What Does B1719 Mean?
This code indicates the Body Control Module (BCM) has detected a short to battery voltage in the driver's seat forward adjustment switch circuit. The BCM monitors the seat control switch circuits and has identified that the forward switch signal wire is receiving constant battery voltage when it should not be, typically when the switch is not being pressed. This electrical fault prevents proper operation of the power seat forward adjustment function.
Common Causes
40%
Damaged or pinched wiring harness under the driver's seat causing short to power wire
30%
Faulty driver seat switch assembly with internal short to voltage
20%
Corroded or damaged seat switch connector causing cross-circuit contact
10%
Failed seat control module or BCM internal circuit fault
Diagnostic Steps
1
Step 1: Visually inspect all wiring harness under and around the driver's seat for damage, pinching, chafing, or signs of contact with seat rails or mechanisms. Check for any obvious wire insulation damage or exposed copper
2
Step 2: Disconnect the driver seat switch connector and use a digital multimeter to measure voltage at the forward switch signal wire terminal (BCM side). Should read 0V with ignition on; if battery voltage present, wiring harness has short to power between BCM and switch
3
Step 3: With switch disconnected, test resistance between the forward switch signal terminal and battery positive at the switch connector (switch side). Should read infinite resistance (open circuit); if continuity exists, replace seat switch assembly
4
Step 4: Inspect seat switch connector for corrosion, pushed-back pins, or moisture intrusion. Clean connector terminals with electrical contact cleaner and verify proper pin seating. Check for any signs of terminal-to-terminal contact
5
Step 5: If no wiring or switch faults found, perform bidirectional control test of seat motor using scan tool to verify BCM functionality. Monitor live data while manually operating seat to confirm BCM is receiving proper switch inputs
6
Step 6: Clear codes, reconnect all components, cycle seat switch through all positions multiple times, and verify code does not return. Test seat operation in all directions to confirm repair
Estimated Repair Cost
$120 - $450
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) has detected a short to battery voltage in the driver's seat forward adjustment switch circuit. The BCM monitors the seat control switch circuits and has identified that the forward switch signal wire is receiving constant battery voltage when it sho...
The most common cause of B1719 (Seat Driver Forward Switch Circuit Short To Battery) is: Damaged or pinched wiring harness under the driver's seat causing short to power wire
Typical repair costs for B1719 range from $120 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to continue driving as this only affects power seat adjustment functionality. The seat may not move forward electrically, but does not impact vehicle operation or safety systems. Repair at convenience unless seat position adjustment is needed for proper driving posture.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B1719 to identify the root cause.
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Quick Info
Category
Body
System
Body Comfort and Convenience System
Difficulty
Type
Manufacturer
Recommended Tools
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