
M3V-W22 Combination
Meter
1
3F1
3C E7ECM
SPD V-W J/B No. 3
A02373
SPD
- DIAGNOSTICSAUTOMATIC TRANSAXLE
DI-179
335 Author: Date:
2001 AVALON (RM808U)
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check operation of speedometer.
CHECK:
Drive the vehicle and check if the operation of the speedometer in the combination meter is normal.
HINT:
The vehicle speed sensor is operating normally if the speedometer display is normal.
NG Check speedometer circuit.
OK
2 Check for short in harness and connector between terminal SPD of ECM and
body ground.
PREPARATION:
(a) Remove the glove compartment (See page BO-90).
(b) Disconnect the connector from ECM.
CHECK:
Check continuity between terminal SPD of ECM and body
ground.
OK:
No continuity
NG Repair or replace harness or connector.
Page 768 of 1897
DI02F-06
DI-172
- DIAGNOSTICSAUTOMATIC TRANSAXLE
328 Author: Date:
2001 AVALON (RM808U)
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the circuit listed for that code in the table below and pro-
ceed to the page given.
*: ...MIL lights up
DTC No.
(See Page)Detection ItemTrouble AreaMIL *Memory
P0500
(DI-178)Vehicle Speed Sensor Malfunc-
tion
(Vehicle Speed Sensor)
Open or short in vehicle speed sensor circuit
Vehicle speed sensor
Combination meter
ECM
Automatic transaxle (clutch, brake or gear etc.)
P0750
(DI-181)Shift Solenoid A Malfunction
(Shift Solenoid Valve No.1)Shift solenoid valve No.1 is stuck open or closed
Valve body is blocked up or stuck
Automatic transaxle (clutch, brake or gear etc.)
P0753
(DI-183)Shift Solenoid A Electrical Mal-
function
(Shift Solenoid Valve No.1)Open or short in shift solenoid valve No.1 circuit
Shift solenoid valve No.1
ECM
P0755
(DI-181)Shift Solenoid B Malfunction
(Shift Solenoid Valve No.2)Shift solenoid valve No.2 is stuck open or closed
Valve body is blocked up or stuck
Automatic transaxle (clutch, brake or gear etc.)
P0758
(DI-183)Shift Solenoid B Electrical Mal-
function
(Shift Solenoid Valve No.2)Open or short in shift solenoid valve No.2 circuit
Shift solenoid valve No.2
ECM
P0770
(DI-187)Shift Solenoid E Malfunction
(Shift Solenoid Valve SL)
Shift solenoid valve SL is stuck open or closed
Valve body is blocked up or stuck
Lock-up clutch
Automatic transaxle (clutch, brake or gear etc.)
P0773
(DI-189)Shift Solenoid E Electrical Mal-
function
(Shift Solenoid Valve SL)Open or short in shift solenoid valve SL circuit
Shift solenoid valve SL
ECM
P1520
(DI-192)Stop Light Switch Signal Mal-
functionOpen or short in stop light switch circuit
Stop light switch
ECM
P1705
(DI-193)NC2 Revolution Sensor Circuit
Malfunction
(Direct Clutch Speed Sensor)Open or short in direct clutch speed sensor circuit
Direct clutch speed sensor
ECM
P1765
(DI-195)
Linear Solenoid for Accumulator
Pressure Control Circuit Mal-
function
(Shift Solenoid Valve SLN)Open or short in shift solenoid valve SLN circuit
Shift solenoid valve SLN
ECM
P1780
(DI-199)Park/Neutral Position Switch
MalfunctionShort in park/neutral position switch circuit
Park/neutral position switch
ECM
Page 769 of 1897
DI02C-06
Mechanical System Test
P. DI-160NG
Customer Problem Analysis Vehicle Brought to Workshop
Check DTC and Freeze Frame Data (Pre-check)Items inside
P. DI-159are titles of pages in this manual, with the
page number indicated in the bottom portion. See the indicated
pages for detailed explanations.
Connect an OBD II scan tool or TOYOTA hand-held tester to DLC3.
If the display shows ºUNABLE TO CONNECT TO VEHICLEº when you have connected the
scan tool / TOYOTA hand-held tester, inspect DLC3 P. DI-160
Record or Print DTC and Freeze Frame Data P. DI-160
Clear DTC and Freeze Frame Data P. DI-160
Symptom does not occur
Problem Symptom Confirmation
P. DI-160 Symptom Simulation
Symptom occurs
P. DI-160 OK Code
DTC Check
P. DI-160
DTC Chart
P. DI-172Basic Inspection
Manual Shifting TestOK
P. DI-160NG
NG
NG NG
NG OKOK
OKOK Matrix Chart of Problem Symptoms - P. DI-175
Chapter 1
(Electronic)Chapter 2
(On-V ehicle)
P. DI-175
P. DI-175Chapter 3
(Off-V ehicle)
P. DI-175
Circuit
InspectionO/D Cancel Signal Check
O/D Main Switch & O/D OFF Indicator Light Check
P. DI-203 to DI-206
Identification of ProblemParts Inspection
End
Confirmation Test
Repair Setting the Check Mode Diagnosis P. DI-160 Visual Inspection1
5
9
16 2
6
10
15 3
7
11
14 4
8
12
13
17
DI-158
- DIAGNOSTICSAUTOMATIC TRANSAXLE
314 Author: Date:
2001 AVALON (RM808U)
AUTOMATIC TRANSAXLE
HOW TO PROCEED WITH TROUBLESHOOTING
Page 772 of 1897
N09214
- DIAGNOSTICSAUTOMATIC TRANSAXLE
DI-161
317 Author: Date:
2001 AVALON (RM808U)
The diagnosis system operates in normal mode
during normal vehicle use, and also has a check
mode for technicians to simulate malfunction symp-
toms and perform troubleshooting. Most DTCs use
2-trip detection logic(*) to prevent erroneous detec-
tion. By switching the ECM to check mode when
troubleshooting, the technician can cause the MIL
to light up and for a malfunction that is only detected
once or momentarily (TOYOTA hand-held tester)
(See page DI-160).
*2-trip detection logic:
When a logic malfunction is first detected, the mal-
function is temporarily stored in the ECM memory.
If the same malfunction is detected again during the
2nd test drive, this 2nd detection causes the MIL to
light up.
(b) Inspect 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.
Tester connectionConditionSpecified condition
7 (Bus Line) - 5 (Signal ground)During communicationPulse generation
4 (Chassis Ground) - BodyAlways1 W or less
5 (Signal Ground) - BodyAlways1 W or less
16 (B+) - BodyAlways9 - 14 V
HINT:
If your display shows ºUNABLE TO CONNECT TO VEHICLEº
when you have connected the cable of OBD II scan tool or TOY-
OTA hand-held tester to 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 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 783 of 1897
DI02I-07
- DIAGNOSTICSAUTOMATIC TRANSAXLE
DI-175
331 Author: Date:
2001 AVALON (RM808U)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the diagnostic trouble code check but the trouble still occurs, check the
circuits for each symptom in the order given in the charts on the following pages and proceed to the page
given for troubleshooting.
The Matrix Chart is divided into 3 chapters.
Chapter 1: Electronic circuit matrix chart
Chapter 2: On-vehicle repair matrix chart
Chapter 3: Off-vehicle repair matrix chart
If the instruction ºProceed to next circuit inspection shown in matrix chartº is given in the flow chart for each
circuit, proceed to the circuit with the next highest number in the table to continue the check.
If the trouble still occurs even though there are no abnormalities in any of the other circuits, then check and
replace the ECM.
Chapter 1: Electronic circuit matrix chart
SymptomSuspect AreaSee page
No up-shift (A particular gear, from 1st to 3rd gear, is not up-
shifted)ECMIN-30
No up-shift (3rd " O/D)
1. O/D main switch & O/D OFF indicator light circuit
2. O/D cancel signal circuit
3. ECMDI-206
DI-203
IN-30
No down-shift (O/D " 3rd)ECMIN-30
No down-shift (A particular gear, from 3rd to 1st gear, is not
down-shifted)ECMIN-30
No lock-up or No lock-up offECMIN-30
Shift point too high or too lowECMIN-30
Up-shift to 2nd while in L positionECMIN-30
Up-shift to 3rd while in 2 positionECMIN-30
Up-shift to O/D from 3rd while O/D main switch is OFF1. O/D main switch & O/D OFF indicator light circuit
2. ECMDI-206
IN-30
Up-shift to O/D from 3rd while engine is coldECMIN-30
Harsh engagement (N " D)ECMIN-30
Harsh engagement (Any driving position)ECMIN-30
Poor accelerationECMIN-30
Engine stalls when starting off or stoppingECMIN-30
No kick-downECMIN-30
Page 804 of 1897
I13641
P-LP-LP-LP-L
P-L
P-L
P-L 1
4F
4D
4C 11
7
1D 1J9 DOME
W-L
1
11 1
1
12C DCC
2
2G
B
F7 F6FL Block
FL MAINB
BatteryV11
Vanity Light RH
2
V10
Vanity Light RH
2W-B
W-B
2
3P9
Personal Light
ON
OFF
DOOR
I17
Interior Light
ON
OFF
DOOR
4
4D
R-B13
4F
R-BG-R
G-R3
1C5
ILL
10
1D2 GAUGE No. 1IG1 RELAY
11
4
3 4
1C 1B3 1GMulti Display
3
42
2 M7
M6M7
M6 Open Door
Driver Seat Belt
10
M7R
G-W
G-R25
B5
B5
B523
11AJAR
DBEW
PBEW
FL MAIN FL Block
ALT W
1
F101
F6
F81B
B-L
Battery
11
2H 2G W-B W-R
4
IG1 AM1 I15
Ignition Switch
2
W-L7
IF1
IG
AM1
21
55W-L
B2BLBody ECU
IG1 5
G-R
IG1
G-R 11 4C10
P-L
2
1
I14
Ignition
Key
Cylinder
LightG-R Engine Room J/B
Engine Room R/B No.5Engine Room J/B J/B No.4
Driver Side J/B
Passenger
Seat Belt
Driver Side J/B J/B No.4
Driver Side J/B
8W-B
1
G-R
IG1
DI-656
- DIAGNOSTICSBODY CONTROL SYSTEM
812 Author: Date:
2001 AVALON (RM808U)
WIRING DIAGRAM
Page 866 of 1897
I13610
Cruise Control ECU
4
PI
R-B
W-B10
1D
IF17W-R
4 IG1 AM1Ignition Switch 2
W
AM1 GAUGE NO. 1
2 1
5
B-L1
ALTFL Block
1 B
FL MAIN
BatteryF8 2G1
F6 F10
1
1
2H
B 5
W-LW-L 1
43 3
1B1
1G
4
1C IG1 RERAY 4
4D13
4F4
M7 M64
4H17
4A17
GR-R
R-BGR-R Cruise Control
Indicator Light
(in Multi Display)
IG
C15
I15
2J/B No. 4 J/B No. 4
Driver Side J/B
Engine Room R/B No. 5
Engine Room J/B DI-592
- DIAGNOSTICSCRUISE CONTROL SYSTEM
748 Author: Date:
2001 AVALON (RM808U)
CRUISE MAIN Indicator Light Circuit
CIRCUIT DESCRIPTION
When the cruise control main switch is turned ON, CRUISE MAIN indicator light lights up.
WIRING DIAGRAM
DI090-28
Page 883 of 1897
DI0EJ-09
DI-556
- DIAGNOSTICSCRUISE CONTROL SYSTEM
712 Author: Date:
2001 AVALON (RM808U)
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table
below and proceed to the appropriate page.
DTC No.
(See Page)Circuit InspectionTrouble Area
11, 15
(DI-561)Actuator Motor Circuit
Actuator motor
Harness or connector between cruise control ECU and
actuator motor
Cruise control ECU
12
(DI-563)Actuator Magnetic Clutch Circuit
STOP Fuse
Stop light switch
Actuator magnetic clutch
Harness or connector between cruise control ECU and
actuator magnetic clutch, actuator magnetic clutch and body
ground
Cruise control ECU
14
(DI-566)Actuator Mechanical MalfunctionActuator motor (actuator lock: motor, arm)
Cruise control ECU
21
(DI-568)Open in Vehicle Speed Sensor Circuit
Combination meter
Harness or connector between cruise control ECU and com-
bination meter, combination meter and vehicle speed sensor
Vehicle speed sensor
Cruise control ECU
23
(DI-571)Vehicle Speed Signal AbnormalVehicle speed sensor
Cruise control ECU
32
(DI-572)Control Switch Circuit
Cruise control switch
Harness or connector between cruise control ECU and cruise
control switch, cruise control switch and body ground
Cruise control ECU
41Cruise control ECUCruise control ECU
42Source voltage dropPower source
51
(DI-575)Idle Signal Circuit
Throttle position sensor
Harness or connector between ECM and throttle position
sensor
Harness or connector between cruise control ECU and ECM
Cruise control ECU
Page 890 of 1897
I13679
(a)
(a)(b)
No.Operation MethodCRUISE MAIN Indicator Light
Blinking PatternDiagnosis
1 Push SET/COAST switch ON
2Push RES/ACC switch ON
3Push CANCEL switch ON
Turn stop light switch ON
Depress brake pedal
Turn PNP switch OFF
(Shift to except D position)
4Drive at about 40 km/h
(25 mph)or higher
Drive at about 40 km/h
(25 mph) or below
LightON
OFF
LightON
OFF
LightON
OFFSwitch ON
Switch OFF
LightON
OFFSwitch OFF
Switch ONSET/COAST switch circuit
is normal
RES/ACC switch circuit
is normal
CANCEL switch circuit
is normal
Stop light switch circuit
is normal
PNP switch circuit is
normal
Vehicle Speed Sensor is
normal
LightON
OFF LightON
OFF
1sec.
0.25 sec.0.25 sec.
Turn clutch switch OFF
(Depress clutch pedal)Clutch switch circuit
is normal
- DIAGNOSTICSCRUISE CONTROL SYSTEM
DI-555
711 Author: Date:
2001 AVALON (RM808U)
5. INPUT SIGNAL CHECK
HINT:
(1) For check No.1 ~ No.3:
Turn ignition switch ON.
(2) For check No.4:
Jack up the vehicle.
Start the engine.
Shift to D position.
(a) Push the control switch to SET/COAST or RES/ACC posi-
tion and hold it down or up.
(b) Push the main switch ON.
(c) Check that the CRUISE MAIN indicator light blinks twice
or 3 times repeatedly after 3 seconds.
(d) Push the SET/COAST or RES/ACC switch OFF.
(e) Operate each switch as listed in the table below.
(f) Read the blinking pattern of the CRUISE MAIN indicator
light.
(g) After performing the check, turn the main switch OFF.
HINT:
When 2 or more signals are input to the ECU, the lowest num-
bered code will be displayed 1st.
Page 912 of 1897
FI4741
Fig. 1
Acceptable
Resistance kW
- 20 0 20 40 60 80 100
(- 4) (32) (68) (104) (140) (176) (212) 30
20
10
5
3
2
1
0.5
0.3
0.2
0.1
Te m p .°C (F°)
DI-28
- DIAGNOSTICSENGINE
184 Author: Date:
2001 AVALON (RM808U)
DTC P0110 Intake Air Temp. Circuit Malfunction
CIRCUIT DESCRIPTION
The intake air temperature sensor is built into mass air flow me-
ter and senses the intake air temperature.
A thermistor built in the sensor changes the resistance value
according to the intake air temperature.
The lower the intake air temperature, the greater the thermistor
resistance value, and the higher the intake air temperature, the
lower the thermistor resistance value (See Fig. 1).
The intake air temperature sensor is connected to the ECM.
The 5 V power source voltage in the ECM is applied to the in-
take air temperature sensor from terminal THA via resistor R.
That is, resistor R and the intake air temperature sensor are
connected in series. When the resistance value of the intake air
temperature sensor changes in accordance with changes in the
intake air temperature, the potential at terminal THA also
changes. Based on this signal, the ECM increases the fuel in-
jection volume to improve driveability during cold engine opera-
tion.
If the ECM detects the DTC P0110, it operates the fail-safe
function in which the intake air temperature is assumed to be
20°C (68°F).
DTC No.DTC Detecting ConditionTrouble Area
P0110Open or short in intake air temp. sensor circuit
Open or short in intake air temp. sensor circuit
Intake air temp. sensor (built into mass air flow meter)
ECM
HINT:
After confirming DTC P0110, use the OBD II scan tool or TOYOTA hand-held tester to confirm the intake
air temperature form the CURRENT DATA.
Temperature DisplayedMalfunction
-40°C ( -40°F )Open circuit
140°C ( 284°F ) or moreShort circuit
DI07H-10