Here we go again..........Heater Woes

[Albert_Swafega]

Well, it's that time of year, and you expect the heater to work?

Nope, took a ride today, and the only heat was off the heated seats.

Took a scan, and found:

Address 08: Auto HVAC Labels: 4H0-820-043.clb
Control Module Part Number: 4H0 820 043 D HW: 4H0 820 043 D
Component and/or Version: Klima 3 Zonen H14 0061
Software Coding: 3621002800
Work Shop Code: WSC 02313 785 00200
ASAM Dataset: EV_AirCondiFront 001050 (AU64)
ROD: EV_AirCondiFront_AU64.rod
VCID: 21503B5361C9138A302EBB9-8075
1 Fault Found:

0378 - Coolant Circulation Pump
B10D0 04 [009] - Internal System Fault
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 3
Fault Frequency: 1
Reset counter: 217
Mileage: 175128 km
Date: 2016.11.11
Time: 21:03:57

Has anyone seen this before? is there a circulation pump just for the blowers? Where is it? Are they easy to change?

Cheers