B048D

Auxiliary Heater Temperature Command Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced heater efficiency
Inability to regulate cabin temperature
Hot air is not supplied

Causes

Break in the wiring harness
Short circuit in control circuit
Temperature sensor malfunction
Problems with the heater control unit

How to Fix

Check the integrity of the wiring harness
Diagnose temperature sensor
Check the heater control unit
Replace damaged components

Related codes

B048C B048E B1432