B1760

Seat Driver Rear Down Circuit Short To Ground

Body Chassis/Safety Seat control circuit 🟢 Low — Fix at next service ✅ Safe to Drive
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What This Actually Means

In plain language — no jargon

The driver's rear seat control circuit is detecting a short to ground, meaning the electrical signal is taking an unintended path to ground instead of completing its normal circuit. It's like a garden hose with a hole—the water escapes before reaching its destination.

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Symptoms You May Notice

3 known symptoms for this code
Driver rear seat fails to move down or moves unexpectedly
Seat control button unresponsive or malfunctioning
Warning light or message displayed on dashboard
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How Your ECU Detects This

Technical sensor logic and voltage thresholds

The ECU monitors the voltage signal from the driver rear seat down motor control circuit. When operating normally, the circuit maintains a specific voltage level. A short to ground causes the voltage to drop below the minimum threshold, triggering the fault code.

Voltage & Parameter Thresholds

ParameterNormal RangeFault Condition
Control circuit voltage 10-14V <2V (short to ground detected)
Motor resistance 5-25 ohms <1 ohm (indicates direct ground path)
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Diagnostic & DIY Fix Guide

Check these in order — from cheapest to most complex
1
Wiring harness connector
Inspect and reseat the seat motor connector; clean corrosion from terminals with electrical contact cleaner.
2
Wiring insulation/loom
Check the seat control wiring for cuts, abrasion, or damaged insulation; repair with electrical tape or heat shrink tubing.
3
Seat motor assembly
If wiring is intact, replace the faulty seat motor or control module causing the short.
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When to See a Professional Mechanic

Not all fault codes are safe to DIY

Code B1760 is a low-severity fault. Your vehicle is generally safe to drive to a workshop for diagnosis. However, do not ignore it indefinitely — low-severity codes often indicate developing problems that become expensive if neglected. Book a diagnostic appointment within 2–4 weeks. If you notice any additional symptoms (rough running, power loss, unusual smells), treat it as higher priority.

Safety note: OBD-II codes identify the system or circuit where a fault was detected — they do not always identify the exact failed component. A professional mechanic using live sensor data will diagnose the root cause more accurately than replacing parts based on the code alone.
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How to Clear Code B1760

What happens after you fix the fault

Once the fault is repaired, B1760 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.

The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.

✅ Safe to Clear When
  • Fault has been diagnosed and repaired
  • You want to confirm the repair worked
  • Code appeared after a sensor was cleaned
⚠️ Do Not Clear When
  • Preparing for an emissions/PUC test
  • Root cause is still undiagnosed
  • Check engine light is flashing
Emissions test note: Clearing codes resets OBD readiness monitors. Most vehicles need 50–100 km of mixed driving before monitors complete. Do not clear codes immediately before an emissions or PUC inspection.