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:
Inspection procedure
1 Check d squib circuit(airbag sensor assy center – horn button
assy)
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 horn button assy.
release the airbag activ ...
Circuit description
While driving uphill with cruise control activated, in order to minimize gear
shifting and provide smooth cruising
overdrive may be prohibited temporarily under some conditions.
The cruise control ecu sends o/d cut signals to the ecm as necessary and the ecm
cancels overdrive
shifting until ...
Maintenance requirements
To ensure safe and economical
driving, day-to-day care
and regular maintenance
are essential. It is the
owner's responsibility to
perform regular checks.
Toyota recommends the
maintenance below.
■Repair and replacement
It is recommended that genuine
Toyota parts be used for repairs to
ensure perf ...