Driver Seat Forward Switch Circuit Failure
Diagnostic trouble code B1717 indicates a fault in the driver seat forward switch circuit, specific to Ford vehicles. The driver seat module (DSM) detects an electrical anomaly—such as an out-of-range signal, short circuit, or open circuit—that prevents the forward movement command from being properly communicated. This can result from a faulty switch, damaged wiring, corroded connectors, or a failed seat control module.
1. Commonly Affected Makes
2. Most Common Causes
- Faulty or worn driver seat switch
- Open circuit, short to ground, or short to voltage in the switch wiring
- Corroded, loose, or bent pins in the switch connector
- Failed driver seat module (DSM)
- Excessive circuit resistance due to corroded splices or terminals
3. Symptoms You Will Notice
- Driver seat does not move forward when the switch is pressed
- Seat moves in other directions but not forward
- Intermittent or no response from the seat forward function
4. Step-by-Step Diagnosis
Check for other related codes and verify B1717 is present
Inspect the driver seat switch for physical damage or wear
Test the switch circuit for continuity, shorts, and proper voltage using a multimeter
Examine the switch connector for corrosion, loose pins, or bent terminals
If wiring and switch are okay, test the driver seat module (DSM) per service manual
5. Frequently Asked Questions
Is it safe to drive?▼
Yes, the vehicle is safe to drive. The fault only affects the driver seat forward adjustment, not the vehicle's drivability or safety systems.
How much does it cost to fix?▼
Repair costs typically range from $50 to $300, depending on whether the switch, wiring repair, or seat module replacement is needed.