What Does B2353 Mean?
This code indicates the Body Control Module (BCM) has detected a short to ground in the power driver circuit for the driver's side mirror motor. The circuit that controls mirror adjustment movement is experiencing abnormally low resistance, causing excessive current flow to ground instead of through the mirror motor. This fault prevents proper mirror adjustment and protects the module from damage by shutting down the circuit.
Common Causes
45%
Damaged or chafed wiring harness in the door jamb area where wires flex during door opening/closing, causing wire insulation to wear through and short to vehicle ground
30%
Failed mirror motor assembly with internal short to ground in the motor windings or motor housing
15%
Corroded or moisture-damaged mirror connector causing short circuit path to ground through corrosion buildup
10%
Failed body control module with damaged output driver transistor creating false short to ground detection
Diagnostic Steps
1
Step 1: Perform visual inspection of driver door jamb wiring harness for pinched, chafed, or damaged wires. Flex the harness while inspecting for breaks in insulation where wires contact metal door frame or hinge area
2
Step 2: Disconnect the driver side mirror connector at the mirror and measure resistance between each mirror motor circuit pin and vehicle ground using a digital multimeter. Reading should be greater than 10,000 ohms; less than 10 ohms indicates short to ground in mirror assembly
3
Step 3: With mirror disconnected, backprobe the BCM side of the mirror harness connector and measure resistance to ground on the power driver circuit. Reading below 10 ohms confirms harness short; reading above 10,000 ohms clears the harness and points to mirror or BCM
4
Step 4: If harness and mirror test normal, substitute a known-good mirror assembly temporarily to verify if BCM output driver is functional. If fault persists with good mirror and harness, BCM replacement required
5
Step 5: Repair identified fault (splice damaged wire, replace mirror, or replace BCM), clear codes, and cycle mirror through full range of motion in all directions while monitoring live data for proper current draw (typically 2-4 amps during movement)
Estimated Repair Cost
$150 - $650
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) has detected a short to ground in the power driver circuit for the driver's side mirror motor. The circuit that controls mirror adjustment movement is experiencing abnormally low resistance, causing excessive current flow to ground instead of through...
The most common cause of B2353 (Driver Mirror Power Driver Circuit Short Ground) is: Damaged or chafed wiring harness in the door jamb area where wires flex during door opening/closing, causing wire insulation to wear through and short to vehicle ground
Typical repair costs for B2353 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 convenience features. Does not impact vehicle safety systems, though properly adjusted mirrors are important for visibility. Repair at convenience within normal service intervals.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2353 to identify the root cause.
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Quick Info
Category
Body
System
Body Control System - Mirror Adjustment
Difficulty
Type
Generic (SAE)
Recommended Tools
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