OBD Code B2352: Driver Memory Power Switch Indicator Circuit Short to Battery

Q: What are the symptoms of fault code B2352?

Driver seat memory function not operating, Memory indicator light malfunction on dashboard, Inability to recall saved seat positions

Q: How do I fix OBD fault code B2352?

Inspect and reseat all connectors at the driver seat memory module for corrosion or loose pins.. Check wiring between seat switch and ECU for damaged insulation causing contact with battery voltage line.. Replace the faulty memory switch if wiring is intact but voltage remains shorted to battery.

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What This Actually Means

In plain language — no jargon

The driver memory power switch circuit is detecting too much voltage, like a short wire touching the battery instead of properly controlling the seat memory function. This prevents the seat position memory from working correctly.

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Symptoms You May Notice

3 known symptoms for this code

Driver seat memory function not operating

Memory indicator light malfunction on dashboard

Inability to recall saved seat positions

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How Your ECU Detects This

Technical sensor logic and voltage thresholds

The ECU monitors the voltage signal from the driver memory power switch circuit, expecting a controlled low-voltage output. When the circuit shorts to battery voltage (12V+), the ECU detects an abnormal high-voltage condition that exceeds safe operating thresholds, triggering the fault code.

Voltage & Parameter Thresholds

Parameter	Normal Range	Fault Condition
Switch Circuit Voltage	0.5 - 4.5V	> 10V (shorted to battery)
Circuit Resistance	1kΩ - 10kΩ	< 100Ω (short condition)

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Diagnostic & DIY Fix Guide

Check these in order — from cheapest to most complex

1

Wiring harness connector

Inspect and reseat all connectors at the driver seat memory module for corrosion or loose pins.

2

Wiring insulation repair

Check wiring between seat switch and ECU for damaged insulation causing contact with battery voltage line.

3

Driver seat memory switch assembly

Replace the faulty memory switch if wiring is intact but voltage remains shorted to battery.

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When to See a Professional Mechanic

Not all fault codes are safe to DIY

Code B2352 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 B2352

What happens after you fix the fault

Once the fault is repaired, B2352 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.