
DI-334
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
DI6OI-02
ABS Warning Light Circuit
WIRING DIAGRAM
Skid Control ECU
W GR
A
Engine
2 2D J17
Room
J/C
4 J/B No. 2
A
100A 2 1D
GR
INP
Fusible D
Driver
Link 2 2L Side J18
Block J/B No. 1 J/C
140A
W 10A D
ALT
GAUGE GR
1 1B
1 1 1K
Driver 9 C10
B-L 1 Side
J/B No. 1 Combination ABS
40A B-Y Meter Warning
AM1 Light
FL Main 4
2
I12 5 C11
Ignition
2 1K Switch
1 R-L
2 23
Battery V14 WA
W-L
F13458
2001 SIENNA (RM787U)
Author : Date : 488
DI-335
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
INSPECTION PROCEDURE
HINT:
Troubleshoot in accordance with the chart below for each trouble symptom.
ABS warning light does not light up See below
ABS warning light remains on See page DI-334
1 Check operation of the ABS warning light.
PREPARATION:
(a) Turn the ignition switch OFF.
(b) Disconnect the connector from the skid control ECU.
(c) Turn the ignition switch ON.
CHECK:
Check the ABS warning light goes on.
OK Check and replace skid control ECU.
NG
2 Check for short circuit in harness and connector between combination meter
and skid control ECU (See page IN-31 ).
NG Repair or replace harness or connector.
OK
Replace or repair bulb or combination meter.
2001 SIENNA (RM787U)
Author : Date : 489