DTC B1810-53: Short in Driver Side Squib 2nd Step Circuit; DTC B1811-53: Open in Driver Side Squib 2nd Step Circuit; DTC B1812-53: Short to GND in Driver Side Squib 2nd Step Circuit; DTC B1813-53: Short to B+ in Driver Side Squib 2nd Step Circuit [10/2014 - 05/2019]: Description
The driver side squib 2nd step circuit consists of the airbag ECU assembly, spiral with sensor cable sub-assembly and horn button assembly.
The circuit instructs the SRS to deploy when deployment conditions are met.
These DTCs are stored when a malfunction is detected in the driver side squib 2nd step circuit.
| DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
| B1810/53 |
Short in Driver Side Squib 2nd Step Circuit |
One of the following conditions is met:
- The airbag ECU assembly detects a line short circuit signal 5 times in the driver side squib 2nd step circuit during the primary check.
- A horn button assembly (driver side squib 2nd step) malfunction.
- A spiral with sensor cable sub-assembly malfunction.
- An airbag ECU assembly malfunction.
|
- Instrument panel wire
- Spiral with sensor cable sub-assembly
- Horn button assembly (Driver side squib 2nd step)
- Airbag ECU assembly
|
| B1811/53 |
Open in Driver Side Squib 2nd Step Circuit |
One of the following conditions is met:
- The airbag ECU assembly detects an open circuit signal in the driver side squib 2nd step circuit for 2 seconds.
- A horn button assembly (driver side squib 2nd step) malfunction.
- A spiral with sensor cable sub-assembly malfunction.
- An airbag ECU assembly malfunction.
|
- Instrument panel wire
- Spiral with sensor cable sub-assembly
- Horn button assembly (Driver side squib 2nd step)
- Airbag ECU assembly
|
| B1812/53 |
Short to GND in Driver Side Squib 2nd Step Circuit |
One of the following conditions is met:
- The airbag ECU assembly detects a short circuit to ground signal in the driver side 2nd step circuit for 0.5 seconds.
- A horn button assembly (driver side squib 2nd step) malfunction.
- A spiral with sensor cable sub-assembly malfunction.
- An airbag ECU assembly malfunction.
|
- Instrument panel wire
- Spiral with sensor cable sub-assembly
- Horn button assembly (Driver side squib 2nd step)
- Airbag ECU assembly
|
| B1813/53 |
Short to B+ in Driver Side Squib 2nd Step Circuit |
One of the following conditions is met:
- The airbag ECU assembly detects a short circuit to B+ signal in the driver side squib 2nd step circuit for 0.5 seconds.
- A horn button assembly (driver side squib 2nd step) malfunction.
- A spiral with sensor cable sub-assembly malfunction.
- An airbag ECU assembly malfunction.
|
- Instrument panel wire
- Spiral with sensor cable sub-assembly
- Horn button assembly (Driver side squib 2nd step)
- Airbag ECU assembly
|