What Does B2262 Mean?
This diagnostic trouble code indicates the Body Control Module (BCM) has detected an abnormal signal from the power mirror position sensor circuit. The position sensor provides feedback to the BCM about the mirror glass location for memory or auto-dimming functions. The BCM has identified either an open circuit, short circuit, or out-of-range voltage signal from one or both mirror position sensors.
Common Causes
45%
Faulty mirror position sensor or internal potentiometer failure within the mirror assembly
30%
Damaged or corroded wiring harness between BCM and mirror assembly, including connector terminals
15%
Water intrusion or corrosion inside mirror housing causing sensor circuit damage
10%
Failed Body Control Module unable to properly interpret sensor signals
Diagnostic Steps
1
Step 1: Perform visual inspection of both side mirror assemblies for physical damage, water intrusion, or corrosion. Check door jamb wiring harness for damage where it flexes between door and body.
2
Step 2: Using a digital multimeter, backprobe the mirror position sensor signal wires at the mirror connector with ignition on. Verify reference voltage (typically 5V) is present and signal voltage changes smoothly (typically 0.5-4.5V range) when manually moving mirror through full range of motion.
3
Step 3: Check mirror ground circuit continuity to chassis ground and power supply circuit voltage. Inspect connector terminals for corrosion, bent pins, or water damage. Wiggle harness while monitoring voltage to identify intermittent opens or shorts.
4
Step 4: If wiring and voltage are correct but sensor readings are erratic or fixed, replace the affected mirror assembly. If all circuits test properly but code persists, suspect BCM fault and verify BCM software is updated to latest calibration.
5
Step 5: Clear codes and perform mirror position learning procedure per manufacturer specifications. Cycle mirror through full adjustment range multiple times and verify proper operation and no code return.
Estimated Repair Cost
$150 - $650
Parts + labor, varies by vehicle and location
This diagnostic trouble code indicates the Body Control Module (BCM) has detected an abnormal signal from the power mirror position sensor circuit. The position sensor provides feedback to the BCM about the mirror glass location for memory or auto-dimming functions. The BCM has identified either an ...
The most common cause of B2262 (Mirror Position Sensor Signal Circuit) is: Faulty mirror position sensor or internal potentiometer failure within the mirror assembly
Typical repair costs for B2262 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 does not affect vehicle operation or safety systems. Mirror adjustment functionality may be limited or memory positions may not work properly, but manual mirror adjustment typically remains functional.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2262 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
OBD2 Scanner
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