Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Cruise control system / Terminals of ecu
Toyota Corolla (E120): Terminals of ecu
Oscilloscope wave (*1)
Hint
:
- terminal: od – gnd
- gauge set: 5 v / div, 50 ms / div
- condition: during cruise control driving o/d switch on.
Other materials:
Check mode procedure
Hint:
hand–held tester only:
compared to the normal mode, the check mode has more sensing
ability to detect malfunctions. Furthermore, the same diagnostic
items which are detected in the normal mode can also be
detected in the check mode.
1. Check mode procedure(using the hand–held tester) ...
Malfunction in tachometer
Wiring diagram
Inspection procedure
Check output value of ecm.
Connect the hand–held tester to dlc3.
Turn the ignition switch to on and push the hand–held tester main switch
on.
Select the data list mode on the hand–held tester.
2 Inspect combinatio ...
Monitor description
While the engine is being cranked, the battery positive voltage is applied to
terminal sta of the ecm.
If the ecm detects the starter control signal (sta) while the vehicle is
driving, it will conclude that there is
a fault in the starter control circuit. The ecm will turn on the mil and a d ...