Page 2905 of 4770
BE3840Q07659
D00053
D00835D01915
Except California, w/ Engine Immobilizer
and / or TRAC:
California, w/ Engine Immobilizer
and / or TRAC:OD1
OD1 ON
(+) (±) (±)
(+)
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
DI±485
720 Author: Date:
INSPECTION PROCEDURE
1 Check voltage between terminal OD1 of ECM and body ground.
PREPARATION:
Turn the ignition switch ON.
CHECK:
Measure voltage between terminal OD1 of ECM and body
ground.
OK:
Voltage: 10 ~ 14 V
OK Proceed to next circuit inspection shown on
matrix chart (See page DI±453).
NG
Page 2906 of 4770
AB0119
N19917
I00742
ON
O/D
(±)
(+)
DI±486
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
721 Author: Date:
2 Check voltage between terminal OD of cruise control ECU harness side connec-
tor and body ground.
PREPARATION:
(a) Disconnect the cruise control ECU connector.
(b) Turn the ignition switch ON.
CHECK:
Measure voltage between terminal OD of cruise control ECU
harness side connector and body ground.
OK:
Voltage: 10 ~ 14 V
OK Check and replace the cruise control ECU.
NG
3 Check harness and connector between cruise control ECU and ECM.
NG Repair or replace the harness or connector.
OK
Check and replace the ECM.
Page 2907 of 4770
D01900
ECM
4E7OD2B+
G±O
IG1 C
CC
O2 O/D Main
Switch O/D Indicator
Light
C8 712
R±L
D
Ignition Switch
11K2
1DGAUGE J/C J4
G±OG±O
IG3
J/C J6
G±O
O2
B±Y
AM11B 1K
C10
AM1
F9 D
R±L
I16 W 21
24
I16 2
12
B±R
B±R
B±R1
2
F9Fusible Link Block
FL Main
Battery 1
F4B±GW±B
A
J/C J5
IF A
W±B
Left Kick Panel
*1: Except California, w/ Engine Immobilizer and / or TRAC
*2: California, w/ Engine Immobilizer and / or TRACInstrument Panel J/B
Instrument Panel J/B11106 *2*1
ALTE8
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
DI±487
722 Author: Date:
O/D Main Switch & O/D OFF Indictor Light Circuit
CIRCUIT DESCRIPTION
The O/D main switch contacts go open when the switch is pushed in and go closed when it is pushed out.
In O/D main switch at OFF position, the O/D OFF indicator light lights up, and the ECM prohibits shifting over-
drive.
WIRING DIAGRAM
DI1KD±01
Page 2908 of 4770
Q07595
2
4
DI±488
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
723 Author: Date:
INSPECTION PROCEDURE
O/D OFF indicator light does not light up
1 Check O/D main switch.
PREPARATION:
Disconnect the O/D main switch connector.
CHECK:
Check continuity between terminals 2 and 4 of O/D main switch
connector.
OK:
O/D main switchResistance
ON8 W (open)
OFF0 W (continuity)
NG Replace the O/D main switch.
OK
2 Check and replace the combination meter (See page BE±2).
NG Replace the combination meter.
OK
3 Check OVRDRIVE CUT SW2 signal.
When using TOYOTA hand±held tester
PREPARATION:
(a) Connect a TOYOTA hand±held tester to the DLC3.
(b) Turn the ignition switch ON and TOYOTA hand±held tes-
ter main switch ON.
CHECK:
Read the OVRDRIVE CUT SW2 signal on the TOYOTA hand±
held tester.
OK:
O/D main switch conditionOVRDRIVE CUT SW2 signal
Pushed inOFF
Pushed outON
Page 2909 of 4770
BE3840
D00837Q07662D01916
Except California, w/ Engine Immobilizer
and / or TRAC:
California, w/ Engine Immobilizer
and / or TRAC:
OD2 OD2
(+) (±) ON
(+) (±)
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
DI±489
724 Author: Date:
When not using TOYOTA hand±held tester
PREPARATION:
Turn the ignition switch ON.
CHECK:
Check voltage between terminal OD2 of ECM and body ground.
OK:
O/D main switchVoltage
OFFBelow 1 V
ON10 ~ 14 V
NG Check and replace the ECM.
NG
4 Check harness and connector between O/D OFF indicator light and ECM
(See page IN±31).
NG Repair or replace the harness or connector.
OK
Check and replace the ECM.
Page 2910 of 4770
Q07595
2
4
DI±490
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
725 Author: Date:
O/D OFF indicator light remains on
1 Check O/D main switch.
PREPARATION:
Disconnect the O/D main switch connector.
CHECK:
Check continuity between terminals 2 and 4 of O/D main switch
connector.
OK:
O/D main switchResistance
ON8 W (open)
OFF0 W (continuity)
NG Replace the O/D main switch.
OK
2 Check harness and connector between O/D OFF indicator light and O/D main
switch, O/D OFF indicator light and ECM (See page IN±31).
NG Repair or replace the harness or connector.
OK
Check and replace the ECM.
Page 2911 of 4770
DI03A±02
Vehicle Brought to Workshop
Customer Problem Analysis
P. DI±492
Check and Clear DTC (Precheck)
P.
DI±493
Items 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±21
Symptom
does not occur
Symptom
occurs
DTC Check
P. DI±493
Sensor CheckCircuit Inspection
P. DI±502 ~ DI±534
DTC Chart
P. DI±497 Malfunction codeProblem Symptoms Table
P. DI±501
Check for Fluid Leakage
P. DI±536
Identification of Problem
Normal code
Repair
Confirmation Test
End
1
2
3
4
5
67
89
10
11
Step 2, 5, 8, 9, 11:Diagnostic steps permitting the use of the
TOYOTA hand±held tester or TOYOTA
break±out±box.
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (DENSO Made)
DI±491
726 Author: Date:
ANTI±LOCK BRAKE SYSTEM (DENSO Made)
HOW TO PROCEED WITH TROUBLESHOOTING
Troubleshoot in accordance with the procedure on the following pages.
Page 2912 of 4770
DI03B±02
ABS Check Sheet
Inspector 's
Name:
Customer 's Name
Date Vehicle
Brought InRegistration Year Registration 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 efficiently. DI±492
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (DENSO Made)
727 Author: Date:
CUSTOMER PROBLEM ANALYSIS CHECK