2. Check UART Line Input/Output Signal 2

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

Check signal between automatic drive positioner control unit connector ground, with oscilloscope.

Fig 1: Signal Chart

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

Fig 2: Checking Signal

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

OK or NG

OK >> GO TO 3.
NG >> Check the following.
- When voltage wave form does not appear with a constant voltage (approx. 5V), replace automatic drive positioner control unit.
- When voltage wave form does not appear with a constant voltage (approx. 0V), replace driver seat control unit.