Toyota Corolla (E170) 2014–2019 Owners Manual / Instrument cluster / Gauges and meters (multi-information display) / Instrument panel light control
Toyota Corolla (E170): Instrument panel light control
When the tail lights are on, the brightness of the instrument panel lights can be adjusted. (On vehicles with an automatic light control system, the instrument panel lights can be adjusted when the surrounding area is dark and the tail lights are on.) The brightness of the clock light can be adjusted regardless of whether the tail lights are on or off.
1 Brighter
2 Darker
Other materials:
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 ...
Circuit description
Refer to dtc p0130
Hint:
the ecm provides a pulse width modulated control circuit to adjust current
through the heater. The heated
oxygen sensor heater circuit uses a relay on the b+ side of the circuit.
Monitor description
The ecm uses the heated oxygen sensor information to regulate t ...
Inspection
1. Headlamp dimmer switch assy
Inspect light control switch continuity.
Measure the resistance according to the value(s) in
the table below.
Standard:
Inspect headlight dimmer switch continuity.
Measure the resistance according to the value(s) in
the tabl ...