Toyota Corolla (E120): Replacement
Hint
: components:
1. Precaution
2. Disconnect battery negative terminal
3. Remove horn button assy
- Place the front wheels facing straight ahead.
- using a torx socket wrench (t30), loosen the 2 torx screws until the groove along the screw circumference catches on the screw case.
- Pull out the horn button assy from the steering wheel assy.
- using a screwdriver, release the lock part of each airbag connector and disconnect the 2 airbag connectors.
4. Inspect horn button assy
5. Install horn button assy
- connect the airbag connectors and horn connector.
- install the horn button assy after confirming that the circumference groove of the torx screws is caught on the screw case.
- using a torx socket wrench (t 30), install the 2 screws.
Torque: 8.8 Nvm (90 kgfvcm, 78 in.Vlbf)
6. Inspect srs warning light
Other materials:
Thermostat
Replacement
1. Remove engine under cover rh
2. Drain coolant
3. Remove fan and generator v belt
4. Remove generator assy
Disconnect the wire clamp from the wire clip on the rectifire
end frame.
remove the rubber cap and nut, and disconnect the alternator
wire.
d ...
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.
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Circuit description
The seat belt buckle switch (lh) circuit consists of the airbag sensor assy
center and front seat inner belt
assy (lh).
Dtc b0126/b0127/27 is recorded when a malfunction is detected in the seat belt
buckle switch (lh) circuit.
Wiring diagram
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