P1687 P1687 OBD Code Definition: P1687 No Cluster Bus Message P1687 OBD Code Description: OBD Code P1687 No Cluster Bus Message OBD Code P1687 Driver 5 Line 7 OBD Code P1687 Automatic Transaxle FI Signal B High Input OBD Code P1687 Metering Oil pump stepping motor circuit malfunction