What Does B2329 Mean?
This code indicates the Body Control Module (BCM) has detected an open circuit in the steering column telescoping reach adjustment feedback potentiometer. The potentiometer provides position feedback to the BCM for power-adjustable steering column systems. An open circuit means there is a complete break in electrical continuity, preventing the BCM from receiving position data from the telescoping adjustment sensor.
Common Causes
40%
Broken or disconnected wiring harness in the steering column area due to repeated column movement and flexing
30%
Failed reach adjustment potentiometer with internal open circuit or worn resistive track
20%
Corroded or damaged electrical connector at the potentiometer or BCM junction
10%
Damaged BCM with internal circuit failure on the potentiometer input channel
Diagnostic Steps
1
Step 1: Perform visual inspection of the steering column reach adjustment mechanism and wiring. Look for damaged wires, loose connectors, or signs of physical damage near the telescoping mechanism where wires flex during adjustment.
2
Step 2: Disconnect the reach potentiometer connector and measure resistance across the potentiometer terminals while manually moving the column through its full range of travel. Expected reading should be smooth voltage/resistance change (typically 500-5000 ohms range depending on manufacturer). Infinite resistance indicates open potentiometer.
3
Step 3: With potentiometer disconnected, check for continuity in the wiring harness from the potentiometer connector to the BCM connector using a multimeter. Test all three wires (ground, signal, 5V reference). Any wire showing infinite resistance indicates an open circuit in the harness.
4
Step 4: Check voltage supply at the potentiometer connector with ignition on. Verify 5V reference voltage and good ground (less than 0.1V). Lack of voltage indicates upstream BCM or power supply issue.
5
Step 5: If wiring and power supply are confirmed good, replace the reach feedback potentiometer and verify proper operation by monitoring live data during column adjustment to confirm smooth signal change.
6
Step 6: Clear codes, cycle ignition, and perform functional test of the power reach adjustment through full range to verify repair. Monitor for code return and confirm proper position feedback in scan tool data.
Estimated Repair Cost
$150 - $650
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) has detected an open circuit in the steering column telescoping reach adjustment feedback potentiometer. The potentiometer provides position feedback to the BCM for power-adjustable steering column systems. An open circuit means there is a complete b...
The most common cause of B2329 (Column Reach Feedback Potentiometer Circuit Open) is: Broken or disconnected wiring harness in the steering column area due to repeated column movement and flexing
Typical repair costs for B2329 range from $150 to $650, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to continue driving as this only affects power telescoping adjustment convenience feature. Manual steering column adjustment may still be possible. Non-urgent repair, but loss of memory seating functions and power column adjustment will occur.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2329 to identify the root cause.
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Quick Info
Category
Body
System
Steering Column Adjustment System
Difficulty
Type
Generic (SAE)
Recommended Tools
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