DTC Confirmation Test

WARNING: This page is about a different car, the 2002 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before proceeding with testing, ensure battery voltage is greater than 11 volts at idle.

Malfunction is detected when improper voltage is sent to ECM through EVAP Canister Vent Control Valve (EVAP-CVCV). Possible causes are:

EVAP-CVCV open or shorted.
Defective EVAP-CVCV.

To set DTC, turn ignition on. Using scan tool, select DATA MONITOR. Start engine and let it idle for at least 8 seconds. If first trip DTC is detected, perform DIAGNOSTIC PROCEDURE .