3. Check IGN SW. On Signal

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 ON.
Check voltage between BCM connector M18 terminal 38 and ground.
1. 38 (G/R) -- Ground: Battery voltage

OK or NG

OK >> GO TO 4
NG >> Check the following.
- 10A fuse [No. 12, located in the fuse block (J/B)]
- Harness for open or short between fuse and BCM connector
  Ref. part No. C2

Fig 1: Checking Voltage Between BCM Connector M18 Terminal 38 & Ground

Courtesy of NISSAN MOTOR CO., U.S.A.