Can I just clean throttle body?
My son's 2015 golf tdi started displaying a CEL which wouldn’t go away.
The VCDS codes say this:
23010 - Exhaust Gas Recirculation System
P240F 00 [01100000] - Response too Slow. Intermittent - Not Confirmed - Tested Since Memory Clear
5290 - Throttle Actuator Control Circuit
P2100 00 [01100000] - Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
25744 - Catalyst System; Bank 1
P0420 00 [01100000] - Efficiency Below Threshold
Intermittent - Not Confirmed - Tested Since Memory Clear
8863 - Particulate Filter
P2459 00 [11101000] - Regeneration Frequency
MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 26
Mileage: 241844 km
Date: 2025.10.10
Time: 08:25:26
Can cleaning the throttle body help? (at least act as a point to start)