Heated Seat Circuit Driver Malfunction
What does B1115 mean?
The B1115 code means the vehicle's onboard diagnostic system has detected: Heated Seat Circuit Driver Malfunction. This is a low severity code.
Common Symptoms
- Driver heated seat does not warm up
- Heated seat turns off by itself
- Heated seat overheats or gets too hot
- Heated seat switch light does not illuminate
- Burning smell from driver seat area
Probable Causes (Ranked by Likelihood)
- Failed heated seat element in cushion or backrest Very High
- Faulty heated seat switch or control module High
- Damaged wiring under driver seat Moderate
- Blown heated seat fuse Low
Step-by-Step Diagnostic Procedure
-
Check heated seat fuse
-
Test heated seat switch operation and indicator
-
Measure resistance of heating element through seat connector
-
Check voltage at seat heater connector when activated
-
Inspect wiring under driver seat for damage
Frequently Asked Questions
Can a heated seat be a fire risk?
In rare cases, a short circuit in the heating element or wiring can cause overheating. If you smell burning from the seat, turn off the heated seat immediately and have it inspected.
Why does my heated seat turn off by itself?
Many heated seats have a built-in timer or thermal protection that turns them off after a set time or if the element gets too hot. If it turns off immediately, there may be a short or open circuit.
Can I use a heated seat cover as a workaround?
Yes. Aftermarket heated seat covers that plug into the 12V outlet are an inexpensive alternative while waiting for the factory system to be repaired.