B2329

Column Reach Feedback Potentiometer Circuit Open

Body Chassis/Safety Steering Controls 🟢 Low — Fix at next service ✅ Safe to Drive
💬

What This Actually Means

In plain language — no jargon

The steering column reach (tilt) adjustment motor has lost electrical connection to its position sensor, like a broken wire cutting off communication between the sensor and computer. The car can't tell where the steering wheel is positioned, so it can't automatically adjust it.

⚡

Symptoms You May Notice

3 known symptoms for this code
Steering column reach adjustment not working or stuck
Check Engine Light illuminated on dashboard
Memory seat function may not restore column position
🔬

How Your ECU Detects This

Technical sensor logic and voltage thresholds

The ECU monitors voltage feedback from the reach potentiometer to detect the steering column's current position. An open circuit means zero or erratic voltage is received, preventing the ECU from verifying proper column position or commanding adjustments.

Voltage & Parameter Thresholds

ParameterNormal RangeFault Condition
Potentiometer Voltage 0.5V - 4.5V variable 0V or >5V (open circuit)
Circuit Resistance 1kΩ - 100kΩ variable Infinite (open/disconnected)
🔧

Diagnostic & DIY Fix Guide

Check these in order — from cheapest to most complex
1
Wiring harness connectors
Inspect and reseat all connectors at the reach motor and potentiometer for corrosion or loose pins.
2
Wiring harness
Check for damaged, pinched, or cut wires in the steering column wiring bundle and repair with appropriate splicing or replacement.
3
Reach potentiometer sensor
Replace the potentiometer if continuity testing shows an internal open circuit.
⚠️

When to See a Professional Mechanic

Not all fault codes are safe to DIY

Code B2329 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.
🔄

How to Clear Code B2329

What happens after you fix the fault

Once the fault is repaired, B2329 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.