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
WARNING: This page is about a different car, the 2006 Scion tC. However, it is still accessible from the selected car via links, so may be relevant.
The front passenger side squib (dual stage - 2nd step) circuit consists of the center airbag sensor and the front passenger airbag.
The circuit instructs the SRS to deploy when deployment conditions are met.
These DTCs are recorded when a malfunction is detected in the front passenger side squib (dual stage - 2nd step) circuit.
DTC DETECTION CONDITION CHART
| DTC No. |
DTC Detection Condition |
Trouble Area |
| B1815/54 |
- The center airbag sensor assembly receives a line short circuit signal 5 times in the front passenger side squib (dual stage - 2nd step) circuit during primary check.
|
- Front passenger airbag assembly (front passenger side squib, dual stage - 2nd step)
- Center airbag sensor assembly
- Instrument panel wire
- Instrument panel wire assembly
|
| B1816/54 |
- The center airbag sensor assembly receives an open circuit signal in the front passenger side squib (dual stage - 2nd step) circuit for 2 seconds.
|
- Front passenger airbag assembly (front passenger side squib, dual stage - 2nd step)
- Center airbag sensor assembly
- Instrument panel wire
- Instrument panel wire assembly
|
| B1817/54 |
- The center airbag sensor assembly receives a short circuit to ground signal in the front passenger side squib (dual stage - 2nd step) circuit for 0.5 seconds.
|
- Front passenger airbag assembly (front passenger side squib, dual stage - 2nd step)
- Center airbag sensor assembly
- Instrument panel wire
- Instrument panel wire assembly
|
| B1818/54 |
- The center airbag sensor assembly receives a B+ short circuit signal in the front passenger side squib (dual stage - 2nd step) circuit for 0.5 seconds.
|
- Front passenger airbag assembly (front passenger side squib, dual stage - 2nd step)
- Center airbag sensor assembly
- Instrument panel wire
- Instrument panel wire assembly
|