DIAGNOSTIC TROUBLE CODE CHECK PROCEDURE
Diagnostic Trouble
Code Check (Make a
note of and then clear)
Confirmation
of Symptoms
Diagnostic Trouble
Code Check
Problem Condition
Diagnostic Trouble
Code Display
Problem symptoms
exist
Same diagnostic
trouble code is
displayed
Problem is still occurring in the diagnostic
circuit
Normal code is
displayed
The problem is still occurring in a place
other than in the diagnostic circuit
(The diagnostic trouble code displayed
first is either for a past problem or it is a
secondary problem)
No problem
symptoms exist
The problem occurred in the diagnostic
circuit in the past
Normal Code Display
Problem symptoms
exist
Normal code is
displayed
The problem is still occurring in a place
other than in the diagnostic circuit
No problem
symptoms exist
Normal code is
displayed
The problem occurred in a place other
than in the diagnostic circuit in the past
IN
−
22
−
INTRODUCTION
HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
2005 CELICA (RM1131U)
2.
SYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE CHECK
The diagnostic system in the CELICA fulfills various functions. The first function is the Diagnostic Trouble
Code Check in which a malfunction in the signal circuits to the ECU is stored in code in the ECU memory
at the time of occurrence, to be output by the technician during troubleshooting. Another function is the Input
Signal Check which checks if the signals from various switches are sent to the ECU correctly.
By using these check functions, the problem areas can be narrowed down quickly and troubleshooting can
be performed effectively. Diagnostic functions are incorporated in the following systems in the CELICA.
System
Diagnostic Trouble
Code Check
Input Signal Check
(Sensor Check)
Diagnostic Test
Mode (Active Test)
Engine
Automatic Transaxle (U240E)
Automatic Transaxle (U341E)
Anti
−
Lock Brake System with Electronic Brake Force Distribution (EBD)
Supplemental Restraint System
Cruise Control System
Body Control System
f
(with Check
Mode)
f
(with Check
Mode)
f
(with Check
Mode)
f
f
f
f
f
f
f
f
f
f
In diagnostic trouble code check, it is very important to determine whether the problem indicated by the diag-
nostic trouble code is still occurring or occurred in the past but returned to normal at present. In addition,
it must be checked in the problem symptom check whether the malfunction indicated by the diagnostic
trouble code is directly related to the problem symptom or not. For this reason, the diagnostic trouble codes
should be checked before and after the symptom confirmation to determine the current conditions, as shown
in the table below. If this is not done, it may, depending on the case, result in unnecessary troubleshooting
for normally operating systems, thus making it more difficult to locate the problem, or in repairs not pertinent
to the problem. Therefore, always follow the procedure in correct order and perform the diagnostic trouble
code check.
22
Содержание Celica 2005
Страница 72: ...PP0K9 10 PREPARATION IGNITION PP 21 2005 CELICA RM1131U EQUIPMENT Spark plug cleaner 71 ...
Страница 115: ...PP3Y3 02 PP 64 PREPARATION BRAKE 2005 CELICA RM1131U RECOMMENDED TOOLS 09082 00040 TOYOTA Electrical Tester 114 ...
Страница 134: ...PP0MW 04 PREPARATION BODY PP 83 2005 CELICA RM1131U LUBRICANT Item Capacity Classification MP grease 133 ...
Страница 219: ...A21571 DI 20 DIAGNOSTICS ENGINE 1ZZ FE 2005 CELICA RM1131U 218 ...
Страница 260: ... DIAGNOSTICS ENGINE 1ZZ FE DI 61 2005 CELICA RM1131U MEMO 259 ...
Страница 261: ...DI 62 DIAGNOSTICS ENGINE 1ZZ FE 2005 CELICA RM1131U MEMO 260 ...
Страница 400: ... DIAGNOSTICS ENGINE 1ZZ FE DI 201 2005 CELICA RM1131U MEMO 399 ...
Страница 512: ...A21571 DIAGNOSTICS ENGINE 2ZZ GE DI 313 2005 CELICA RM1131U 511 ...
Страница 699: ...DI 500 DIAGNOSTICS ENGINE 2ZZ GE 2005 CELICA RM1131U MEMO 698 ...
Страница 879: ...A21571 DI 680 DIAGNOSTICS AUTOMATIC TRANSAXLE U240E 2005 CELICA RM1131U 878 ...
Страница 880: ...A21572 A22718 A22768 DIAGNOSTICS AUTOMATIC TRANSAXLE U240E DI 681 2005 CELICA RM1131U 879 ...
Страница 881: ...A21573 DI 682 DIAGNOSTICS AUTOMATIC TRANSAXLE U240E 2005 CELICA RM1131U 880 ...
Страница 882: ...A21575 DIAGNOSTICS AUTOMATIC TRANSAXLE U240E DI 683 2005 CELICA RM1131U 881 ...
Страница 970: ...A21571 DIAGNOSTICS AUTOMATIC TRANSAXLE U341E DI 769 2005 CELICA RM1131U 969 ...
Страница 971: ...A21572 A22718 A22768 DI 770 DIAGNOSTICS AUTOMATIC TRANSAXLE U341E 2005 CELICA RM1131U 970 ...
Страница 972: ...A21573 DIAGNOSTICS AUTOMATIC TRANSAXLE U341E DI 771 2005 CELICA RM1131U 971 ...
Страница 973: ...A21575 DI 772 DIAGNOSTICS AUTOMATIC TRANSAXLE U341E 2005 CELICA RM1131U 972 ...
Страница 1599: ...SF0OF 13 B07709 ECM Cover ECM SF 78 SFI ENGINE CONTROL MODULE ECM 2005 CELICA RM1131U ENGINE CONTROL MODULE ECM COMPONENTS 1598 ...
Страница 2219: ...I13605 Door Courtesy Switches Fuel Sender Gauge BE 44 BODY ELECTRICAL COMBINATION METER 2005 CELICA RM1131U 2218 ...
Страница 2220: ...I11735 Connector A Connector B BODY ELECTRICAL COMBINATION METER BE 45 2005 CELICA RM1131U 2219 ...
Страница 2299: ...BE1DE 09 I25302 Antenna Assembly Audio Assembly BE 124 BODY ELECTRICAL ANTENNA 2005 CELICA RM1131U ANTENNA LOCATION 2298 ...
Страница 2308: ...V00012 Shape Example Removal Installation Removal Installation Removal Installation BO 2 BODY CLIP 2005 CELICA RM1131U 2307 ...
Страница 2314: ...BO2ND 07 BO 8 BODY HEADLIGHT 2005 CELICA RM1131U INSTALLATION Installation is in the reverse order of removal See page BO 6 2313 ...
Страница 2348: ...BO2NO 02 H12580 Roof Side Moulding BO 42 BODY ROOF SIDE MOULDING 2005 CELICA RM1131U ROOF SIDE MOULDING COMPONENTS 2347 ...
Страница 2352: ...BO1E6 06 H12582 Side Mud Guard 9 Clips BO 46 BODY SIDE MUD GUARD 2005 CELICA RM1131U SIDE MUD GUARD COMPONENTS 2351 ...
Страница 2483: ...I14013 Fan Motor Fan Shroud Fan Nut AIR CONDITIONING CONDENSER FAN AC 59 2005 CELICA RM1131U 2482 ...