Toyota Corolla (E120): Circuit description

The side airbag sensor assy (rh) circuit consists of the diagnosis circuit and lateral deceleration sensor, etc.

It receives signals from the lateral deceleration sensor, judges whether or not the srs must be activated, and detects diagnosis system malfunction.

Dtc b1140/32 is recorded when occurrence of a malfunction in the side airbag sensor assy (rh) is detected.

Wiring diagram

Wiring diagram

Inspection procedure

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    Replacement
    1. Work for preventing gasoline from spilling out 2. Remove front wheels 3. Remove engine under cover rh 4. Remove engine under cover lh 5. Drain coolant 6. Remove cylinder head cover no.2 Remove the 2 nuts, 2 clips and cylinder head cover. 7. Disconnect radiator hose inlet &nb ...

    Diagnostic trouble code chart
    Hint: when the srs warning light remains lit up and the dtc is the normal code, this means a voltage source drops. This malfunction is not stored in memory by the airbag sensor assy center and if the power source voltage returns to normal, the srs warning light will autom ...

    How to proceed with troubleshooting
    1 Vehicle brought in 2 Customer problem analysis check and symptom check 3 Problem symptoms table Without applicable symptoms, proceed to ”a”  with applicable symptoms, proceed to ”b” 4 Perform troubleshooting in the following method, depending on malfunction symptom ...