B2329 — Column Reach Feedback Potentiometer Circuit Open

Is it safe to drive with B2329?

Usually safe to drive — body codes rarely affect drivability. Exceptions: exterior lighting and wipers in bad weather, and central locking faults that can leave the car unsecured.

How do I diagnose B2329 myself?

Start with a scan: confirm B2329, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the column reach feedback potentiometer, and verify the suspect component against live data before buying parts.

Will B2329 clear itself?

Sometimes B2329 clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

What does OBD2 code B2329 mean?

Column Reach Feedback Potentiometer Circuit Open (B2329): a body electrical fault affecting the body electrical system. The car is usually drivable while you plan the repair. Most often caused by blown fuse or failed relay, corroded or loose connectors, body control module (BCM) fault.

What are the symptoms of B2329?

Drivers most often notice: warning light on the dashboard, no impact on engine operation in most cases, the affected function (locks, windows, lighting, wipers) works intermittently or not at all.

When your scan tool displays B2329, the vehicle's body control module has detected that an electrical circuit responsible for the column reach feedback potentiometer is not behaving as it should. B2329 falls under the B-body category, which covers body electrical and comfort-system faults. The code specifically points to an "open circuit" condition — meaning the electrical pathway that should carry a signal between components has been interrupted somewhere along its path.

The column reach adjustment system uses a potentiometer to tell the control module where the steering column is positioned horizontally. When you slide the column in or out, the potentiometer's resistance changes, and the module uses that information to adjust other systems like memory seats, the tilt/telescope memory function, or the instrument cluster display. When B2329 sets, it means the module stopped receiving any signal at all from that potentiometer — the circuit is broken, not just sending wrong values. The module logs this condition and turns on a warning light to alert you that something in the steering column adjustment feedback system has failed.

The ECU or body control module (BCM) sets B2329 after monitoring the circuit for a specific period and confirming the open condition persists across multiple drive cycles. This prevents false alarms from temporary voltage spikes or loose connections that momentarily interrupt the signal. When the code is stored, the module also saves a freeze frame — a snapshot of engine speed, load, coolant temperature, and vehicle speed at the exact moment the fault was detected. That snapshot is valuable because it tells you exactly what conditions the vehicle was under when the problem appeared, which helps narrow down whether the failure happened during a specific maneuver, temperature condition, or electrical load.

Symptoms of B2329

• Check engine or body warning light illuminated on the dashboard
• Steering column reach adjustment may stop responding or move intermittently
• Memory seat presets tied to column position may not work correctly
• The affected system rarely impacts engine performance, transmission operation, or braking
• Intermittent or complete loss of function in the column reach adjustment feature
• Possible inconsistent behavior from linked systems like automatic tilt adjustment or exit-assist memory
• In some vehicles, the instrument cluster may display a service message related to steering or memory systems

Common causes of B2329

• Broken or severed wire within the column reach feedback potentiometer wiring harness
• Disconnected, backed-out, or corroded electrical connector at the steering column or BCM
• Internally failed column reach feedback potentiometer (the component itself is open)
• Blown fuse or failed relay that provides power to the circuit
• Wiring damage in high-flex areas such as door jambs or steering column boots where wires bend repeatedly
• Loose or oxidized connector pins creating a poor electrical connection
• Body control module itself malfunctioning and unable to read the potentiometer signal
• Faulty column reach switch or adjustment motor not completing the circuit properly

How to diagnose B2329

Start by connecting a quality OBD2 scanner and confirming B2329 is present in the stored codes. Before clearing anything, record the freeze frame data associated with B2329 — note the RPM, engine load, coolant temperature, and vehicle speed recorded when the fault first occurred.

Check for any related diagnostic trouble codes that may have set alongside B2329. In many cases, an open circuit in one component can pull down signals in adjacent circuits, and addressing the root code first often clears the secondary ones. Research whether any manufacturer technical service bulletins apply to your specific make, model, and model year — some vehicles have known software updates or harness modifications that address recurring B0xxx code issues.

Perform a thorough visual inspection of the wiring harness and connectors feeding the column reach potentiometer. Look for worn insulation, chafing from contact with metal brackets, corrosion buildup on the connector pins, or obvious breaks in the wire. Pay special attention to areas where the harness bends — the steering column, door jambs, and any flex points are the most likely places for broken strands to cause intermittent opens.

Use a multimeter to perform continuity testing on the circuit from the potentiometer all the way back to the BCM. With the connector unplugged, check resistance end-to-end on each wire in the harness. An open circuit will show infinite resistance or OL on your meter. While monitoring the multimeter, gently wiggle and flex the harness — if the reading jumps around or fluctuates, you have found an intermittent open that will eventually cause B2329 to return.

Operate the column reach switch while observing live data on your scanner. Watch the potentiometer's voltage or resistance values as the column moves. If the values stay flat at 0V or 5V regardless of switch position, the potentiometer is likely failed internally. After confirming the fault, clear the code, complete a full drive cycle that recreates the conditions from the freeze frame, and verify that B2329 does not set again.

Repair options for B2329

The appropriate repair depends entirely on what your diagnosis uncovers. Start with the least expensive possibilities before investing in major component replacement.

• Repair damaged wiring harness or corroded connectors: $80–$250
• Replace faulty column reach feedback potentiometer, switch, or adjustment motor: $120–$450
• Body control module repair or replacement if the module itself has failed: $300–$900

Labor rates at independent shops typically run $75–$125 per hour, and many steering column electrical repairs take one to three hours depending on access to the harness and connectors.

Cost summary for B2329

The total bill for fixing B2329 varies widely depending on which component failed. At independent shop rates (parts and labor, USD):

Minor wiring harness repair or connector cleaning runs $80–$250 and resolves the issue in most straightforward cases. Replacing a failed potentiometer, switch, or adjustment motor typically costs $120–$450 depending on the part price for your vehicle. If the body control module is at fault, BCM replacement or repair ranges from $300–$900. In most cases, an accurate diagnosis before purchasing parts will keep your total cost well below the worst-case scenario. Spending $30–$60 on a multimeter and learning to check continuity yourself can often identify the problem without any shop fees at all.

Can you drive with B2329?

B2329 is classified as a short-term safety concern — the vehicle remains drivable in nearly all cases because the fault involves a comfort and convenience system rather than engine management or critical safety controls. Your engine will start, the transmission will shift normally, and your brakes and steering will function as expected. The column reach adjustment itself may stop working, and any memory seat presets linked to that potentiometer may not function properly. The main practical risk is losing powered steering column adjustment while already on the road, which is an inconvenience rather than a safety failure. Use caution with any linked systems like automatic entry lighting or memory-linked mirrors, and have the fault diagnosed before any long trip if the column adjustment or memory functions are important to you.