240SX Power Door Locks: troubleshooting, wiring diagram, adjustments and more

Nissan 240sx S13 1989-1994



FYI: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle.

The power door lock system allows you to lock or unlock all doors simultaneously. See figure. Turning the driver's side door key will lock or unlock both doors. Turning the passenger's side door key or pulling the passenger's side lock knob will unlock both doors. Pushing the driver's side lock knob will lock both doors. Pulling the lock knob will unlock both doors.

COMPONENT LOCATIONS

• Body Ground: M57 Behind right side of dash. See figure.
• Body Ground: M116 Behind driver's seat. See figure.
• Circuit Breaker: Under left side of dash, left of fuse block. See figure.
• Door Lock Timer: Behind right side of dash. See figure.

ADJUSTMENTS

TROUBLE SHOOTING

Verify issue by operating suspected system. Visually inspect for obvious signs of mechanical and electrical damage. Inspect for blown fuses. Inspect for loose or corroded connections, damaged wiring harnesses and/or switches. Check for a broken or partially broken wire inside insulation, which could cause system malfunction but prove good in a continuity/voltage check with system disconnected. Ensure any aftermarket electronic equipment is properly installed. If fault is found, repair as necessary.

DOOR LOCK TIMER, SWITCH AND ACTUATOR TESTS

For door lock timer, switch and acutator inspection, see See figure 1 and figure 2.

WIRING DIAGRAM



Did you find this repair info helpful or are improvements needed? Please leave comments below.

Nissan 240sx S13 1989-1994

---