What Does B2264 Mean?
B2264 indicates the Body Control Module (BCM) has detected an abnormal signal from the power mirror position sensor circuit. This code is set when the feedback signal from the mirror's position sensor is out of range, erratic, or missing entirely. The BCM uses position sensors in power-adjustable mirrors to track mirror glass location and ensure proper positioning and memory recall functionality.
Common Causes
40%
Faulty mirror position sensor or potentiometer internal to the mirror assembly
30%
Damaged or corroded wiring harness or connectors between BCM and mirror assembly
20%
Water intrusion or corrosion inside the mirror housing affecting sensor operation
10%
Failed Body Control Module unable to properly read position sensor signals
Diagnostic Steps
1
Step 1: Perform visual inspection of the affected mirror assembly for physical damage, moisture intrusion, or mirror adjustment mechanism binding. Operate mirror in all directions and listen for abnormal sounds indicating mechanical failure.
2
Step 2: Disconnect mirror connector and inspect for corrosion, pushed-back pins, or water damage. Check connector pin tension and clean contacts if necessary.
3
Step 3: Using a digital multimeter, backprobe the mirror position sensor signal wire at the mirror connector while slowly adjusting the mirror. Verify voltage changes smoothly (typically 0.5-4.5V range) as mirror moves through full range of motion in both axes.
4
Step 4: Check continuity and resistance on all mirror circuit wires from mirror connector to BCM connector per manufacturer specifications. Look for opens, shorts to ground, or shorts to power (typically 1-10K ohm range for position sensors).
5
Step 5: If wiring and connectors test good, substitute mirror assembly with known-good unit or compare resistance values of position sensor with opposite mirror to identify failed sensor.
6
Step 6: Clear codes and verify repair by cycling mirror through memory positions (if equipped) and confirming smooth operation with no code return.
Estimated Repair Cost
$150 - $600
Parts + labor, varies by vehicle and location
B2264 indicates the Body Control Module (BCM) has detected an abnormal signal from the power mirror position sensor circuit. This code is set when the feedback signal from the mirror's position sensor is out of range, erratic, or missing entirely. The BCM uses position sensors in power-adjustable mi...
The most common cause of B2264 (Mirror Position Sensor Signal Circuit) is: Faulty mirror position sensor or potentiometer internal to the mirror assembly
Typical repair costs for B2264 range from $150 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
This code does not affect vehicle safety or driveability. The vehicle is safe to drive, though power mirror adjustment and memory features may not function properly, potentially affecting visibility during mirror adjustments.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2264 to identify the root cause.
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Quick Info
Category
Body
System
Body Control System (Power Mirror)
Difficulty
Type
Generic (SAE)
Recommended Tools
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