OBD-II Self-Diagnosis
WARNING: This page is about a different car, the 2004 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
- A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through the blinking pattern of the O/D OFF indicator or the malfunction indicator lamp (MIL). Refer to the table on SELF-DIAGNOSTIC RESULT TEST MODE for the indicator used to display each self-diagnostic result.
- The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM memories.
Always perform the procedure "HOW TO ERASE DTC " to complete the repair and avoid unnecessary blinking of the MIL.
- The following self-diagnostic items can be detected using ECM self-diagnostic results mode only when the O/D OFF indicator lamp does not indicate any malfunctions. For details of OBD-II, refer to ENGINE CONTROL SYSTEM - QR25DE
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- - park/neutral position (PNP) switch
- Certain systems and components, especially those related to OBD, may use a new style slide-locking type harness connector.
For description and how to disconnect, Refer to HOW TO CHECK TERMINALS .