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:
Inspection procedure
1 Check p/t squib(lh) circuit(airbag sensor assy center – front seat
outer belt assy lh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the seat belt pretensio ...
Display and menu icons
■ Display
Driving support system status
display area
Displays an image when the following
systems are operating and a
menu icon other than is
selected:
LTA (Lane Tracing Assist)
LDA (Lane Departure Alert)
Dynamic radar cruise control
RSA (Road Sign Assist) (if
equipped)
Content disp ...
Initialization
Select “Initialize” using .
● Initializing the sound settings
Select “Sound setting” using and press
(YES).
For details about sound settings: ● Initializing the device information
Select “Car Device Info” using and
press (YES).
Automatic connection of a portable ...