What Does B2223 Mean?
DTC B2223 indicates the Body Control Module (BCM) has detected a malfunction in the driver's side power mirror drive circuit. This means the electrical circuit responsible for adjusting the driver's side mirror (up/down or left/right movement) is experiencing an open circuit, short circuit, excessive current draw, or complete loss of communication. The BCM monitors the mirror motor circuits and sets this code when voltage, resistance, or current fall outside acceptable parameters during mirror operation.
Common Causes
45%
Faulty driver's side mirror motor or internal motor circuit failure
30%
Damaged, corroded, or disconnected wiring harness between BCM and driver's mirror
15%
Corroded or loose connector at mirror or door harness junction
10%
Failed Body Control Module internal mirror driver circuit
Diagnostic Steps
1
Step 1: Perform visual inspection of driver's mirror assembly for physical damage, water intrusion, or broken housing. Check mirror connector at the door for corrosion, bent pins, or loose connection. Wiggle connector while observing for intermittent operation.
2
Step 2: Using a digital multimeter, backprobe the mirror connector with ignition on and measure voltage supply (typically 12V) and ground continuity. Operate mirror switch in all directions and verify voltage changes to the motor control wires (polarity should reverse for opposing directions).
3
Step 3: Disconnect mirror connector and measure resistance across mirror motor terminals. Typical resistance should be 15-50 ohms depending on manufacturer. Infinite resistance indicates open motor windings; near-zero resistance indicates shorted motor.
4
Step 4: If mirror motor tests good, inspect wiring harness from door jamb through door hinge area for pinched, chafed, or broken wires. Check continuity from BCM connector to mirror connector on all motor control circuits with harness disconnected at both ends.
5
Step 5: If all wiring and mirror motor test within specifications, suspect BCM internal driver circuit failure. Verify proper BCM ground connections and power supply circuits before condemning BCM. Clear codes, cycle mirror operation in all directions, and verify fault returns to confirm BCM replacement necessity.
Estimated Repair Cost
$150 - $650
Parts + labor, varies by vehicle and location
DTC B2223 indicates the Body Control Module (BCM) has detected a malfunction in the driver's side power mirror drive circuit. This means the electrical circuit responsible for adjusting the driver's side mirror (up/down or left/right movement) is experiencing an open circuit, short circuit, excessiv...
The most common cause of B2223 (Mirror Driver Drive Circuit Failure) is: Faulty driver's side mirror motor or internal motor circuit failure
Typical repair costs for B2223 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 adjustment functionality. While not a safety-critical failure, inability to properly adjust the driver's mirror can reduce rear visibility and should be repaired reasonably soon for optimal driving awareness.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2223 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 Electronics / Power Mirror System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
