Soft Top Switch Circuit Check

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.

CHECK SOFT TOP SYSTEM
Soft top is operated.

Operate normally?
- Yes : GO TO 2.
- No : Further inspection necessary. Refer to
CHECK SOFT TOP SWITCH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Soft top switch operated, check voltage between passenger seat control unit connector and ground.
Fig 1: Soft Top Switch Voltage Reference Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Checking Voltage Between Passenger Seat Control Unit Connector & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

*: Turn ignition switch ON and depress brake pedal when soft top switch operates.

OK or NG
- OK : Soft top switch circuit is OK.
- NG : GO TO 3.
CHECK SOFT TOP SWITCH CIRCUIT HARNESS
1. Disconnect passenger seat control unit connector and soft top switch.
2. Check continuity between passenger seat control unit connector B353 terminal 5, 6 and soft top switch connector M14 terminal 3, 4.
  - 5 (R) - 3 (L/B) : Continuity should exist.
  - 6 (GY) - 4 (R/G) : Continuity should exist.
3. Check continuity between passenger seat control unit connector B353 terminal 5, 6 and ground.
  - 5 (R) - Ground : Continuity should not exist.
  - 6 (GY) - Ground : Continuity should not exist.
Fig 3: Checking Continuity Between Passenger Seat Control Unit Connector B353 Terminal 5, 6 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK : Check the condition of the harness and the connector.
- NG : Repair or replace harness between passenger seat control unit and soft top switch.