Driver Airbag Circuit Short to Battery
The B1916 code indicates a short to battery voltage in the driver airbag circuit, specific to Ford Motor Company vehicles. The Restraints Control Module (RCM) has detected abnormally high voltage on the driver-side airbag inflator circuit, typically caused by the inflator wiring contacting a constant 12V source. The airbag system will disable the affected circuit to prevent accidental deployment.
1. Commonly Affected Makes
2. Most Common Causes
- Damaged driver airbag inflator wiring with deteriorated insulation
- Short to 12V power in the driver airbag harness
- Faulty clock spring with internal short circuit
- Bent or corroded pins in the driver airbag connector causing a short
- Internal failure of the Restraints Control Module (RCM) (less common)
3. Symptoms You Will Notice
- Airbag warning light illuminated on the dashboard
- Driver airbag may be deactivated
4. Step-by-Step Diagnosis
Scan for codes and confirm B1916 is present
Visually inspect driver airbag wiring for damage or contact with 12V sources
Test clock spring continuity and check for shorts
Inspect airbag connector pins for corrosion or damage
If all else fails, test or replace the RCM
5. Frequently Asked Questions
Is it safe to drive?▼
No, it is not safe to drive. The airbag system may be disabled, increasing injury risk in a crash. Have the vehicle towed to a repair shop.
How much does it cost to fix?▼
Repair costs typically range from $200 to $800, depending on the cause. Clock spring replacement is around $200-$400, while RCM replacement can be $500-$800.