DTC B1815/54: Short in Front Passenger Side Squib 2nd Step Circuit; DTC B1816/54: Open in Front Passenger Side Squib 2nd Step Circuit; DTC B1817/54: Short to GND in Front Passenger Side Squib 2nd Step Circuit; DTC B1818/54: Short to B+ in Front Passenger Side Squib 2nd Step Circuit: Description
The front passenger side squib 2nd step circuit consists of the airbag ECU assembly and instrument panel passenger airbag assembly.
The airbag ECU assembly uses this circuit to deploy the airbag when deployment conditions are met.
These DTCs are stored when a malfunction is detected in the front passenger side squib 2nd step circuit.
| DTC No. |
DTC Detection Condition |
Trouble Area |
| B1815/54 |
- The airbag ECU assembly receives a line short circuit signal in the front passenger side squib 2nd step circuit during primary check.
- Front passenger side squib 2nd step malfunction
- Airbag ECU assembly malfunction
|
- Instrument panel wire
- No. 3 instrument panel wire
- Instrument panel passenger airbag assembly (Front passenger side squib 2nd step)
- Airbag ECU assembly
|
| B1816/54 |
- The airbag ECU assembly receives an open circuit signal in the front passenger side squib 2nd step circuit.
- Front passenger side squib 2nd step malfunction
- Airbag ECU assembly malfunction
|
| B1817/54 |
- The airbag ECU assembly receives a short circuit to ground signal in the front passenger side squib 2nd step circuit.
- Front passenger side squib 2nd step malfunction
- Airbag ECU assembly malfunction
|
| B1818/54 |
- The airbag ECU assembly receives a short circuit to B+ signal in the front passenger side squib 2nd step circuit.
- Front passenger side squib 2nd step malfunction
- Airbag ECU assembly malfunction
|