Несколько ошибок по климату

Получил такие ошибки (хотя и обогрев и охлаждение работают вроде нормально):

Address 08: Auto HVAC Labels: None
Part No SW: 4L0 910 043 B HW: 4L0 820 043 L
Component: KLIMABETAETIGUNGH07 0040
Revision: 00---013 Serial number: 00000000170923
Coding: 0262168
Shop #: WSC 31414 790 00001
VCID: 234F9E289CCC

1 Fault Found:
00819 - High Pressure Sensor (G65)
009 - Open or Short to Ground - Intermittent
Freeze Frame:
Fault Status: 00101001
Fault Priority: 2
Fault Frequency: 3
Reset counter: 2
Mileage: 161094 km
Time Indication: 0
Date: 2013.12.11
Time: 12:42:21
Freeze Frame:
Temperature: 86.0°C
Temperature: 20.0°C
Load: 0.0 %
Temperature: -55.0°C
RPM: 2040 /min
Absolute Pres.: 1.6 bar
Current: 0.005 A
Temperature: -4.0°C
-------------------------
Address 18: Aux. Heat Labels: None
Part No SW: 4L0 910 105 HW: 4L0 815 071 E
Component: Heizgeraet H08 0090
Revision: 0000000D Serial number: 00000009014264
Coding: 0000001
Shop #: WSC 31414 790 00001
VCID: E0C551244D5A

1 Fault Found:
01414 - Combustion-Air Blower (V6)
007 - Short to Ground – Intermittent

-------------------------

Address 28: HVAC, Rear Labels: None
Part No SW: 4L0 910 158 HW: 4L0 919 158 D
Component: KLIMABETAETIGUNGH05 0060
Revision: 00---009 Serial number: 00000000171056
Coding: 0000006
Shop #: WSC 31414 790 00001
VCID: E8D54904A56A

1 Fault Found:
01320 - Control Module for Climatronic (J255)
013 - Check DTC Memory
Freeze Frame:
Fault Status: 01101101
Fault Priority: 2
Fault Frequency: 1
Reset counter: 211
Mileage: 161094 km
Time Indication: 0
Date: 2013.12.11
Time: 12:42:26
Freeze Frame:
ON
------------------------

С чего начать проверку и куда копать ??