Page 603 of 1897
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)DI-241
397 Author: Date:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check parking brake switch circuit (See page BE-53).
NG Repair or replace parking brake switch circuit.
OK
2 Check brake fluid level warning switch circuit (See page BE-53).
NG Repair or replace brake fluid level warning
switch circuit.
OK
3 Is DTC output for ABS ?
Yes Repair circuit indicated by the output code.
No
4 Check BRAKE warning light.
See combination meter troubleshooting on page BE-2.
NG Repair or replace combination meter.
OK
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.
Page 639 of 1897
DI-326
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
482 Author: Date:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
HINT:
Troubleshoot in accordance with the chart below for each trouble symptom.
ABS warning light does not light up*
ABS warning light remains onGo to step 2
*: Start the inspection from step 1 in case of using a TOYOTA hand-held tester and start from step 2 in case
of not using the TOYOTA hand-held tester.
1 Check operation of the ABS warning light.
PREPARATION:
(a) Connect the TOYOTA hand-held tester to the DLC3.
(b) Turn the ignition switch ON and push the TOYOTA hand-held tester main switch ON.
(c) Select the ACTIVE TEST mode on the TOYOTA hand-held tester.
CHECK:
Check that ºONº and ºOFFº of the ABS warning light can be shown on the combination meter on the TOYOTA
hand-held tester.
OK Check and replace ABS & BA & TRAC & VSC
ECU.
NG
2 Check ABS warning light.
See combination meter troubleshooting on page BE-2.
NG Replace bulb or repair combination meter as-
sembly.
OK
3 Check active lamp relay.
NG Replace active lamp relay.
OK
Repair or replace and check for open or short circuit in harness and connector.
Page 642 of 1897
DI-324
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
480 Author: Date:
2001 AVALON (RM808U)
5 Check operation of the VSC warning light.
In case of using the TOYOTA hand-held tester:
PREPARATION:
(a) Connect the TOYOTA hand-held tester to the DLC3.
(b) Turn the ignition switch ON and push the TOYOTA hand-held tester main switch ON.
(c) Select the ACTIVE TEST mode on the TOYOTA hand-held tester.
CHECK:
Check that ºONº and ºOFFº of the VSC warning light can be shown on the combination meter by the TOYOTA
hand-held tester.
In case of not using the TOYOTA hand-held tester:
PREPARATION:
(a) Turn the ignition switch OFF.
(b) Disconnect the connector from the ABS & BA & TRAC & VSC ECU.
(c) Turn the ignition switch ON.
CHECK:
Check the VSC warning light goes off.
NG Check and replace combination meter (See
page BE-2).
OK
6 Check for short circuit in harness and connector between combination meter
and ABS & BA & TRAC & VSC ECU, combination meter and DLC1 (See page
IN-30).
NG Repair or replace harness or connector.
OK
Check and replace ABS & BA & TRAC & VSC
ECU.
Page 645 of 1897
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI-321
477 Author: Date:
2001 AVALON (RM808U)
5 Check operation of the ABS warning light.
In case of using the TOYOTA hand-held tester:
PREPARATION:
(a) Connect the TOYOTA hand-held tester to the DLC3.
(b) Turn the ignition switch ON and push the TOYOTA hand-held tester main switch ON.
(c) Select the ACTIVE TEST mode on the TOYOTA hand-held tester.
CHECK:
Check that ºONº and ºOFFº of the ABS warning light can be shown on the combination meter by the TOYOTA
hand-held tester.
In case of not using the TOYOTA hand-held tester:
PREPARATION:
(a) Turn the ignition switch OFF.
(b) Disconnect the connector from the ABS & BA & TRAC & VSC ECU.
(c) Turn the ignition switch ON.
CHECK:
Check the ABS warning light goes on.
OK Check and replace combination meter (See
page BE-2).
NG
6 Check for short circuit in harness and connector between active lamp relay and
ABS & BA & TRAC & VSC ECU (See page IN-30).
NG Repeir or replace harness or connector.
OK
Check and replace ABS & BA & TRAC & VSC
ECU.
Page 647 of 1897
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI-331
487 Author: Date:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check parking brake switch circuit (See page BE-53).
NG Repair or replace parking brake switch circuit.
OK
2 Check brake fluid level warning switch circuit (See page BE-53).
NG Repair or replace brake fluid level warning
switch circuit.
OK
3 Is DTC output for ABS ?
YES Repair circuit indicated by the output code.
No
4 Check BRAKE warning light.
See combination meter troubleshooting on page BE-2.
NG Repair or replace combination meter.
OK
Page 648 of 1897
DI-332
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
488 Author: Date:
2001 AVALON (RM808U)
5 Check active lamp relay.
NG Replace active lamp relay.
OK
6 Check for open or short circuit in harness and connector between combination
meter and active lamp relay (See page IN-30).
NG Repair or replace harness or connector.
OK
7 Check for open or short circuit in harness and connector between active lamp
relay and ABS & BA & TRAC & VSC ECU (See page IN-30).
NG Repair or replace harness or connector.
OK
Check and replace ABS & BA & TRAC & VSC
ECU.
Page 703 of 1897
DI-334
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
490 Author: Date:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1, in case of using the TOYOTA hand-held tester and start from step 2, in case
of not using the TOYOTA hand-held tester.
1 Check operation of the SLIP indicator light.
PREPARATION:
(a) Connect the TOYOTA hand-held tester to the DLC3.
(b) Turn the ignition switch ON and push the TOYOTA hand-held tester main switch ON.
(c) Select the ACTIVE TEST mode on the TOYOTA hand-held tester.
CHECK:
Check that ºONº and ºOFFº of the SLIP indicator light can be shown on the combination meter with the TOY-
OTA hand-held tester.
OK Go to step 4.
NG
2 Check that the SLIP indicator light is ON for 3 seconds immediately after ignition
switch is turned ON.
OK Check and replace ABS & BA & TRAC & VSC
ECU.
NG
3 Check SLIP indicator light.
See combination meter troubleshooting on page BE-2.
NG Repair or replace combination meter. Check
and replace ABS & BA & TRAC & VSC ECU.
OK
