_diagnostics - Automatic Transmission.pdf

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DIAGNOSTICS
–
ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (April, 2003)
05–345
ELECTRONIC CONTROLLED AUTOMATIC TRANSAXLE
[ECT] (Apr., 2003)
PRECAUTION
NOTICE:
Perform the RESET MEMORY (AT initialization) when replacing the automatic transaxle assy, engine
assy or ECM (See page 05–371 ).
HINT:
Initialization can not be completed by only removing the battery.
05C0T–05
2004 COROLLA (RM1037U)
Author:
Date:
510
05–346
DIAGNOSTICS
–
ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (April, 2003)
HOW TO PROCEED WITH TROUBLESHOOTING
The hand–held tester can be used at step 3, 4, 6, 9.
1
0527H–17
Vehicle Brought to Workshop
2
Customer Problem Analysis (See page 05–349 )
3
Connect the OBD II scan tool or hand–held tester to DLC3
4
Check and Clear DTC and Freeze Frame Data (See page 05–353 )
5
Visual Inspection
6
Setting the Check Mode Diagnosis (See page 05–354 )
7
Problem Symptom Confirmation (See page 05–356 )
Symptom does not occur: Go to step 8
Symptom occur: Go to step 9
8
Symptom Simulation (See page 01–20 )
9
DTC Check (See page 05–353 )
DTC is not output: Go to step 10
DTC is output: Go to step 18
2004 COROLLA (RM1037U)
Author:
Date:
511
256351901.001.png
DIAGNOSTICS
–
ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (April, 2003)
05–347
10
Basic Inspection (See page 40–2 , 40–6 and 40–44 )
NG
Go to step 20
OK
11
Mechanical System Test (See page 05–358 )
NG
Go to step 17
OK
12
Hydraulic Test (See page 05–360 )
NG
Go to step 17
OK
13
Manual Shifting Test (See page 05–361 )
NG
Go to step 15
OK
14
Problem Symptoms Table Chapter 1 (See page 05–374 )
NG
Go to step 19
OK
15
Problem Symptoms Table Chapter 2 (See page 05–374 )
NG
Go to step 17
OK
16
Problem Symptoms Table Chapter 3 (See page 05–374 )
NG
17
Part Inspection
Go to step 20
18
DTC Chart (See page 05–372 )
2004 COROLLA (RM1037U)
Author:
Date:
512
256351901.002.png
05–348
DIAGNOSTICS
–
ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (April, 2003)
19
Circuit Inspection
20
Identification of Problem
21
Repair
22
Confirmation Test
End
2004 COROLLA (RM1037U)
Author:
Date:
513
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DIAGNOSTICS
–
ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (April, 2003)
05–349
CUSTOMER PROBLEM ANALYSIS CHECK
0527I–17
Transaxle Control
System Check Sheet
Inspector’s
Name
:
VIN
Customer’s Name
Production Date
/ /
Licence No.
Date Vehicle
Brought In
/ /
Odometer Reading
km
mile
Date Problem
Occurred
How Often Does
Problem Occur?
/ /
Continuous
Intermittent ( times a day)
Vehicle does not move (
Any position
Particular position)
No up–shift (
1st
"
2nd
2nd
"
3rd
3rd
"
O/D )
No down–shift (
O/D
"
3rd
3rd
"
2nd
2nd
"
1st )
Lock–up malfunction
Symptoms
Shift point too high or too low
Harsh engagement (
N
"
D
Lock–up
Any drive position)
Slip or shudder
No kick–down
Others
Check Item
MIL
Normal
Remains ON
1st Time
Normal code
Malfunction code (DTC )
DTC Check
2nd Time
Normal code
Malfunction code (DTC )
2004 COROLLA (RM1037U)
Author:
Date:
514
256351901.004.png

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