Automatic Drive Positioner (DTC/Circuit Diagnosis)
WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK LIFTING MOTOR LH (REAR) POWER SUPPLY
CONSULT
- Turn the ignition switch to ACC.
- Perform "SEAT LIFTER RR" in "Active Test" mode of "AUTO DRIVE POS.".
- Check voltage between driver seat control unit harness connector B223 and ground.
(+)
(-)
Condition
Voltage
(Approx.)
Driver seat control unit
Connector
Terminal
B223
40
Ground
SEAT LIFTER RR
OFF
0 V
UP
0 V
DWN (downward)
Battery voltage
41
OFF
0 V
UP
Battery voltage
DWN (downward)
0 V
Is the inspection result normal?
YES
Replace lifting motor LH (rear). Refer to Removal and Installation .
NO
GO TO STEP 2
- CHECK LIFTING MOTOR (REAR) CIRCUIT
- Turn ignition switch OFF.
- Disconnect driver seat control unit and lifting motor LH (rear).
- Check continuity between driver seat control unit harness connector B223 and lifting motor LH (rear) harness connector B228.
Driver seat control unit
Lifting motor LH (rear)
Continuity
Connector
Terminal
Connector
Terminal
B223
41
B228
6
Yes
40
4
- Check continuity between driver seat control unit harness connector B223 and ground.
Driver seat control unit
Ground
Continuity
Connector
Terminal
B223
41
No
40
Is the inspection result normal?
YES
GO TO STEP 3
NO
Repair or replace harness.
- CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident .
Is the inspection result normal?
YES
Replace driver seat control unit. Refer to Removal and Installation .
NO
Repair or replace the malfunctioning part.