4. Power Supply Check

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.

Disconnect transmitter.
Check voltage between auto anti-dazzling inside mirror (integrated homelink transmitter) connector R7 terminal 5 and ground.
1. 5 (B/R) - Ground: Battery voltage

OK or NG

OK >> GO TO 5
NG >> Repair or replace harness.

Fig 1: Checking Voltage Between Anti-Dazzling Inside Mirror Connector R7 Terminal 5 & Ground

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