21. Check Air Fuel Ratio (A/F) Sensor 1 Harness

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition switch OFF and disconnect battery ground cable.
Disconnect ECM harness connector.
Disconnect A/F sensor 1 harness connector.
Check harness continuity between the following terminals. Refer to "WIRING DIAGRAM ".

Fig 1: Specifications Data And Reference Values
Courtesy of NISSAN MOTOR CO., U.S.A.
1. Continuity should exist.
Also check harness for short to ground and short to power.

OK or NG

OK: GO TO 22.
NG
1. Repair open circuit or short to ground or short to power in harness or connectors between ECM and A/F sensor 1.
2. GO TO 4 .