DTC Confirmation Test

WARNING: This page is about a different car, the 2003 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before proceeding, ensure battery voltage is more than 10 volts with ignition on.

Turn ignition on. Select DATA MONITOR with scan tool. Ensure COOLAN TEMP/S reading on scan tool is less than 158°F (70°C). Start engine. Maintain the following conditions for 12 seconds:

ENG SPEED: 1100-2450 RPM.
VHCL SPEED SE: more than 43 MPH.
B/FUEL SCHDL: 1-10 msec.

If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE . If 1st trip DTC is not detected, system is okay at this time.