What Does B2286 Mean?
B2286 indicates the Body Control Module (BCM) has detected an abnormal voltage or signal from the power mirror position sensor circuit. This code typically sets when the feedback sensor that monitors mirror glass position reports values outside the expected range, or when there is an open or short circuit in the position sensor wiring. The system uses this sensor to determine mirror position for memory settings and auto-dimming features.
Common Causes
45%
Failed or worn mirror position sensor/potentiometer inside the mirror assembly
30%
Damaged or corroded wiring harness between door jamb and mirror assembly
15%
Corroded or loose connector at mirror assembly or door module
10%
Failed door control module or BCM internal circuit fault
Diagnostic Steps
1
Step 1: Perform visual inspection of mirror assembly for physical damage, water intrusion, or loose mounting. Check door jamb area for pinched or damaged wiring harness between door and body.
2
Step 2: Using a digital multimeter, backprobe the mirror position sensor circuit at the mirror connector. With ignition on, command mirror movement through scan tool and verify sensor voltage changes smoothly between 0.5V and 4.5V through full range of motion. Erratic readings or no change indicates sensor failure.
3
Step 3: Check continuity and resistance of all circuits between mirror connector and door module/BCM connector with ignition off. Verify ground circuit has less than 0.5 ohms resistance and signal wires have no shorts to ground or power (should read infinite resistance).
4
Step 4: If wiring tests pass, substitute a known-good mirror assembly or test the suspect mirror on another vehicle to confirm internal sensor failure. If mirror tests good, diagnose door control module or BCM for internal faults.
5
Step 5: After repair, clear codes, cycle ignition, and perform mirror calibration procedure if available through scan tool. Test all memory positions and verify smooth operation through full range without code return.
Estimated Repair Cost
$150 - $650
Parts + labor, varies by vehicle and location
B2286 indicates the Body Control Module (BCM) has detected an abnormal voltage or signal from the power mirror position sensor circuit. This code typically sets when the feedback sensor that monitors mirror glass position reports values outside the expected range, or when there is an open or short c...
The most common cause of B2286 (Mirror Position Sensor Circuit) is: Failed or worn mirror position sensor/potentiometer inside the mirror assembly
Typical repair costs for B2286 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 mirror memory position functionality and does not impact core vehicle operation. Mirrors can typically still be adjusted manually, though memory and auto-dimming features may not function properly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2286 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Body
System
Body Control System - Power Mirror Assembly
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
