B1701
Seat Driver Recline Forward Switch Circuit Failure
Body Chassis/Safety Seat Control System 🟢 Low — Fix at next service
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What This Actually Means
In plain language — no jargon

The driver's seat recline forward button isn't communicating properly with the vehicle's computer, like a broken remote control that won't send signals to the TV. The circuit connecting this switch has an electrical fault that prevents normal operation.

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Symptoms You May Notice
3 known symptoms for this code
Driver seat recline forward button does not function
Seat control module warning light illuminates on dashboard
Intermittent seat adjustment followed by complete failure
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Embedded Systems Insight
What the ECU/ECM is actually computing

The ECU monitors the voltage signal from the recline forward switch circuit when the button is pressed. It expects a clean digital transition from high to low voltage within specific timing parameters. If the signal is missing, stuck, or erratic, the ECU logs a circuit failure fault.

Voltage & Parameter Thresholds

Parameter Normal Range Fault Condition
Switch Signal Voltage 5V idle, 0V when activated No voltage change or stuck voltage
Circuit Continuity Less than 5 ohms resistance Open circuit or greater than 10 ohms
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Diagnostic & DIY Fix Guide
Check these in order — from cheapest to most complex
1
Seat recline switch connector
Disconnect and reconnect the switch harness to clean oxidation from the contacts.
2
Recline forward switch assembly
Remove the old switch from the seat control panel and install a replacement unit.
3
Seat control module wiring harness
Inspect and repair any damaged wires or frayed connections in the circuit path.