Trouble Diagnoses — Self-diagnosis Mode V
EF & EC-75flowchartSelf-diagnosis — Mode V
In real-time diagnosis, if any of the following items are judged to be faulty, a malfunction is indicated immediately.
• Crank angle sensor (180° signal & 1° signal)
• Ignition signal
• Air flow meter output signal
Consequently, this diagnosis is a very effective measure to diagnose whether the above systems cause the malfunction or not, during driving test. Compared with self-diagnosis, real-time diagnosis is very sensitive, and can detect malfunctioning conditions in a moment. Further, items regarded to be malfunctions in this diagnosis are not stored in E.C.U. memory.
SELF-DIAGNOSITIC PROCEDURE
Self-diagnostic Procedure — Mode V
1
DIAGNOSIS START
2
Pull out E.C.U. from dash side panel.
3
Start engine.
4
Turn diagnostic mode selector on E.C.U. fully clockwise.
Flashing 5 times
5
After the inspection lamps have flashed 5 times, turn diagnostic mode selector fully counterclockwise.
6
Mode V
7
Make sure that inspection lamps are not flashing for 5 min. when idling or racing.
O.K.
Turn ignition switch "OFF".
Turn ignition switch "OFF".
Reinstall the E.C.U. in place.
DIAGNOSIS END
N.G.
8
If flashing, count number of flashes.
9
Turn ignition switch "OFF".
10
See decoding chart.
11
Perform real-time diagnosis system inspection. If malfunction part is found, repair or replace it.
return to step 2
CAUTION
In real-time diagnosis, pay attention to inspection lamp flashing. E.C.U. displays the malfunction code only once, and does not memorize the inspection.
See also
decoding chart