What Does B1760 Mean?
This code indicates the Body Control Module (BCM) has detected a short to ground in the electrical circuit controlling the driver's seat rear vertical adjustment motor (downward movement). The BCM monitors voltage and current flow in the seat adjustment circuits and has identified that the rear down circuit is experiencing abnormally low resistance, causing current to flow directly to ground instead of through the motor. This typically occurs when damaged wiring insulation allows the circuit to contact the vehicle chassis or when internal component failures create unintended ground paths.
Common Causes
45%
Damaged, chafed, or pinched wiring harness under the driver's seat where wires contact metal seat frame or mounting brackets
30%
Failed seat adjustment motor with internal short to ground in the rear vertical movement motor windings
15%
Corroded or moisture-damaged connector terminals at the seat motor or under-seat control module creating ground path
10%
Faulty seat control switch with internal short circuit in the rear down position contacts
Diagnostic Steps
1
Step 1: Perform visual inspection of all wiring under the driver's seat, checking for chafed insulation, pinched wires at seat track mounting points, or evidence of wire contact with metal surfaces. Pay special attention to wire routing where the seat travels during adjustment.
2
Step 2: Disconnect the seat adjustment motor connector and measure resistance between the rear down circuit terminal (typically identified by wire color in vehicle-specific wiring diagram) and vehicle ground using a digital multimeter. Reading should be greater than 10k ohms; less than 10 ohms confirms short to ground downstream of connector.
3
Step 3: If short exists at motor, isolate by disconnecting motor from harness and measuring resistance of the motor's rear down terminal to motor housing ground. Reading less than 10 ohms indicates failed motor requiring replacement. Reading above 10k ohms indicates wiring harness fault between connector and BCM.
4
Step 4: If harness is suspect, inspect connector terminals for corrosion, water intrusion, or bent pins causing cross-connection to ground circuit. Clean or replace connector as needed. Check harness continuity and insulation resistance along entire length.
5
Step 5: Clear codes and cycle seat rear down function multiple times while monitoring live data on scan tool for current draw and circuit status. Verify no short condition returns and proper motor operation confirms repair.
Estimated Repair Cost
$150 - $650
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) has detected a short to ground in the electrical circuit controlling the driver's seat rear vertical adjustment motor (downward movement). The BCM monitors voltage and current flow in the seat adjustment circuits and has identified that the rear down...
The most common cause of B1760 (Seat Driver Rear Down Circuit Short To Ground) is: Damaged, chafed, or pinched wiring harness under the driver's seat where wires contact metal seat frame or mounting brackets
Typical repair costs for B1760 range from $150 to $650, depending on the vehicle, location, and whether you do it yourself or go to a shop.
This code does not affect vehicle operation or safety and the vehicle is safe to drive. The only impact is loss of driver seat rear vertical adjustment functionality, which may affect seating comfort but poses no immediate safety risk.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B1760 to identify the root cause.
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Quick Info
Category
Body
System
Power Seat Control System
Difficulty
Type
Manufacturer
Recommended Tools
OBD2 Scanner
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