B0197

Front Blower Motor Speed Circuit Open

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Heater fan does not turn on
The fan only runs at maximum speed
No fan speed adjustment

Causes

Open or short circuit in wiring harness
Fan resistor failure
Fan relay problems
Fan motor failure
Malfunction of the climate control unit

How to Fix

Check the fan circuit fuse
Inspect the wiring harness for damage
Check the resistance of the fan resistor
Check fan relay operation
Test the fan motor
Check signals from the control unit

Related codes

B0198 B0187 B0188