
DI-342
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
DI6OL-02
SLIP Indicator Light Circuit
CIRCUIT DESCRIPTION
The SLIP indicator light blinks during TRAC & VSC operation.
WIRING DIAGRAM
Skid Control ECU
W GR
A
Engine
2 2D Room J17
4 J/B No. 2 J/C
A
100A 2 1D GR
INP
Driver D
Fusible
2 2L Side J18
Link
140A J/B No. 1 J/C
ALT
Block
W D
GR
1 1B
1 1 1K
Driver 9 C10
B-L 1 Side SLIP
J/B No. 1 Combination Indicator
40A
Meter Light
AM1 B-Y
FL Main
4
2
I12 6 C9
Ignition
2 1K Switch
L-B
2 31
Battery IND
V14
W-L
F13458
2001 SIENNA (RM787U)
Author : Date : 496
DI-343
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
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 "ON" and "OFF" 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 No problem.
NG
3 Check SLIP indicator light.
See combination meter troubleshooting on page BE-2 .
NG Repair or replace bulb or combination meter.
OK
2001 SIENNA (RM787U)
Author : Date : 497
DI-344
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
4 Check for open and short circuit in harness and connector between skid control
ECU and SLIP indicator light IG switch and SLIP indicator light (See page
IN-31 ).
NG Repair or replace harness or connector.
OK
Check and replace skid controlECU.
2001 SIENNA (RM787U)
Author : Date : 498