Toyota Corolla (E120): Basic inspection
When the malfunction is not confirmed in the dtc check, troubleshooting should be carried out in all the possible circuits considered as causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location causing the problem can be found quickly and efficiently. Therefore, using this check is essential in the engine troubleshooting.
1 Check battery voltage
Notice
: carry out this check with the engine stopped and ignition switch off.
Ng charge or replace battery
2 Check if engine will crank
Ng proceed to problem symptoms table on page
3 Check if engine starts
Ng go to step 7
4 Check air filter
- Visually check that the air filter is not excessively dirty or oily.
Notice
: if necessary, clean the filter with compressed air. First blow from the inside thoroughly, then blow from the outside of the filter.
Ng clean or replace
5 Check idle speed
Ng proceed to problem symptoms table on page
6 Check ignition timing
Ng proceed to page 14–1 and continue to troubleshoot
Proceed to problem symptoms table on page
7 Check fuel pressure
Ng proceed to page 11–1 and continue to troubleshoot
8 Check for spark
Ng proceed to page 18–1 and continue to troubleshoot
Proceed to problem symptoms table on page
Other materials:
Instrument panel/meter
Preparation
Sst
Recomended tools
Equipment
Seat
Preparation
Equipment
Theft deterrent & door lock
Preparation
Recomended tools
...
Evap monitor (vacuum pressure monitor)
Notice:
a cold soak must be performed prior to conducting the drive pattern to complete
the internal pressure
readiness monitor.
Cold soak preconditions
The monitor will not run unless:
mil is off.
Fuel level is approximately 1/2 to 3/4.
Altitude is 7800 feet (2400 m) or less.
...
Hydraulic test
1. Perform hydraulic test
Measure the line pressure.
Notice:
Do the test at normal operation atf temperature 50 to 80 °c (122 to
176 °f).
The line pressure test should always be carried out in pairs. One
technician should observe
the conditions of wheels or wheel stopper outsi ...