What Does U0213 Mean?
Communication has been lost between the main network bus and the mirror control module. This module manages power mirror adjustments, heating, auto-dimming, and memory functions for exterior mirrors.
Common Causes
40%
Damaged or corroded mirror control module connector or wiring in door jamb area
25%
Failed mirror control module internal electronics or water intrusion damage
20%
CAN bus communication fault or short circuit affecting body control network
10%
Blown fuse or power supply issue to mirror control module
5%
Module software fault requiring initialization or configuration
Diagnostic Steps
1
Step 1: Check all fuses related to mirror system and body control module; verify battery voltage at mirror module
2
Step 2: Inspect mirror control module connector (often in door or behind mirror housing) for water damage, corrosion, or loose terminals
3
Step 3: Wiggle test door harness while monitoring communication status, especially flexing the rubber boot area between door and body
4
Step 4: Attempt direct communication with mirror module using scan tool to determine if module responds at all
5
Step 5: Check CAN bus signal integrity at mirror module connector; if signals present but no communication, replace mirror control module
Estimated Repair Cost
$120 - $600
Parts + labor, varies by vehicle and location
Communication has been lost between the main network bus and the mirror control module. This module manages power mirror adjustments, heating, auto-dimming, and memory functions for exterior mirrors.
The most common cause of U0213 (Lost Communication With Mirror Control Module) is: Damaged or corroded mirror control module connector or wiring in door jamb area
Typical repair costs for U0213 range from $120 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Minimal safety impact as manual mirror adjustment is usually possible. May affect blind spot monitoring or puddle lamp functionality if integrated with mirror module.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0213 to identify the root cause.
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Quick Info
Category
Network
System
Body Control/Mirror System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
