Toyota Corolla (E120): Check and replace ecu
Notice
: start an inspection of the connector from the backside of the connector on the wire harness side with the connector connected to the ecu.
When no measurement condition is specified, perform the inspection with the engine stopped and also the ignition switch on.
- First check the ecu ground circuit. If it is faulty, repair it.
If it is normal, the ecu could be faulty. In this case, replace the ecu with one that functions normally and check if the symptoms appear.
- Measure the resistance between the ecu ground
terminal and body ground.
Resistance: 1 Ω or less
- Disconnect the ecu connector, check the ground terminals on the ecu side and wire harness side for bends and check the contact pressure.
Other materials:
Circuit description
The fuel trim is related to the feedback compensation value, not to the basic
injection time. The fuel trim includes
the short–term fuel trim and the long–term fuel trim.
The short–term fuel trim is the short–term fuel compensation used to maintain
the air–fuel ratio at stoichiomet ...
Operating the touch screen
By touching the screen with your finger, you can control the multimedia system,
etc.
■ Drag*
Touch the screen with your finger, and move the screen to the desired position.
● Scrolling the lists
● Using scroll bar in lists
■ Flick*
Touch the screen with your finger an ...
Audio system types
► Without Multimedia system
► With Multimedia system
► With navigation system
Owners of models equipped with a navigation system should refer to the “Navigation
System Owner's Manual”.
■Using cellular phones
Interference may be heard through the audio system ...