B0193

Front Blower Motor Speed Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–167 (est.)

Symptoms

Heater/Air Conditioner Fan Doesn't Work
The fan only runs at one speed
Fan interruptions
Burnt smell from vents

Causes

Open or short circuit in wiring harness
Fan relay fault
Blown fuse
Problems with the control unit
Fan motor malfunction

How to Fix

Check fuses associated with the fan
Inspect the wiring harness for damage
Check fan relay operation
Test the fan motor
Check signals from the control unit

Related codes

B0191 B0192 B0194