Lexus SC300 / Lexus SC400. Manual — part 77
–Memo–
AT–64
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A304E (1UZ–FE) AUTOMATIC TRANSMISSION
TROUBLESHOOTING
MATRIX CHART OF PROBLEM SYMPTOMS
AT0LS–08
If a normal code is displayed during the diagnostic trouble code check but the trouble still occurs, check
the circuits for each symptom in the order given in the charts on the following pages and proceed to the
page given for troubleshooting.
The Matrix Chart is divided into 3 chapters.
Chapter 1: Electronic Circuit Matrix Chart
Chapter 2: On–vehicle Repair Matrix Chart
Chapter 3: Off–vehicle Repair Matrix Chart
In troubleshooting, check Chapter 1 first. If instructions are given in Chapter 1 to proceed to Chapter 2 or
3, proceed to it.
1.
If the instruction “Proceed to next circuit inspection shown on matrix chart” is given in the flow
chart for each circuit, proceed to the circuit with the next highest number in the table to continue
the check.
2.
If the trouble still occurs even though there are no abnormalities in any of the other circuits, then
check or replace the ECM.
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A304E (1UZ–FE) AUTOMATIC TRANSMISSION
TROUBLESHOOTING
AT–65
Chapter 1. Electronic Circuit
A T –
7
8
AT –
8
2
AT–86
AT–90
AT–94
AT–98
AT–102
A
T–66
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A304E
(1UZ–FE) AUT
OMA
TIC TRANSMISSION
TROUBLESHOOTING
AT–106
AT–104
AT–108
AT–110
AT–112
AT–116
AT–68
AT–70
IN–26
EG–580
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A304E (1UZ–FE) AUT
O
M
A
TIC TRANSMISSION
TROUBLESHOOTING
A
T–67
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