What Does B1717 Mean?
This code indicates the Body Control Module (BCM) has detected an electrical fault in the driver's seat forward position switch circuit. The BCM monitors the switch input to control power seat motor operation and has identified either an open circuit, short circuit, or improper voltage signal from the forward switch. This prevents the seat from moving forward via the switch command, though the seat motor and other directional switches may still function normally.
Common Causes
40%
Failed or worn driver seat forward position switch with internal contact failure
30%
Broken or damaged wiring between seat switch and BCM or seat control module
20%
Corroded or loose electrical connector at seat switch or control module
10%
Failed seat control module or BCM internal circuit failure
Diagnostic Steps
1
Step 1: Perform visual inspection of driver seat switch assembly for physical damage, wear, or debris. Test the forward switch mechanically for proper actuation and feel compared to other directional switches.
2
Step 2: Using a digital multimeter, backprobe the forward switch connector while operating the switch. Verify voltage changes from approximately 0V to 5V or 12V (depending on manufacturer) when switch is activated. Check for continuity and proper ground circuit.
3
Step 3: Inspect all wiring harnesses from the seat switch to the seat control module/BCM, checking for chafing, breaks, or pinch points under the seat tracks and along seat mounting points. Pay special attention to flex points where seat movement occurs.
4
Step 4: Disconnect seat switch connector and measure resistance across forward switch terminals while actuating the switch. Compare readings to manufacturer specifications (typically 0-5 ohms closed, infinite ohms open). If out of specification, replace switch assembly.
5
Step 5: If switch and wiring test good, check voltage supply and ground at the switch connector with ignition on. Verify BCM is providing proper reference voltage (typically 5V or 12V) and ground is present (less than 0.1V).
6
Step 6: Clear codes, reinstall all connectors, cycle the seat switch through all positions multiple times, and verify code does not return. Road test and recheck for proper seat operation and code status.
Estimated Repair Cost
$75 - $400
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) has detected an electrical fault in the driver's seat forward position switch circuit. The BCM monitors the switch input to control power seat motor operation and has identified either an open circuit, short circuit, or improper voltage signal from t...
The most common cause of B1717 (Seat Driver Forward Switch Circuit Failure) is: Failed or worn driver seat forward position switch with internal contact failure
Typical repair costs for B1717 range from $75 to $400, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to continue driving as this affects comfort and convenience only. The seat will remain in its current position but cannot be moved forward electrically, which may affect proper driving position and could be a safety concern if the driver cannot reach pedals properly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B1717 to identify the root cause.
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Quick Info
Category
Body
System
Power Seat Control System
Difficulty
Type
Manufacturer
Recommended Tools
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