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Column Reach Feedback Potentiometer Circuit Failure

Jump to the fix

Severity

High

Can I keep driving?

Avoid extended driving; visit a service soon.

First step

Read the column and body module codes and check whether the tilt axis reports a fault as well.

  • BBody
  • 2Manufacturer-specific
  • 3Body
  • 28Sequence number

What does it mean?

B2328 is a Body (airbags, seat belts, body electronics) fault code. It indicates: Washer Fluid Level Sensor Input Circuit High .

Symptoms

  • The column will not extend or retract on memory recall, or stops in a different place each time.
  • Easy entry and exit movement of the column no longer works.
  • The column moves in steps or stalls at one point of its travel.
  • Storing a new column memory position is rejected.
  • Manual column adjustment may still work, which makes the fault look random.

Likely causes

  • Worn resistive track in the reach position potentiometer, producing noise or dead spots as the column telescopes.
  • Chafed or partly broken wiring in the column loom, which flexes every time the column moves or is adjusted.
  • Corroded or loose terminals in the column module connector, often after a drink was spilled into the column area.
  • Column reach travel limits never learned, or lost after a battery disconnection or module replacement.
  • Binding telescope mechanism or damaged drive gears so the column never reaches the expected feedback value.
  • Missing five volt reference or poor sensor ground from the column control module.
  • Column module internal fault.

How to fix it

  1. Read the column and body module codes and check whether the tilt axis reports a fault as well.
  2. Monitor the reach position value in live data while running the column slowly through its full travel with the switch.
  3. Look for noise, jumps or a value that freezes, which separates a worn potentiometer from a wiring fault.
  4. Measure the five volt reference, signal and ground at the column module connector and check for voltage drop while the motor runs.
  5. Flex the column loom during the sweep, since the wiring is stressed every time the column is adjusted or the tilt is used.
  6. Repair damaged wiring and corroded terminals, then check the telescope mechanism moves freely without binding.
  7. Replace the potentiometer or column drive assembly only when it is proven faulty, then carry out the column memory relearn procedure.

Codes From the Same System

All Fault Codes

Related Similar Codes

This information follows the generic OBD-II definition and does not replace a vehicle-specific diagnosis. The severity rating is rule-based; an authorised diagnostic reading is required for a definitive answer.