Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
B13AB:12 Air mix actuator (potentiometer) circuit short to power supply
B13AB:13 Air mix actuator (potentiometer) circuit open
The cost to diagnose the B13AB code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
The Climate Control Unit monitors the Air Mix Actuator Motor. The Climate Control Unit sets the OBDII code when the Air Mix Actuator Motor is not to factory specifications.
Need more information on how to fix the B13AB code? Get Access to Factory Service Manuals
Get the B13AB code diagnosed by a professional: Find a repair shop in your area