brake light TOYOTA AVALON 2001 Service Owner's Manual
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 2001, Model line: AVALON, Model: TOYOTA AVALON 2001Pages: 1897, PDF Size: 26.61 MB
Page 622 of 1897
F00069
(+) (-)
14A7
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)DI-235
391 Author: Date:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check operation of stop light.
CHECK:
Check that the stop light lights up when the brake pedal is depressed and turns off when the brake pedal
is released.
NG Repair stop light circuit (See page BE-36).
OK
2 Check voltage between terminal STP (A7 - 14) of brake actuator and body
ground.
PREPARATION:
Disconnect the connector from the brake actuator.
CHECK:
Measure the voltage between terminal A7 - 14 of brake actua-
tor harness side connector and body ground when the brake
pedal is depressed.
OK:
Voltage: 8 - 14 V
OK Check and replace ABS ECU.
NG
3 Check for open circuit in harness and connector between terminal STP of brake
actuator and stop light switch (See page IN-30).
NG Repair or replace harness or connector.
OK
Proceed to next circuit inspection shown in
problem symptoms table (See page
DI-218).
Page 623 of 1897
DI-236- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)
392 Author: Date:
2001 AVALON (RM808U)
DTC 62 ABS ECU Malfunction
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
62ABS ECU continuously detects the proper operation of
ABS.ABS ECU
INSPECTION PROCEDURE
1 Is DTC output?
Check the DTC on page DI-212.
YES Repair circuit indicated by the code output.
NO
2 Is normal code displayed?
YES Check for short circuit in harness and connec-
tor between DLC1 or DLC2 and ABS ECU (See
page IN-30).
NO
3 Is ABS warning light off?
YES Check open and short circuit of the harness and
connector in the Tc circuit between ABS ECU
and DLC2 or DLC1.
NO
DI6NJ-01
Page 624 of 1897
F00067
ON
(+) (-)
15
19
16 A7
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)DI-237
393 Author: Date:
2001 AVALON (RM808U)
4 Check voltage between terminals IG1 (A7 - 15) and GND (A7 - 16, 19) of brake
actuator connector.
PREPARATION:
Disconnect the connector from the brake actuator.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure the voltage between terminals A7 - 15 and A7
- 16, 19 of brake actuator harness side connector.
OK:
Voltage: 10 - 14 V
NG Check for open or short circuit in harness and
connector between ECU-IG fuse and IG1 of
brake actuator (See page IN-30).
OK
5 Check connection of brake actuator connector.
CHECK:
Check the connection of the brake actuator connector and check the ABS warning light goes off.
OK Repair or replace harness or connector.
NG
Check and replace ABS ECU.
Page 625 of 1897
F09805
ABS Actuator and ECU
DLC2LG-R
LG-RLG-RTc 12
A7 7
1H 3B 4
Tc 4
EB5
1I 4
133A 3G
22 II2
W-BLG-R
DLC1 LG-R
LG-R6
4H 6
4A
Tc
E13J/B No. 4
Driver Side J/B J/B No. 3
11
F10163
DLC2
Tc E1
DLC1
Tc ON
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)DI-245
401 Author: Date:
2001 AVALON (RM808U)
Tc Terminal Circuit
CIRCUIT DESCRIPTION
Connecting between terminals Tc and E1 of the DLC1 causes the ECU to display the DTC by flashing the
ABS warning light.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check voltage between terminals Tc and E1.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure the voltage between terminals Tc and E
1 of
DLC1 or terminal Tc of DLC2 and body ground.
OK:
Voltage: 10 - 14 V
OK If ABS warning light does not blink even after Tc
and E
1 are connected, the ECU may be defec-
tive.
NG
DI6NN-01
Page 628 of 1897
AB0119S08096
F00446
Ts
DLC1Ts
DLC1Ts
DLC1Ts
DLC1Ts
DLC1Ts
DLC1 E
1
ON
DI-248- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)
404 Author: Date:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check voltage between terminals Ts and E1 of DLC1.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure the voltage between terminals Ts and E
1 of
DLC1.
OK:
Voltage: 10 - 14 V
OK If ABS warning light does not blink even after Ts
and E
1 are connected, the ECU may be defec-
tive.
NG
2 Check for open and short circuit in harness and connector between ABS ECU
and DLC1, DLC1 and body ground (See page IN-30).
NG Repair or replace harness or connector.
OK
Check and replace ABS ECU.
Page 629 of 1897
DI6N6-01
Inspector 's
Name:
Customer 's Name
Date Vehicle
Brought InRegistration DateRegistration No.
Frame No.
Odometer Reading/ /
/ /
Date Problem First Occurred
Frequency Problem Occurs/ /
ContinuousIntermittent ( times a day)
Remains ONDoes not Light Up
DTC Check1st Time
2nd TimeNormal Code
Malfunction Code (Code )
Normal CodeMalfunction Code (Code )
Symptomskm
miles
ABS does not operate.
ABS Warning Light
AbnormalABS does not operate intermittently.
ABS Check Sheet
BRAKE Warning
Light AbnormalRemains ONDoes not Light Up
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)DI-21 1
367 Author: Date:
2001 AVALON (RM808U)
CUSTOMER PROBLEM ANALYSIS CHECK
Page 630 of 1897
DI6N8-01
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)DI-215
371 Author: Date:
2001 AVALON (RM808U)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Using SST 09843-18020, connect the terminals Tc and E1.
If any abnormality is found when inspecting parts, inspect the ECU.
If a malfunction code is displayed during the DTC check, check the circuit listed under the code. For
details of each code, refer to the page under respective ºDTC No.º in the DTC chart.
DTC No.
(See Page)Detection ItemTrouble Area
11
(DI-219)Open or short circuit in ABS solenoid relay circuitABS solenoid relay
ABS solenoid relay circuit
13
(DI-221)Open or short circuit in ABS pump motor circuitABS motor relay
ABS motor relay circuit
21
(DI-223)Open or short circuit in brake actuatorBrake actuator
SFRR or SFRH circuit
22
(DI-223)Open or short circuit in brake actuatorBrake actuator
SFLR or SFLH circuit
23
(DI-223)Open or short circuit in brake actuatorBrake actuator
SRRR or SRRH circuit
24
(DI-223)Open or short circuit in brake actuatorBrake actuator
SRLR or SRLH circuit
31*
(DI-225)Right front wheel speed sensor signal malfunction
32*
(DI-225)Left front wheel speed sensor signal malfunctionRight front, left front, right rear and left rear speed sensor
Eh d i it33*
(DI-225)Right rear wheel speed sensor signal malfunction
Each speed sensor circuit
Sensor installation
34*
(DI-225)Left rear wheel speed sensor signal malfunction
35*
(DI-225)Open circuit in right front wheel speed sensor circuitRight front, left front speed sensor
36*
(DI-225)Open circuit in left front wheel speed sensor circuit
Right front, left front s eed sensor
Each speed sensor circuit
37
(DI-230)Speed sensor rotor has wrong number of teeth on one of the 4
wheelsSpeed sensor
Sensor rotor
38*
(DI-225)Open circuit in right rear wheel speed sensor circuitRight rear, left rear speed sensor
39*
(DI-225)Open circuit in left rear wheel speed sensor circuit
Right rear, left rear s eed sensor
Each speed sensor circuit
41
(DI-231)Low and high battery positive voltage
Battery
Charging system
Power source circuit
58
(DI-234)Open circuit in stop light switch circuitStop light switch
Stop light switch circuit
62
(DI-236)Malfunction in ABS ECUABS ECU
Always ON
(DI-238)Malfunction in ABS ECUCharging system
ABS warning light circuit
*: As the DTC cannot only be erased by replacing parts, do either of the following operations.
(1) Clear DTC (See page DI-212).
(2) At a vehicle speed of 20 km/h (12 mph), drive the vehicle for 30 sec. or more.
Page 631 of 1897
DI6N5-01
Vehicle Brought to Workshop
Customer Problem Analysis
P. DI-21 1
Check and Clear DTC (Precheck)
P. DI-212Items 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
P. IN-20
Symptom
does not occur
Symptom
occurs
DTC Check
Sensor CheckCircuit Inspection
P. DI-219 - DI-247
DTC Chart
P. DI-215 Malfunction codeProblem Symptoms Table
P. DI-218
Check for Fluid Leakage
P. DI-249
Identification of Problem
Normal code
Repair
Confirmation Test
End
1
2
3
4
5
67
89
10
11
P. DI-212
Fail safe function:
When a failure occurs in the ABS system, the ABS warning light is lit and the ABS operation is prohibited. In addition
to this, when the failure which disables the EBD operation occurs, the brake warning light is lit as well and EBD
operation is prohibited. DI-210
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)
366 Author: Date:
2001 AVALON (RM808U)
ANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC BRAKE
FORCE DISTRIBUTION (EBD)
HOW TO PROCEED WITH TROUBLESHOOTING
Troubleshoot in accordance with the procedure on the following pages.
Page 632 of 1897
DI6N9-01
F07882
Brake Actuator
(w/ ECU, Relay)Front Speed Sensor DLC1
DLC2
Sensor RotorRear Speed Sensor
ABS Warning Light
BRAKE Warning LightSensor Rotor
Front Speed Sensor
Rear Speed Sensor
Stop Light Switch
Sensor RotorActive
Lamp Relay
DI-216- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)
372 Author: Date:
2001 AVALON (RM808U)
PARTS LOCATION
Page 633 of 1897
DI6N7-01
F07879
F02201
E1Tc
DLC1
F00103
Normal Code
0.25 sec.
0.25 sec. 0.5 sec.
ON
OFF
ON
OFF0.5 sec. 0.5 sec.
Code 11 and 21
4 sec.1.5 sec.
2.5 sec.
Code 11 Code 21
DI-212- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)
368 Author: Date:
2001 AVALON (RM808U)
PRE-CHECK
1. DIAGNOSIS SYSTEM
(a) Release the parking brake pedal.
(b) Check the indicator.
When the ignition switch is turned ON, check that the ABS
warning light and BRAKE warning light goes on for
approx. 3 seconds.
HINT:
When the parking brake is applied or the level of the brake
fluid is low, the BRAKE warning light is lit.
If the indicator check result is not normal, proceed to trou-
bleshooting for the ABS warning light circuit or BRAKE
warning light circuit (See page DI-243, DI-240).
(c) Check the DTC.
(1) Using SST, connect terminals Tc and E
1 of DLC1.
SST 09843-18020
(2) Turn the ignition switch ON and read the DTC from
the ABS warning light on the combination meter.
HINT:
If no codes appears, inspect the diagnostic circuit or ABS
warning light circuit (See page DI-245 or DI-243).
As an example, the blinking patterns for normal code and
codes 11 and 21 are shown on the left.
(3) Codes are explained in the code table on page
DI-215.
(4) After completing the check, disconnect terminals Tc
and E
1, and turn off the display.
If 2 or more malfunction codes are identified at the
same time, the lowest numbered DTC will be dis-
played 1st.