Automatic Drive Positioner (DTC/Circuit Diagnosis)

1. Turn ignition switch ON.
2. Read voltage signal between driver seat control unit harness connector B222 and ground with oscilloscope.

   (+)		(-)	Condition		Voltage signal
   Driver's seat control unit
   Connector	Terminal
   B222	31	Ground	Seat sliding	Operate	Courtesy of NISSAN NORTH AMERICA, INC.
   				Other than above	0 V or 5 V

Is the inspection result normal?

YES

Replace driver seat control unit. Refer to Removal and Installation .

NO

GO TO STEP 2  .

1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and sliding motor LH.
3. Check continuity between driver seat control unit harness connector B222 and sliding motor LH harness connector B226.

   Driver seat control unit		Sliding motor LH		Continuity
   Connector	Terminal	Connector	Terminal
   B222	31	B226	2	Yes

4. Check continuity between driver seat control unit harness connector B222 and ground.

   Driver seat control unit		Ground	Continuity
   Connector	Terminal
   B222	31		No

Is the inspection result normal?

YES

GO TO STEP 3 

NO

Repair or replace harness.

1. Connect driver seat control unit.
2. Turn ignition switch ON.
3. Check voltage between sliding motor LH harness connector B226 and ground.

   (+)		(-)	Voltage (Approx.)
   Sliding motor LH
   Connector	Terminal
   B226	4	Ground	Battery voltage

Is the inspection result normal?

YES

GO TO STEP 5 

NO

GO TO STEP 4 

1. Turn ignition switch OFF.
2. Disconnect driver seat control unit.
3. Check continuity between driver seat control unit harness connector B222 and sliding motor LH harness connector B226.

   Driver seat control unit		Sliding motor LH		Continuity
   Connector	Terminal	Connector	Terminal
   B222	5	B226	4	Yes

4. Check continuity between driver seat control unit harness connector B222 and ground.

   Driver seat control unit		Ground	Continuity
   Connector	Terminal
   B222	5		No

Is the inspection result normal?

YES

Replace driver seat control unit. Refer to Removal and Installation .

NO

Repair or replace harness.

1. Turn ignition switch OFF.
2. Check continuity between sliding motor LH harness connector B226 and ground.

   Sliding motor LH		Ground	Continuity
   Connector	Terminal
   B226	3		Yes

Is the inspection result normal?

YES

Replace sliding motor LH. Refer to Removal and Installation .

NO

Repair or replace harness.