Toyota Corolla (E120): Circuit description

The airbag front rh sensor circuit consists of the airbag sensor assy center and airbag front rh sensor.

Dtc b1156/b1157/15 is recorded when a malfunction is detected in the airbag front rh sensor circuit.

Wiring diagram

Wiring diagram

Inspection procedure

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    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 ...

    Front differential oil seal (atm)
    Replacement 1. Remove front wheels 2. Remove engine under cover rh 3. Remove engine under cover lh 4. Drain automatic transaxle fluid  remove the drain plug, gasket and drain atf.  install a new gasket and drain plug. Torque: 17.5 Nvm (178 Kgf·cm, 13 ft·lbf) 5. Remove fron ...

    General information
    There are many ecu controlled systems used in the corolla. In general, ecu controlled system are considered to be very intricate and require a high level of technical knowledge and expert skill to troubleshoot. The fact is, however, that if you proceed by inspecting the circuits one by one, ...