B1792 Ford Code - Autolamp Sensor Input Circuit Short to Battery
Quick Answer
With the headlamp switch turned to the AUTOLAMPS ON position, a battery voltage signal is sent to the Vehicle Security Module (VSM). Common causes include Faulty Autolamp Sensor, Autolamp Sensor harness is open or shorted, Autolamp Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1792 Ford indicates Autolamp Sensor Input Circuit Short to Battery.
- Common causes
- Common causes include Faulty Autolamp Sensor, Autolamp Sensor harness is open or shorted, Autolamp Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B1792 Ford Description
What are the Possible Causes of the DTC B1792 Ford?
- Faulty Autolamp Sensor
- Autolamp Sensor harness is open or shorted
- Autolamp Sensor circuit poor electrical connection
- Faulty Headlamp Switch
- Faulty Vehicle Security Module (VSM)
How to Fix the DTC B1792 Ford?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1792 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B1792 Ford Code
1. What does the OBDII code B1792 mean on a Ford vehicle?
B1792 indicates an issue with the Autolamp Sensor Input Circuit, specifically a short to the battery.
2. What are the symptoms of the B1792 code in a Ford vehicle?
Common symptoms include malfunctioning automatic headlights, headlights staying on constantly, or dashboard warning lights.
3. What causes the B1792 code to appear?
The code is typically triggered by a short circuit in the autolamp sensor wiring, a faulty autolamp sensor, or a damaged headlight control module.
4. Can I still drive my Ford vehicle with the B1792 code present?
Yes, the vehicle is still drivable, but the automatic headlight function may not work correctly, which could affect visibility and safety.
5. How do I diagnose the B1792 code?
Start by inspecting the wiring and connectors for the autolamp sensor for signs of damage or corrosion. Use a multimeter to check for a short to the battery.
6. What repairs are needed to fix the B1792 code?
Repairs may include fixing or replacing damaged wiring, replacing a faulty autolamp sensor, or repairing/replacing the headlight control module.
7. How much does it cost to repair a B1792 code issue?
The cost varies depending on the exact cause but typically ranges from $100 to $300 for diagnosis and repairs, excluding labor costs.
8. Can a faulty autolamp sensor trigger the B1792 code?
Yes, a malfunctioning autolamp sensor can cause the circuit to short, leading to this code.
9. How can I prevent the B1792 code from occurring?
Regularly inspect the sensor wiring for wear and keep the connectors clean and free of corrosion to prevent electrical issues.
10. Will resetting the code fix the B1792 issue permanently?
No, resetting the code will only clear it temporarily. You must address the underlying cause to prevent the code from returning.
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