What Does B1763 Mean?
This code indicates that the Body Control Module (BCM) or Seat Control Module has detected a short to battery voltage in the driver's seat front vertical downward movement circuit. This means the control wire for the seat motor that lowers the front of the driver's seat is receiving unwanted positive voltage, likely from a damaged wire contacting a power source. The system has disabled this function to prevent uncontrolled seat movement or motor damage.
Common Causes
45%
Damaged or chafed wiring harness under the driver's seat causing the down circuit wire to contact a power wire
30%
Failed seat height adjustment motor with internal short to power
15%
Faulty seat control switch with internal short to battery voltage
10%
Water intrusion or corrosion in seat control module or connector causing short circuit
Diagnostic Steps
1
Step 1: Visually inspect the wiring harness under the driver's seat for obvious damage, chafing, pinch points, or wear where wires contact the seat frame or tracks. Move the seat forward and backward to check for wire movement and contact points.
2
Step 2: Disconnect the seat height motor connector and use a digital multimeter to measure voltage on the down circuit wire at the harness side with ignition on. Should read 0V; if battery voltage is present, the short is in the harness between the motor and control module.
3
Step 3: If no voltage found at motor connector, disconnect the seat control switch and measure the down circuit wire again. Presence of battery voltage indicates a faulty switch; absence indicates the motor has an internal short.
4
Step 4: Check the seat control module connector for corrosion, water damage, or pushed-out pins. Measure resistance between the down circuit terminal and ground with all components disconnected; should read open circuit (OL). Low resistance confirms a short in the harness.
5
Step 5: After repairing the identified fault, clear the code and cycle the seat through all positions multiple times to verify proper operation and confirm the code does not return.
Estimated Repair Cost
$150 - $650
Parts + labor, varies by vehicle and location
This code indicates that the Body Control Module (BCM) or Seat Control Module has detected a short to battery voltage in the driver's seat front vertical downward movement circuit. This means the control wire for the seat motor that lowers the front of the driver's seat is receiving unwanted positiv...
The most common cause of B1763 (Seat Driver Front Down Circuit Short To Battery) is: Damaged or chafed wiring harness under the driver's seat causing the down circuit wire to contact a power wire
Typical repair costs for B1763 range from $150 to $650, depending on the vehicle, location, and whether you do it yourself or go to a shop.
This is safe to continue driving as it only affects seat adjustment convenience features. The seat will remain in its current position and other seat functions may be limited, but there is no immediate safety risk or vehicle operability concern.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B1763 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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