1. Check TCM Power Source Step 1

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 to ON position. (Do not start engine.)
Check voltage between TCM harness connectors F56, F57 terminals 10(Y), 19(Y), 28(Y/R) and ground.

Fig 1: Check TCM Power Source Step 1
Courtesy of NISSAN MOTOR CO., U.S.A.

Voltage : Battery voltage

OK or NG

OK : GO TO 2.
NG : GO TO 3 .