Toyota Celica 2005 Repair Manual page 897

DI−698
PROBLEM SYMPTOMS TABLE
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
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.
If the trouble still occurs even though there are no abnormalities in any of the other circuits, check and re-
place the ECM.
Chapter 1: Electronic circuit matrix chart
No up−shift (A particular gear, from 1st to 3rd gear, is not up−
shifted)
No up−shift (3rd → O/D)
No down−shift (O/D → 3rd)
No down−shift (A particular gear, from 3rd to 1st gear, is not
down−shifted)
No lock−up or No lock−up off
Shift point too high or too low
Up−shift to 2nd while in L position
Up−shift to 3rd while in 2 position
Up−shift to O/D from 3rd while O/D main switch is OFF
Up−shift to O/D from 3rd while engine is cold
Harsh engagement (N → D)
Harsh engagement (Lock−up)
Harsh engagement (Any driving position)
Poor acceleration
Engine stalls when starting off or stopping
No E−shift system
2005 CELICA (RM1131U)
DIAGNOSTICS
Symptom
− AUTOMATIC TRANSAXLE (U240E)
Suspected Area
ECM
2. O/D main switch circuit
3. ECM
ECM
ECM
ECM
ECM
ECM
ECM
1. O/D main switch circuit
2. ECM
ECM
ECM
ECM
ECM
ECM
ECM
1. E−shift main switch circuit
2. Transmission shift switch circuit
3. ECM
896
DI501−06
See page
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DI−746
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DI−746
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DI−752
DI−749
IN−30