DZ15221340030 China Truck SHACMAN X3000 Door Lock Body Electric Lock Body

Usage & Installation Notes

1. Verify Left/Right Side Before Installation

• DZ15221340030 = Usually RIGHT-SIDE DOOR

• Confirm mirror symmetry with old unit or vehicle manual.

• Installing on the wrong side can lead to improper handle alignment or failed operation.

2. Disconnect Battery Before Work

• Always disconnect the negative terminal of the battery before beginning any work involving electrical components.

• Prevents short circuits, accidental actuation, or damage to the vehicle's BCM (Body Control Module).

3. Professional Installation Recommended

• Requires disassembly of the door trim panel, careful handling of fragile clips, and routing of wires.

• Misalignment can cause issues with inner/outer handles, child locks, or emergency release.

4. Check Electrical Connection & Signal

• After installation, test that the lock receives proper 24V control signal from the central locking system.

• Use multimeter or test light to verify power and ground at the connector.

5. Test All Functions Thoroughly
   After reassembly, check:

• Operation via external door handle

• Operation via internal door handle

• Response to central locking button or key fob

• Emergency unlock function (if applicable)

• Child safety lock functionality

6. Lubricate Moving Parts

• Apply graphite-based dry lubricant or silicone grease to pivot points and latches (avoid oil-based products that attract dirt).

• Ensures smooth movement and extends service life.

7. Inspect Linkage Rods and Clips

• Ensure all connecting rods are properly attached and secured with nylon clips.

• Loose rods can result in “no action” when pulling the handle.

8. Avoid Forcing Components

• Never force the lock mechanism during installation.

• Damage to internal gears or actuators is irreversible.

9. Keep Original Harness Connector

• If replacing only the lock body, reuse the original wiring harness plug to avoid splicing or signal errors.