B1706
Seat Driver Recline Rearward Switch Circuit Open
Body Chassis/Safety Seat Electronics 🟢 Low — Fix at next service
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What This Actually Means
In plain language — no jargon

The seat's rearward recline switch isn't sending a proper electrical signal to the car's computer, like a light switch that's broken and won't complete the circuit. The system detects an open or disconnected wire in the driver's seat recline mechanism.

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Symptoms You May Notice
3 known symptoms for this code
Driver seat recline button unresponsive or non-functional
Seat recline warning light or message on instrument cluster
Loss of power seat adjustment control for reclining backward
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Embedded Systems Insight
What the ECU/ECM is actually computing

The Body Control Module monitors the continuity and voltage signal from the driver seat recline switch circuit. When the button is pressed, it expects to see a specific voltage change (typically ground or 12V transition). An open circuit means no signal is detected, indicating a break in the wiring or switch connection.

Voltage & Parameter Thresholds

Parameter Normal Range Fault Condition
Switch Signal Voltage Ground (0V) to 12V transition when activated No voltage change or open circuit detected (infinite resistance)
Circuit Continuity Less than 5 ohms resistance when switch engaged Greater than 100 ohms or infinite resistance
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Diagnostic & DIY Fix Guide
Check these in order — from cheapest to most complex
1
Wire connector at seat switch
Locate the seat recline switch connector under the seat and reseat it firmly to ensure proper electrical contact.
2
Wiring harness for seat control circuit
Inspect the wiring between the seat switch and Body Control Module for visible damage, pinches, or corrosion and repair or replace as needed.
3
Driver seat recline switch assembly
If connector and wiring are intact, replace the faulty switch mechanism in the seat control panel.