Toyota Corolla (E170): Indicators
The indicators inform the driver of the operating state of the vehicle’s various systems.

*1: Vehicles without a smart key system: These lights turn on when the engine switch is turned to the “ON” position to indicate that a system check is being performed. They will turn off after the engine is started, or after a few seconds. There may be a malfunction in a system if a light does not come on, or if the lights do not turn off. Have the vehicle inspected by your Toyota dealer.
Vehicles with a smart key system: These lights turn on when the engine switch is turned to IGNITION ON mode to indicate that a system check is being performed. They will turn off after the engine is started, or after a few seconds. There may be a malfunction in a system if a light does not come on, or if the lights do not turn off. Have the vehicle inspected by your Toyota dealer.
*2: If equipped
*3: The light flashes to indicate that the system is operating.
*4: The light does not turn on when the system is disabled.
*5: This light illuminates on the center panel.
CAUTION
■If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning lights not come on when you start the engine, this could mean that these systems are not available to help protect you in an accident, which could result in death or serious injury. Have the vehicle inspected by your Toyota dealer immediately if this occurs.
Other materials:
Overhaul
1. Remove roof headlining assy
2. Remove sliding roof glass sub–assy
using a torx wrench (t25), remove the 4 screws the sliding roof
glass.
pull the glass upward to remove it.
3. Remove sliding roof weatherstrip
4. Remove sliding roof drive gear sub–assy
Notice:
...
Circuit description
The ecm compares the two waveforms of the heated oxygen sensors located
before and after the catalyst
to determine whether or not the catalyst performance has deteriorated.
Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen
sensor in front of the catalyst
alterna ...
Inspection procedure
1 Check front airbag sensor (lh) circuit (to b+)(airbag sensor assy
center – airbag sensor front 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 airbag ...


