What Does B2322 Mean?
This code indicates the Body Control Module (BCM) detected a short to battery voltage in the driver's side mirror horizontal adjustment feedback potentiometer circuit. The potentiometer provides position feedback to the BCM for power mirror adjustment, and the circuit voltage is reading higher than the expected reference range, indicating an electrical short to positive voltage. This prevents the BCM from accurately determining or controlling the horizontal mirror position.
Common Causes
45%
Damaged or chafed wiring in the driver's door harness causing a short to power wire
30%
Failed mirror position sensor/potentiometer with internal short to power circuit
15%
Corroded or moisture-damaged mirror connector pins creating intermittent short
10%
Faulty Body Control Module with internal circuit failure on mirror control circuit
Diagnostic Steps
1
Step 1: Perform visual inspection of driver door wiring harness, especially at hinge area and mirror base, checking for chafed, pinched, or damaged insulation that could contact power wires. Flex the harness while monitoring for intermittent faults.
2
Step 2: Disconnect the driver side mirror connector and inspect for corrosion, moisture, bent pins, or signs of overheating. Measure resistance of the horizontal feedback potentiometer circuit (typically 1-10k ohms across sweep) with mirror disconnected.
3
Step 3: With mirror disconnected, use a multimeter to measure voltage on the BCM side of the horizontal feedback signal wire to ground with ignition on. Should read low reference voltage (typically 0.5-1.5V). If battery voltage is present, trace wiring for short to power between BCM and connector.
4
Step 4: If wiring tests normal, reconnect mirror and backprobe the feedback signal wire while slowly adjusting mirror horizontally. Voltage should sweep smoothly between reference voltage ranges. Erratic readings or constant battery voltage indicates failed mirror motor/sensor assembly.
5
Step 5: Clear codes, operate mirror through full range of motion, and verify code does not return. If code returns immediately with known good wiring and mirror, suspect BCM internal circuit fault requiring module replacement.
Estimated Repair Cost
$120 - $650
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) detected a short to battery voltage in the driver's side mirror horizontal adjustment feedback potentiometer circuit. The potentiometer provides position feedback to the BCM for power mirror adjustment, and the circuit voltage is reading higher than ...
The most common cause of B2322 (Mirror Driver Horizontal Feedback Potentiometer Circuit Short to Battery) is: Damaged or chafed wiring in the driver's door harness causing a short to power wire
Typical repair costs for B2322 range from $120 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 mirror adjustment functionality and does not impact vehicle operation or safety systems. Repair at convenience, though manual mirror adjustment may be compromised affecting blind spot visibility.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2322 to identify the root cause.
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Quick Info
Category
Body
System
Power Mirror System (Body Electrical)
Difficulty
Type
Generic (SAE)
Recommended Tools
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