Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Supplemental restraint system / Source voltage drop / Source voltage drop
Toyota Corolla (E120): Source voltage drop
The srs is equipped with a voltage–increase circuit (dc–dc converter) in the airbag sensor assy center in case the source voltage drops.
When the battery voltage drops, the voltage–increase circuit (dc–dc converter) functions to increase the voltage of the srs to normal voltage.
The diagnosis system malfunction display for this circuit is different from other circuits that is when the srs warning light remains lit up and the dtc is a normal code, source voltage drop is indicated.
Malfunction in this circuit is not recorded in the airbag sensor assy center, and the source voltage returns to normal, the srs warning light automatically goes off.
Wiring diagram
Other materials:
Circuit description
The throttle position sensor is mounted in the throttle body and
detects the throttle valve opening angle.
When the throttle valve is fully closed, a voltage of approximately
0.3 To 1.0 V is applied to terminal vta of the ecm. The voltage
applied to terminal vta of the ecm increases in pro ...
Rear seats
The seatbacks of the rear seats can be folded down.
The seatbacks of the rear seats can be folded down.
1 Stow the rear outside seat belt buckles and stow the rear center seat belt
buckle as shown.
2 Pull the seatback lock release knob and fold the seatback down.
CAUTION
■When foldi ...
Heater & air conditioner
Service data
Torque specification
Supplemental restraint system
Torque specification
Seat belt
Torque specification
Wiper & washer
Torque specification
Audio & visual system
Torque specification
Instrument panel/meter
Torque specification
Seat
Torque sp ...