Toyota Celica 2005, Repair Manual

Page: 986 / 2497

DI67T − 08
− DIAGNOSTICS AUTOMATIC TRANSAXLE (U341E)
DI − 785
2005 CELICA (RM1131U)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the DTC 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 trouble-
shooting.
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
Symptom Suspected Area See page
No up − shift
(A particular gear, from 1st to 3rd gear, is not up − shifted)
ECM −
No up − shift
(3rd
→
O/D)
1. O/D main switch and O/D OFF indicator light circuit
2. O/D cancel signal circuit
3. ECM DI − 829
DI − 832
−
No down − shift
(A particular gear, from 1st to 3rd gear, is not down − shifted)
ECM −
No down − shift
(O/D → 3rd)
1. O/D main switch and O/D OFF indicator light circuit
2. ECM DI − 829
−
No lock − up ECM −
No lock − up OFF ECM −
Shift point too high or too low ECM −
Up − shift to O/D from 3rd while O/D main switch is OFF ECM −
Up − shift to O/D from 3rd while engine is cold ECM −
No kick − down ECM −
Engine stalls when starting off or stopping ECM −
985