DTC 16556
Scan Tool Printer Display, Code 16556:
NOTE:
If DTC "16556" is stored, oxygen sensor control has dropped below the learning value limit in the "lean" direction but the oxygen sensor continues to recognize "System Too Rich".
NOTE:
If DTC "16556" is stored, oxygen sensor control has dropped below the learning value limit in the "lean" direction but the oxygen sensor continues to recognize "System Too Rich".