What Does B1707 Mean?
This code indicates the Body Control Module (BCM) or Seat Control Module has detected a short-to-battery voltage condition in the driver's seat recline rearward switch circuit. The module detected voltage on the circuit when the switch should be open or at a lower voltage, meaning the circuit is receiving unintended battery voltage. This prevents proper operation of the power seat recline function and indicates a wiring or switch fault.
Common Causes
40%
Damaged or chafed wiring harness under the seat causing a short to battery voltage
30%
Faulty driver seat recline switch with internal short circuit
20%
Corroded or damaged connector terminals at the seat switch or module connection
10%
Failed seat control module with internal circuit fault
Diagnostic Steps
1
Step 1: Perform visual inspection of the driver seat wiring harness, looking for chafed, pinched, or damaged wires under the seat rails and at movement points. Check for signs of rubbing against metal brackets or seat tracks.
2
Step 2: Disconnect the driver seat recline switch connector and measure voltage at the BCM/module side of the circuit using a multimeter. With the switch disconnected, voltage should be 0V or within specification (typically <1V). If battery voltage is present, the short is in the wiring harness between the module and switch.
3
Step 3: If no voltage is found at the harness side, test the recline switch itself by checking resistance across the switch terminals with an ohmmeter. Activate the switch and verify proper resistance values per manufacturer specifications. A reading showing continuity to battery voltage indicates a failed switch.
4
Step 4: Inspect all connector terminals for corrosion, bent pins, or signs of moisture intrusion. Clean or repair connectors as needed and apply dielectric grease.
5
Step 5: If all wiring and switches test correctly, test the seat control module by checking input signal specifications with a multimeter or oscilloscope to verify the module is not providing false readings or has internal faults.
6
Step 6: Clear the code, operate the seat recline function through its full range of motion, and verify the fault does not return. Monitor live data if available to confirm proper circuit operation.
Estimated Repair Cost
$150 - $650
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) or Seat Control Module has detected a short-to-battery voltage condition in the driver's seat recline rearward switch circuit. The module detected voltage on the circuit when the switch should be open or at a lower voltage, meaning the circuit is rec...
The most common cause of B1707 (Seat Driver Recline Rearward Switch Circuit Short To Battery) is: Damaged or chafed wiring harness under the seat causing a short to battery voltage
Typical repair costs for B1707 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 the power seat recline function. The seat can typically be adjusted manually if needed, and this does not affect vehicle operation or safety systems. Repair at your convenience.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B1707 to identify the root cause.
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Quick Info
Category
Body
System
Body Electrical / Power Seat System
Difficulty
Type
Manufacturer
Recommended Tools
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