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DTC P1565/17973: IDLE SPEED CONTROL/THROTTLE POSITION FAILURE Audi A4 B5 facelift

Note. Lower specification not attained during adaptation. May be caused by incorrectly adjusted throttle cable or dirty throttle body.

Clean throttle body as necessary. Check throttle cable adjustment. After repairs. Erase DTC memory. See CLEARING CODES in SELF-DIAGNOSTICS - INTRODUCTION article.