B1765: Seat Driver Forward Circuit Failure
Diagnostic trouble code B1765 indicates a fault in the driver seat forward circuit, specific to Ford Motor Company and its associated brands. The Seat Control Module (SCM) or Body Control Module (BCM) detects an electrical anomaly—such as an open circuit, short circuit, or abnormal resistance—in the circuit controlling the forward/rearward movement of the driver seat. This code is set when the system monitors the seat motor circuit and finds a condition that prevents proper operation.
1. Commonly Affected Makes
2. Most Common Causes
- Damaged or internally worn driver seat motor
- Open circuit, short to ground, or short to voltage in the seat forward motor wiring
- Corroded, loose, or damaged seat motor connector
- Faulty Seat Control Module (SCM) or seat memory module
- Internal failure of the driver seat control switch
- Blown fuse for the seat circuit
- Mechanical obstruction in the seat tracks causing motor overload
3. Symptoms You Will Notice
- Driver seat does not move forward or backward
- Seat moves intermittently or only in one direction
- Seat moves slowly or with unusual noises
- Seat position memory function inoperative
4. Step-by-Step Diagnosis
Check for blown fuses related to the seat circuit and replace if necessary.
Inspect the seat motor connector and wiring for damage, corrosion, or loose connections.
Test the seat motor by applying direct power and ground to verify operation.
Check the seat control switch for proper continuity and function.
Verify mechanical freedom of the seat tracks and lubricate or repair as needed.
If all else is normal, test the SCM/BCM for proper output signals and replace if faulty.
5. Frequently Asked Questions
Is it safe to drive?▼
Yes, it is generally safe to drive, but the seat may not adjust properly, which can affect comfort and driving position. Have it diagnosed soon to avoid further electrical issues.
How much does it cost to fix?▼
Repair costs typically range from $100 to $400, depending on the cause. A simple fuse or switch replacement may be under $100, while a seat motor or module replacement can exceed $300.