18538/P2106
From Ross-Tech Wiki
18538/P2106 - Throttle Valve Actuator Module (J338): Power Limited due to Malfunction
Possible Symptoms
- MIL on
- Engine performance
Possible Causes
- Throttle Body issue
- Wiring Harness issue
- ECM issue
Possible Solutions
- Follow test plan for Throttle Body testing, see Factory Repair Manual
Special Notes
- When found on the Audi 3.2L FSI engine, there may be a firmware update:
- TSB 01-05-05
- TSB 01-05-06