Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Supplemental restraint system / Seat position airbag sensor
malfunction
Toyota Corolla (E120): Seat position airbag sensor malfunction
Dtc b1153/25 seat position airbag sensor malfunction
Other materials:
Inspection procedure
1 Check operation(stop lamp swtich assy)
Check that the stop light comes on when the brake pedal is depressed,
and turns off when the brake
pedal is released.
2 Input signal check
See input signal check on page 05–745.
check the indicator light when the brake pedal ...
Circuit description
When the ignition switch is turned on, battery positive voltage is applied to
the coilwhich closes the contacts
of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm.
This signal causes current to flow to the coil, closing the contacts of the efi
relay and supplyin ...
Rear seats
► Type A
1 Up
Pull the head restraints up.
2 Down
Push the head restraint down while pressing the lock release button.
► Type B
1 Up
Pull the head restraints up.
2 Down
Push the head restraint down while pressing the lock release button.
■Removing the head restraints ...