Toyota Corolla (E120): Short in d squib (2nd step) circuit (to b+)

Dtc b1183/22 short in d squib (2nd step) circuit (to b+)

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Circuit description
The ecm compares the two waveforms of the heated oxygen sensors located before and after the catalyst to determine whether or not the catalyst performance has deteriorated. Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen sensor in front of the catalyst alterna ...

Phone screen
To display the screen shown below, press the switch on the steering wheel or the button. Several functions are available to operate on each screen that is displayed by selecting the 4 tabs. 1 Device name 2 Bluetooth® connection status ■ Telephone switch ■ Microphone υ ...

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 ca ...