What Does B1441 Mean?
This code indicates the Body Control Module (BCM) has detected an abnormal short-to-ground condition in the wiper mode select switch circuit. The switch, which allows the driver to select different wiper speeds and modes (intermittent, low, high), is sending a voltage signal lower than expected, suggesting the circuit is grounded when it shouldn't be. This prevents proper wiper operation and mode selection.
Common Causes
40%
Damaged or chafed wiring harness between wiper switch and BCM creating a short to ground
30%
Failed wiper mode select switch with internal short circuit to ground
20%
Corroded or damaged connector terminals at wiper switch or BCM allowing moisture intrusion
10%
Failed Body Control Module with internal circuit fault on wiper mode input
Diagnostic Steps
1
Step 1: Perform visual inspection of wiper switch connector and BCM connector for corrosion, bent pins, water intrusion, or damage. Disconnect battery negative terminal before disconnecting any connectors.
2
Step 2: With connectors disconnected, use a digital multimeter to check resistance between the wiper mode select signal wire at the BCM harness side and chassis ground. Reading should be greater than 10k ohms; low resistance indicates a short to ground in the harness.
3
Step 3: Inspect the entire wiring harness from wiper switch to BCM for visible damage, chafing against metal edges, pinch points at doors/hinges, or areas where wires may contact ground. Pay special attention to steering column area and door jamb routing.
4
Step 4: Disconnect wiper switch and measure resistance between switch signal terminals and ground terminal with switch in various positions. Compare readings to manufacturer specifications; abnormally low resistance indicates failed switch.
5
Step 5: If harness and switch test normal, reconnect all components except BCM connector and measure voltage/resistance at BCM side wiper mode input pin. Verify proper signal behavior matches switch positions; if short still exists with switch disconnected, BCM may be faulty.
6
Step 6: Clear codes, reconnect all components, and perform operational test of wiper system through all modes. Verify code does not return and proper wiper function is restored.
Estimated Repair Cost
$75 - $450
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) has detected an abnormal short-to-ground condition in the wiper mode select switch circuit. The switch, which allows the driver to select different wiper speeds and modes (intermittent, low, high), is sending a voltage signal lower than expected, sug...
The most common cause of B1441 (Wiper Mode Select Switch Circuit Short To Ground) is: Damaged or chafed wiring harness between wiper switch and BCM creating a short to ground
Typical repair costs for B1441 range from $75 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Generally safe to drive as this affects wiper mode selection but may not completely disable wipers. However, if wipers fail to operate properly during rain or inclement weather, visibility is compromised and creates a significant safety hazard requiring immediate repair before driving in wet conditions.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B1441 to identify the root cause.
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Quick Info
Category
Body
System
Wiper/Washer System
Difficulty
Type
Manufacturer
Recommended Tools
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