Malfunction Indicator Lamp Check; Diagnostic Trouble Code Check - Toyota 3VZ–FE Troubleshooting Manual

ENGINE TROUBLESHOOTING
Diagnosis Inspection (Normal Mode)
MALFUNCTION INDICATOR LAMP
CHECK
1. The Malfunction Indicator Lamp will come on when the
ignition switch is turned ON and the engine is not running.
HINT: If the Malfunction Indicator Lamp does not light up, pro-
ceed to troubleshooting of the combination meter (See page
BE–144).
2. When the engine is started, the Malfunction Indicator Lamp
should go off.
If the light remains on, the diagnosis system has detected a
malfunction or abnormality in the system.

DIAGNOSTIC TROUBLE CODE CHECK

1. Turn ignition switch on.
2. Using SST, connect terminals between TE1 and E1 of Data
link connector 2 or 1.
SST 09843–18020
3. Read the diagnostic trouble code from Malfunction Indicator
Lamp.
HINT: If a diagnostic trouble code is not output, check the TE1
terminal circuit (See page EG–456).
As an example, the blinking patterns for codes; normal, 12
and 31 are as shown on the illustration.
4. Check the details of the malfunction using the diagnostic
trouble code table on page EG–324.
5. After completing the check, disconnect terminals TE1 and
E1, and turn off the display.
HINT: In the event of 2 or more malfunction codes, indication
will begin from the smaller numbered code and continue in
order to the larger.
– DIAGNOSIS SYSTEM
EG–321