Disable 2018+ Land Rover AKL Active Alarm: Autel IM608, Yanhua ACDP or CG100X?

 All three tools — Autel IM608, Yanhua ACDP, and CGDI CG100X — can disable the active factory alarm on 2018+ Jaguar Land Rover (JLR) All-Keys-Lost (AKL) situations, but they work through very different methods (OBD/jumper bypass vs. module direct/EEPROM writing).

1. Autel IM508S / IM608 II

Method:

OBDII / Jumper-wire connection to the RFA (Remote Frequency Actuator) module using specific CAN wiring diagrams (or Autel’s JLR alarm bypass cable).

CAN Wiring (Typical): CAN-H (Pin 6) → Yellow/Orange; CAN-L (Pin 14) → Yellow/Purple.

Note: Wire colors may vary on some modules — CAN-H (Pin 6) may be Green; CAN-L (Pin 14) may be Brown.

Menu Path:

Manual selection -> [Model] -> [Year] -> Smart Key -> Select Control Unit -> RFA replacement -> Disable anti-theft alarm function

Pros:

• Direct software-driven routine via the diagnostic tablet interface.
• No need to desolder or read/write chips on the board if using the proper CAN jumper configuration.

Cons:

• Requires custom or dedicated jumper wire/bypass connections to the RFA and OBDII port.

2. Yanhua ACDP (Module 24)

Method: Direct CAN-bus connection to the RFA module using ACDP Module 24 License (with a free software update) paired with a PCAN, PTCU, or PECU cable.

Connection Steps:

• Locate the RFA module (do not disconnect the main RFA connector).
• Insert the white CAN_H wire into Pin 2 and the green CAN_L wire into Pin 20 of the RFA connector (verify model-specific diagram).

• Run ACDP app/software, navigate to JLR IMMO-> Program smart key (2018-)-> Replace RFA Program key-> OBD Programming RFA-> Turn off anti-theft alarm, and follow the on-screen prompts to operate.

Pros:

• Free update added to Module 24 for JLR AKL active alarm handling.
• Avoids destructive desoldering by interfacing directly via targeted CAN pins on the RFA harness.

Cons:

Requires Module 24 authorization and specific cables (PCAN/PTCU/PECU)

These cables are included in some ACDP modules, you have the related module, you can use them directly. Otherwise, you need to buy the cable separately.

• PCAN Cable: Included in Yanhua Module 3
• PECU Cable: Included in Yanhua Module 18
• PTCU Cable: Included in Yanhua Module 19 / Yanhua Module 36

3. CGDI CG100X Programmer

Method: Bench/EEPROM flashing of the Body Control Module (BCM) / integrated gateway-BCM chip.

Connection Steps:

• Locate and connect 8 wires to the BCM chip (e.g., 95128 / 95X series EEPROM) following the CG100X wiring diagram.

• Navigate to: 8-pin chip > 95X > 95128 in CG100X software
• Read and save the original chip data.

• Write the modified/alarm-off flash file (sourced via CG technical support or a verified third-party matching the specific model year) back to the chip.

Pros:

• Bypasses live network/OBD lockouts by directly modifying the BCM EEPROM data on the bench.

Cons:

• Requires physical bench hookup (8-wire soldering or clip connection) to the BCM board.
• You must source the exact right alarm-off flash file for your specific model/year variant.

Summary Recommendation

• Choose Autel IM608II/IM508S if you prefer an on-car diagnostic/software routine using custom CAN jumper wires into the RFA/OBD setup.
• Choose Yanhua Mini ACDP if you already have own an ACDP key programmer and want to use its Module 24 license and harness/PCAN bypass method.
• Choose CG100X if you prefer (or are forced into) a bench-programming approach reading/writing the BCM EEPROM chip directly.