Lexus ES300 (1997 year). Manual — part 354
Q07595
2
4
–
DIAGNOSTICS
AUTOMATIC TRANSAXLE
DI–193
345
1997 LEXUS ES300 (RM511U)
Check and replace the combination meter
(See page
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 switch
Resistance
ON
∞
Ω
(open)
OFF
0
Ω
(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
NG
Repair or replace the harness or connector.
OK
Check and replace the ECM.
DI0AB–01
Vehicle Brought to Workshop
Customer Problem Analysis
P.
Check and Clear DTC (Pre–check)
P.
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 Confirmation
Symptom Simulation
P.
Symptom
does not occur
Symptom
occurs
DTC Check
P.
Sensor Check
Circuit Inspection
P.
∼
DTC Chart
P.
Malfunction code
Problem Symptoms Table
P.
Identification of Problem
Normal code
Repair
Confirmation Test
End
1
2
3
4
5
6
7
8
9
10
11
Step 2, 5, 11:
Diagnostic steps permitting the use of the
LEXUS hand–held tester.
Parts Inspection
DI–194
–
DIAGNOSTICS
ELECTRIC MODULATED SUSPENSION
346
1997 LEXUS ES300 (RM511U)
ELECTRIC MODULATED SUSPENSION
HOW TO PROCEED WITH TROUBLESHOOTING
Troubleshoooting in accordance with the procedure on the following pages.
DI0AC–01
:
Customer’s Name
Date Vehicle
Brought In
Registration Year
Registration No.
Frame No.
Odometer Reading
/ /
/ /
Date Problem First Occurred
Frequency Problem Occurs
/ /
DTC Check
1st Time
2nd Time
Normal Code
Malfunction Code (Code )
Normal Code
Malfunction Code (Code )
Symptoms
km
miles
Anti–roll control does not operate
Sometimes ( times per day, month)
Constant
Once only
Fine
Snowy
Cloudy
Rainy
Hot
Various/ Others
Weather
Outdoor Temperature
Place
Cold (Approx.
°
F(
°
C))
Cool
Warm
Others ( )
Suburbs
Rough Road
Inner City
Hill (Up, Down)
Highway
Condtions at
Time of Problem
Occurrence
Malfunction in
damping force
control
Anti–squat control does not operate
Anti–dive control does not operate
High speed control does not operate
Bounding control does not operate
Others ( )
Others
ELECTRONIC MODULATED SUSPENSION Check Sheet
Inspector’s
Name
–
DIAGNOSTICS
ELECTRIC MODULATED SUSPENSION
DI–195
347
1997 LEXUS ES300 (RM511U)
CUSTOMER PROBLEM ANALYSIS CHECK
DI0AD–01
W03868
E1
TEM
–
+
DLC2
F00007 I00169
F00287
DLC1
E1
Tc
DLC2
Tc
E1
W03868
DLC2
E1
–
TEM
+
W03869
0.25 sec.
Normal code
Light OFF
Light ON
0.25 sec.
W03882
2.5 sec.
Repeat
1
Light ON
Malfunction Code (Example Code 21, 31)
Light OFF
4.5 sec.
0.5 sec.
1.5 sec.
0.5 sec.
1
2
3
DI–196
–
DIAGNOSTICS
ELECTRIC MODULATED SUSPENSION
348
1997 LEXUS ES300 (RM511U)
PRE–CHECK
1.
DIAGNOSIS SYSTEM
(a)
TEM OUTPUT CHECK (LED LIGHTENING CHECK)
(1)
Connect the LED to terminals TEM and E1 of DLC2.
NOTICE:If connected reversely, the LED does not light.
HINT:Use the LED whose recommended operating current is
10 – 20 mA.
(2)
Turn the ignition switch ON, and check that the LED
lights for about 2 seconds.
HINT:
If the LED does not light, inspect the TEM circuit
(See page
(b)
DTC CHECK
(1)
Check the battery positive voltage.
Battery positive voltage: 10 – 14 V (When is
stopped the engine)
(2)
After driving the vehicle, using SST, connect be-
tween terminals Tc and E1of DLC2 or DLC1.
SST
09843–18020
HINT:
Do not stop the engine.
In this condition, the ignition switch is ON.
NOTICE:The wrong connection of the connector may
cause malfunction. Use extreme caution when connecting
the connector.
(3)
Connect the LED to terminals TEM and E1 of DLC2.
(4)
Check the number that the LED blinks.
When the code is normal, the LED comes on for
0.25 sec. and goes off for 0.25 sec. repeatedly.
When more than 2 diagnosis codes are detected,
the diagnosis codes are displayed in the order form
the smallest number.
If no code appears, inspect the diagnostic circuit
(See page
Code are explained in the code table on page
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