DTC B1925/78 Short in Rear Passenger Side Pretensioner Squib Circuit; DTC B1926/78 Open in Rear Passenger Side Pretensioner Squib Circuit; DTC B1927/78 Short to GND in Rear Passenger Side Pretensioner Squib Circuit; DTC B1928/78 Short to B+ in Rear Passenger Side Pretensioner Squib Circuit: Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
The rear passenger side pretensioner squib circuit consists of the center airbag sensor assembly and the rear seat outer belt assembly RH.
This circuit instructs SRS to deploy when deployment conditions are met.
These DTCs are recorded when a malfunction is detected in the rear passenger side pretensioner squib circuit.
DTC DETECTION CONDITION CHART
| DTC No. |
DTC Detection Condition |
Trouble Area |
| B1925/78 |
- The center airbag sensor assembly receives a line short circuit signal 5 times in the rear passenger side pretensioner squib circuit during primary check
- Rear passenger side pretensioner squib malfunction
- Center airbag sensor assembly malfunction
|
- Floor wire
- Rear seat outer belt assembly RH (Rear passenger side pretensioner squib)
- Center airbag sensor assembly
|
| B1926/78 |
- The center airbag sensor assembly receives an open circuit signal in the rear passenger side pretensioner squib circuit for 2 seconds
- Rear passenger side pretensioner squib malfunction
- Center airbag sensor assembly malfunction
|
- Floor wire
- Rear seat outer belt assembly RH (Rear passenger side pretensioner squib)
- Center airbag sensor assembly
|
| B1927/78 |
- The center airbag sensor assembly receives a short circuit to ground signal in the rear passenger side pretensioner squib circuit for 0 5 seconds
- Rear passenger side pretensioner squib malfunction
- Center airbag sensor assembly malfunction
|
- Floor wire
- Rear seat outer belt assembly RH (Rear passenger side pretensioner squib)
- Center airbag sensor assembly
|
| B1928/78 |
- The center airbag sensor assembly receives a short circuit to B+ signal in the rear passenger side pretensioner squib circuit for 0 5 seconds
- Rear passenger side pretensioner squib malfunction
- Center airbag sensor assembly malfunction
|
- Floor wire
- Rear seat outer belt assembly RH (Rear passenger side pretensioner squib)
- Center airbag sensor assembly
|