Method B

WARNING: This page is about a different car, the 2006 Infiniti FX45. However, it is still accessible from the selected car via links, so may be relevant.

Remove ignition coil No. 6.
Connect ignition coil No. 6 (1) and spark plug No. 6 with suitable high-tension wire A as shown, and attach timing light clamp B to this wire.

Fig 1: Attaching Timing Light Clamp To Wire
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Identifying Timing Light
Courtesy of NISSAN MOTOR CO., U.S.A.
Check ignition timing.

Fig 3: Identifying Ignition Timing
Courtesy of NISSAN MOTOR CO., U.S.A.