B1713

Code

Other B — Body

Seat Driver Front Down Switch Circuit Failure

Brand: Other

Type: B — Body

Views: UK: 21 EN: 51 RU: 40

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Driver seat will not move downward when using the down switch
Intermittent or erratic seat down operation (works sometimes)
Seat may move in the wrong direction or stop mid-travel
Related seat functions (memory, other seat directions) may be affected or behave erratically
DTC stored and possibly a warning indicator or message depending on vehicle

Read and record DTC(s) and freeze-frame data with a diagnostic scanner
Perform a visual inspection of the driver seat switch, connectors, and wiring harness under the seat for damage, pinched wires, or corrosion
Check relevant fuses and relays for the seat/seat control module
Operate the seat controls and observe behavior while listening for motor operation
Wiggle the harness and connectors while operating the switch to see if the fault is provoked or cleared

Switch closed: continuity between switch terminals (near 0 Ω) when pressed; open circuit when released
Back-probe switch connector: expected change in voltage or continuity when actuated — typically switch will pull a module input to ground or to battery voltage depending on vehicle design
Connector supply: battery voltage present at the controller’s supply circuit (approx. 11–14 V with ignition on)
Module input idle voltage: depends on design (0 V or battery voltage) — consult vehicle service manual for exact levels

Connect a diagnostic scanner; confirm B1713 is active and note any related codes. Record freeze-frame and test data.
Perform a careful visual inspection of the seat down switch, harness, and connector for physical damage, corrosion, or loose pins. Repair any obvious problems.
Check fuses and power supply to the seat control module. Verify battery voltage at module power pins with ignition on.
Back-probe the switch connector. Verify expected voltage or continuity change when the down switch is pressed. If no change, test the switch outside the circuit for continuity (multimeter).
If the switch shows correct operation, test continuity between the switch connector and the seat control module input pin to check for open circuit. Check for shorts to ground or battery by measuring resistance to ground and battery with connectors disconnected.
Wiggle the wiring and connectors while operating the switch to try to reproduce the fault. If intermittent faults occur, isolate and repair wiring or secure connectors.
If wiring and switch check good, inspect/scan the seat control module (or BCM) for internal faults or software updates. Consider swap or bench test of module only after verifying harness and switch.
After repairs, clear codes and perform full function test of the seat movement. Road-test and re-check for reappearance of the code.

Failed or intermittent seat down switch
Damaged wiring or connector (open circuit or short) at the switch or under the seat
Corrosion or poor mating at the connector pins
Short to ground or to battery in the switch circuit