What Does B2113 Mean?
This code indicates the Body Control Module (BCM) has detected a short-to-ground condition in the heated windshield input circuit. The BCM monitors the heated windshield system and has identified that the control circuit voltage is being pulled to ground when it should be at a higher reference voltage. This prevents proper operation of the heated windshield defroster elements and may cause the system to be disabled for protection.
Common Causes
45%
Damaged or chafed wiring harness causing short to ground between BCM and heated windshield relay or grid connections
25%
Failed heated windshield relay with internal short to ground
20%
Corroded or damaged connector pins at BCM or heated windshield module causing ground path
10%
Failed heated windshield grid or element with internal short creating ground fault
Diagnostic Steps
1
Step 1: Perform visual inspection of all wiring and connectors in the heated windshield circuit, checking for damaged insulation, pinched wires, corroded terminals, or moisture intrusion at BCM connector and heated windshield relay/module connectors
2
Step 2: Disconnect the heated windshield relay and use a digital multimeter to measure resistance from the BCM control wire (input circuit) to ground; reading should be greater than 10k ohms, less than 5 ohms confirms short to ground in wiring
3
Step 3: If wiring tests good, check heated windshield relay by testing coil resistance (typically 70-120 ohms) and verify no continuity between relay terminals and case/ground; replace relay if shorted
4
Step 4: With relay disconnected, measure resistance of heated windshield grid at windshield connector; typical resistance is 0.1-2 ohms between bus bars, verify no direct short to ground (infinite resistance to chassis ground expected)
5
Step 5: Repair or replace identified faulty component (wiring, relay, connector, or windshield), clear codes, and verify proper system operation by activating heated windshield and confirming no code returns and proper current draw (typically 30-60 amps when active)
Estimated Repair Cost
$100 - $800
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) has detected a short-to-ground condition in the heated windshield input circuit. The BCM monitors the heated windshield system and has identified that the control circuit voltage is being pulled to ground when it should be at a higher reference volta...
The most common cause of B2113 (Heated Windshield Input Short to Ground) is: Damaged or chafed wiring harness causing short to ground between BCM and heated windshield relay or grid connections
Typical repair costs for B2113 range from $100 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to drive with this code as it only affects windshield heating function. However, reduced defogging capability in cold or humid conditions may impact visibility, so repair should be completed before winter weather for safety.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2113 to identify the root cause.
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Quick Info
Category
Body
System
Body Electrical System - Heated Windshield
Difficulty
Type
Generic (SAE)
Recommended Tools
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