DTC B1800/51: Short in Driver Side Squib Circuit; DTC B1801/51: Open in Driver Side Squib Circuit; DTC B1802/51: Short to GND in Driver Side Squib Circuit; DTC B1803/51: Short to B+ in Driver Side Squib Circuit [08/2013 - ]: Description
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
The driver side squib circuit consists of the airbag sensor assembly, spiral cable with sensor sub-assembly and horn button assembly.
The airbag sensor assembly uses this circuit to deploy the airbag when deployment conditions are met.
These DTCs are stored when a malfunction is detected in the driver side squib circuit.
| DTC No. |
DTC Detection Condition |
Trouble Area |
| B1800/51 |
- The airbag sensor assembly receives a line short circuit signal in the driver side squib circuit during primary check.
- Spiral cable with sensor sub-assembly malfunction
- Driver side squib malfunction
- Airbag sensor assembly malfunction
|
- Instrument panel wire
- Spiral cable with sensor sub-assembly
- Horn button assembly (Driver side squib)
- Airbag sensor assembly
|
| B1801/51 |
- The airbag sensor assembly receives an open circuit signal in the driver side squib circuit.
- Spiral cable with sensor sub-assembly malfunction
- Driver side squib malfunction
- Airbag sensor assembly malfunction
|
| B1802/51 |
- The airbag sensor assembly receives a short circuit to ground signal in the driver side squib circuit.
- Spiral cable with sensor sub-assembly malfunction
- Driver side squib malfunction
- Airbag sensor assembly malfunction
|
| B1803/51 |
- The airbag sensor assembly receives a short circuit to B+ signal in the driver side squib circuit.
- Spiral cable with sensor sub-assembly malfunction
- Driver side squib malfunction
- Airbag sensor assembly malfunction
|