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: 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 driver side squib circuit consists of the center airbag sensor assembly, the spiral cable and the steering pad.
The circuit instructs SRS to deploy when deployment conditions are met.
These DTCs are recorded when a malfunction is detected in the driver side squib circuit
DTC DETECTION CONDITION CHART
| DTC No. |
DTC Detection Condition |
Trouble Area |
| B1800/51 |
- The center airbag sensor assembly receives a line short circuit signal 5 times in the driver side squib circuit during primary check
- Driver side squib malfunction
- Spiral cable malfunction
- Center airbag sensor assembly malfunction
|
- Instrument panel wire
- Spiral cable
- Steering pad (Driver side squib)
- Center airbag sensor assembly
|
| B1801/51 |
- The center airbag sensor assembly receives an open circuit signal in the driver side squib circuit for 2 seconds
- Driver side squib malfunction
- Spiral cable malfunction
- Center airbag sensor assembly malfunction
|
- Instrument panel wire
- Spiral cable
- Steering pad (Driver side squib)
- Center airbag sensor assembly
|
| B1802/51 |
- The center airbag sensor assembly receives a short circuit to ground signal in the driver side squib circuit for 0 5 seconds
- Driver side squib malfunction
- Spiral cable malfunction
- Center airbag sensor assembly malfunction
|
- Instrument panel wire
- Spiral cable
- Steering pad (Driver side squib)
- Center airbag sensor assembly
|
| B1803/51 |
- The center airbag sensor assembly receives a short circuit to B+ signal in the driver side squib circuit for 0 5 seconds
- Driver side squib malfunction
- Spiral cable malfunction
- Center airbag sensor assembly malfunction
|
- Instrument panel wire
- Spiral cable
- Steering pad (Driver side squib)
- Center airbag sensor assembly
|