P0172

VAG 1551 Scan Tool Printout:

DTC P0172/16556

Notes:
^ B1 = Bank 1 (right side).

^ The Malfunction Indicator Lamp (MIL) is only switched on with DTC P0172/16556 after two drives, one after another with a preceding cold start and this recurring malfunction.

^ If DTC P0172/16556 is set, HO2S control has exceeded the learned value for "lean;" however the HO2S still recognizes a "mixture too rich" condition.