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DTC Confirmation Test

WARNING: This page is about a different car, the 2002 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition on. Using scan tool, select DATA MONITOR mode, and read engine coolant temperature. If engine coolant temperature is less than 194°F (90°C), go to next step. If engine coolant temperature is not less than 194°F (90°C), turn ignition off, and allow engine to cool.
  2. Start engine. Drive vehicle at a speed of more than 43 MPH for 100 consecutive seconds. This may be accomplished in shop by raising drive wheels. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE . If 1st trip DTC is not detected, system is okay at this time.
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