Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / System voltage / Monitor description
Toyota Corolla (E120): Monitor description
The battery supplies electricity to the ecm even when the ignition switch is off. This electricity allows the ecm store data such as dtc history, freeze frame data, fuel trim values, and other data. If the battery voltage falls below a minimum level, the ecm will conclude that there is a fault in the power supply circuit. At the next engine start, the ecm will turn on the mil and a dtc will be set.
Monitor strategy
*1: The dtc is set immediately. The mil will be illuminated after the next engine start.
Typical enabling conditions
Typical malfunction thresholds
Wiring diagram
Other materials:
SRS airbags
The SRS airbags inflate when the vehicle is subjected to certain types of
severe impacts that may cause significant injury to the occupants. They work together
with the seat belts to help reduce the risk of death or serious injury.
◆ SRS front airbags
1 SRS driver airbag/front passenge ...
Inspection
1. Inspect defogger relay (marking: def)
Remove the defogger relay from the instrument panel
j/b.
inspect the defogger relay.
Standard:
If the result is not as specified, replace the relay ...
Tape is tangled due to incorrect tape speed or
auto–reverse malfunction
Inspection procedure
1 Check for any foreign object
Check for any foreign object.
Check that no foreign material and troubles are detected in the radio
receiver assembly cassette
tape player.
Standard: no foreign material and trouble detected.
2 Replace cassette tape with an ...