Toyota Corolla (E120): Circuit description

The d squib circuit consists of the airbag sensor assy center, spiral cable sub–assy and horn button assy.

It causes the srs to deploy when the srs deployment conditions are satisfied.

Dtc b1180/17 is recorded when a short is detected in the d squib circuit (2nd step).

Wiring diagram

Wiring diagram

Inspection procedure

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    Adjustment
    1. Check and adjust brake pedal height Inspect brake pedal height. Pedal height from asphalt sheet: m/t: 134.9 – 144.9 Mm (5.311 – 5.703 In.) A/t: 136.0 – 146.0 Mm (5.353 – 5.747 In.)  Disconnect the connector from the stop lamp switch.  Remove the stop lamp ...

    Replacement
    1. Remove engine under cover rh 2. Drain coolant 3. Remove front wheel rh 4. Remove cylinder head cover no.2 Remove the 2 nuts, 2 clips and cylinder head cover. 5. Remove fan and generator v belt Turn the v–ribbed belt tensioner slowly clockwise and loosen it. Then, remove ...

    Checking and replacing fuses
    If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary. 1 Turn the engine switch off. 2 Open the fuse box cover. ► Engine compartment Push the tab in and lift the lid off. ► Under the driver’s side i ...