Programming Key Fobs
- Execute the correct shunt positioning to enter and exit programming mode.
- Synchronize wireless key fobs to the receiver within the required timing window.
- Manage receiver memory capacity to ensure the correct fobs remain programmed.
- Programming shunt — Bridge pins 1–2 to initiate programming or pins 2–3 to hold and end the process.
- Wired pendant — Standard control interface that must be removed prior to programming to prevent accidental operation.
- KWR-003 Key Fob — Wireless transmitter operating at 315 MHz used to signal the receiver during the sync window.
Operating frequency is 315 MHz. Up to 4 fobs per receiver — a 5th drops the 1st.
How It Works
Operating Frequency and Capacity
The wireless system operates on a frequency of 315 MHz. The receiver is designed to store a maximum of 4 fobs; adding a 5th fob will automatically drop the 1st programmed fob from memory.
Visual Confirmation States
The receiver LED provides feedback during the programming sequence. A red flash indicates the system is ready for a signal, while a 2-second green flash followed by red confirms a successful fob sync.
Safety Isolation
Before beginning the electronic pairing process, the wired pendant must be physically removed from the system. This isolation prevents accidental hydraulic or mechanical operation while the technician is focused on the receiver.
Step-by-Step Procedure
0/5 doneDiagnostic Chart
| Symptom | Check | Spec / Expected | Likely cause & fix |
|---|---|---|---|
| Receiver fails to enter programming mode (No Red LED). | Verify the position of the programming shunt. | Pin 1 and Pin 2 | The shunt is either missing or placed on the incorrect pins. Basis: KTI Wireless Instruction Manual (P/N KWR-003) |
| LED does not flash green after pressing fob button. | Verify the time elapsed since the LED began flashing red. | Within 3–5 seconds | The sync window timed out before the fob button was pressed. Basis: KTI Wireless Instruction Manual (P/N KWR-003) |
| The first programmed fob no longer operates the system. | Count the total number of fobs synced to the receiver. | Up to 4 fobs per receiver | A 5th fob was programmed, which dropped the 1st fob from the memory list. Basis: KTI Wireless Instruction Manual (P/N KWR-003) |
| System remains in programming mode after syncing. | Verify the final position of the programming shunt. | Pin 2 and Pin 3 | The shunt was left on pins 1–2 instead of being moved to the hold position. Basis: KTI Wireless Instruction Manual (P/N KWR-003) |
At the Bay: Diagnose the Case
CASE 1 / 4
Receiver fails to enter programming mode (No Red LED).
- Test
- Compare
- Correct
Select the next check
Basis: KTI Wireless Instruction Manual (P/N KWR-003). A likely cause is a hypothesis; confirm it with the applicable service procedure before repair.
Common Bay Mistakes
- ✕ Leaving the wired pendant connected during the sync process.
- ✕ Exceeding the 5-second window to press the fob button after the red LED flashes.
- ✕ Attempting to program a 5th fob without realizing it deletes the 1st fob.
- ✕ Forgetting to move the shunt to Pin 2 and Pin 3 to end the session.
- ✕ Attempting to sync fobs that do not operate on 315 MHz.
Quick Check
Practice only — not scored.
Plan the Service Sequence
Planning practice only. Follow the applicable manufacturer's instructions, employer safety program and qualified supervision on real equipment.
Plan the first action. Compare the service steps with the bay mistakes.
Hands-on: Shop Test Equipment
Hydraulic Pressure & Relief Gauge
0–5,000 psi gauge on the pump pressure port, DC clamp meter, battery voltmeter
🛠 Equip your bay for this test →Symptom: Routine check before a customer pickup.
Spec limits used
- 3,200 psi — Primary relief (factory preset) (KTI Hydraulics Troubleshooting Manual 2019)
- 1,500 psi — Secondary relief, circuit 111 (KTI Hydraulics Troubleshooting Manual 2019)
- below 9 V — Low-voltage alarm (KTI remote)
- illustrative only — Motor current & voltage drop (General shop practice)
Simulated readings for practice. Always follow the manufacturer's procedure and values on a real trailer.
Source: KTI Wireless Instruction Manual (P/N KWR-003) — 2