O/D Off Indicator Light
WARNING: This page is about a different car, the 2002 Nissan Sentra, 2002 Infiniti G20, 2001 Nissan Sentra, and 2001 Infiniti G20. However, it is still accessible from the selected car via links, so may be relevant.
The ECM provides emission-related On-Board Diagnostic (OBD-II) functions for transaxle system. One function provided by ECM is to receive a signal from TCM when transaxle faults are OBD-II related. These faults are indicated by MIL. The TCM SELF-DIAGNOSTIC PROCEDURE is performed to confirm faults communicated to ECM from TCM and to check other transaxle related concerns. The O/D OFF indicator light is used to display TCM flash codes (judgement flickers). Always perform TCM SELF-DIAGNOSTIC PROCEDURE after DTCs have been retrieved using Generic Scan Tool (GST).