Toyota Celica 2005 Repair Manual page 2270

9. DIAGNOSIS FUNCTION
(a) Diagnosis start−up
For shifting to diagnosis mode, turn the ignition switch ON and push the "DISC" switch 3 times while
pressing "ch1" and "ch6" switches.
HINT:
To exit the diagnosis mode, push the "DISC" switch for 1.7 sec. or turn the ignition switch to ACC or OFF.
(b) Element check mode
After the diagnosis start−up, the system enters the element check mode. Check that the all elements
come on.
HINT:
By pressing the "SEEK UP" switch, the system enters the "Service Check Mode".
(c) Switch check mode
(1) Element check mode is started at the same time with the switch check mode.
(2) Check that there is a beep sound when any switch is pressed.
HINT:
By pressing "SEEK UP" switch, the system enters the "Service Check Mode".
"SEEK DOWN"
Switch
(d) Service check mode
(1) After the element check and switch check is completed, the system enters service check mode
when "SEEK UP" switch is pressed.
(2) Error codes over the tuner and connected equipments are displayed on the screen of the tuner.
Results for each check are displayed as follows:
good:
S
No DTC is detected for both "System Check Confirmation" and "Diagnosis Memory Re-
sponse".
nCon:
S
The component does not respond to the "Diagnosis On Instruction" command.
Applicable only to AVC − LAN.
ECHn:
S
Application of new version is confirmed by the "Diagnosis On Check", and there is one or
more DTC which indicates "Replacement" in the "System Check Result Response" or
"Diagnosis Memory Response".
CHEC:
S
Application of new version is confirmed by the "Diagnosis On Check", and there is no DTC
which indicates "Replacement" in the "System Check Result Response" or "Diagnosis
Memory Response", but one or more DTC which indicates "Check" is identified.
2005 CELICA (RM1131U)
BODY ELECTRICAL
"1ch" Switch
"3ch" Switch
"2ch" Switch
"SEEK UP"
Switch
− AUDIO SYSTEM
"5ch" Switch
"4ch" Switch
"DISC" Switch
2269
"6ch" Switch
BE−95
I24383