What Does B2265 Mean?
DTC B2265 indicates the Body Control Module (BCM) has detected an abnormal signal from the power mirror position sensor circuit. This code is set when the BCM cannot properly read the feedback signal that indicates the current position of the power mirror adjustment mechanism. The fault may be in the sensor itself, its wiring, connectors, or the mirror motor assembly that contains the position sensor.
Common Causes
40%
Faulty mirror position sensor or potentiometer inside the mirror assembly
30%
Damaged or corroded wiring harness or connector between BCM and mirror assembly
20%
Water intrusion or corrosion inside mirror housing affecting sensor operation
10%
Failed Body Control Module (BCM) unable to process position sensor signals
Diagnostic Steps
1
Step 1: Perform visual inspection of affected mirror assembly for physical damage, water intrusion, or signs of corrosion. Check mirror operation manually and note any binding or abnormal movement.
2
Step 2: Using a multimeter, backprobe the mirror connector at the door harness and check for proper voltage supply (typically 12V) and ground. Verify reference voltage to position sensor (typically 5V) while ignition is on.
3
Step 3: Disconnect mirror connector and measure resistance across position sensor terminals while manually moving mirror through full range of motion. Resistance should change smoothly without dropouts (typical range 500-5000 ohms depending on manufacturer).
4
Step 4: Inspect wiring harness from door jamb area for pinched, cut, or chafed wires caused by door opening/closing. Check continuity of all circuits from mirror connector to BCM connector.
5
Step 5: If all circuits test normal, substitute known-good mirror assembly to confirm sensor failure. If problem persists with known-good mirror, test BCM operation or check for software updates available for BCM.
6
Step 6: After repair, clear codes, cycle mirror through full range of motion in all directions, and verify position sensor signal is stable using live data on scan tool.
Estimated Repair Cost
$150 - $650
Parts + labor, varies by vehicle and location
DTC B2265 indicates the Body Control Module (BCM) has detected an abnormal signal from the power mirror position sensor circuit. This code is set when the BCM cannot properly read the feedback signal that indicates the current position of the power mirror adjustment mechanism. The fault may be in th...
The most common cause of B2265 (Mirror Position Sensor Signal Circuit) is: Faulty mirror position sensor or potentiometer inside the mirror assembly
Typical repair costs for B2265 range from $150 to $650, 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 and the vehicle is safe to operate. Mirror adjustment functionality may be compromised, potentially affecting visibility when changing lanes, but mirrors can typically still be adjusted manually if needed.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2265 to identify the root cause.
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Quick Info
Category
Body
System
Body Control and Accessories
Difficulty
Type
Generic (SAE)
Recommended Tools
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