Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Pinpoint Test N : B143A:11: Notes
Refer to Power Distribution/BCM for schematic and connector information.
Normal Operation and Fault Conditions
The BCM transmits an event notification signal which communicates crash status and SRS deployment status to the PCM by turning on the fuel pump on Field Effect Transistor (FET). When the PCM receives this event notification signal it initiates fuel cut-off.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B143A:11 | Crash Event Detection Output: Circuit Short To Ground | A continuous memory and on-demand DTC that sets in the BCM if the BCM senses a short to ground on the event notification signal circuit to the PCM. |
Possible Sources
- PCM
- BCM
- Wiring, terminals or connectors
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.