Retrofit Daytime Running Light (DRL)

BMW Motorrad Daytime Running Light (DRL) retrofits are typically performed using one of two methods: activating the factory-equipped DRLs via coding or installing an aftermarket lighting system. The procedure varies significantly depending on the bike's model year, regional specifications, and hardware. 

Method 1: Enabling factory DRLs via coding

This procedure is applicable to modern BMW motorcycles equipped with a TFT display and the necessary headlight hardware for DRL functionality, such as newer S 1000 RR, R 1250 GS, and F 900 models. In some regions (like the US), this feature is disabled by default and must be activated with a diagnostic tool. 

Tools required

• Diagnostic tool: A
  GS-911
  from Hex Innovate is commonly used.

• Computer or smartphone: For running the diagnostic software.

• Battery charger: To maintain battery voltage during the coding process. 

Procedure with GS-911

1. Prepare the motorcycle:

   1. Connect the bike to a battery charger to ensure a stable power supply.

   2. Plug the GS-911 device into the bike's OBD-2 diagnostic port, typically located under the rear seat.

   3. Turn the ignition on.

2. Connect and select vehicle:

   1. Connect to the GS-911 device via Wi-Fi or USB.

   2. Select your motorcycle model from the software's menu.

3. Perform the retrofit:

   1. Navigate to "Service Functions" or "Retrofits and Removals".

   2. Select the "Daytime Running Lights" retrofit.

   3. Click "Perform Retrofit." This is a two-part process that will automatically restart the dash during coding.

4. Complete the process:

   1. Allow the software to perform the controller coding for the body control module.

   2. After the procedure is complete, run an auto-scan and clear any fault codes.

5. Verify function:

   1. Turn the key on. An "A" icon for "Auto Daytime Running Lights" should now appear on the dash.

   2. Check your bike's settings menu. An option to enable or disable DRLs will now be available.

   3. With the engine running, the DRLs will be active, and the headlight will automatically switch on in low-light conditions. 

Method 2: Installing aftermarket DRLs

This method is suitable for older BMWs without factory DRLs or for anyone who prefers more powerful or customized aftermarket lights.

Tools and components required

• Aftermarket DRL kit: Kits from manufacturers like DENALI, Touratech, or SW-Motech.

• Wiring harness with relay and fuse: Included with most kits.

• Optional: CANBUS accessory manager: For integrating with the bike's stock switches (e.g., DENALI CANsmart or HEX ezCAN).

• Hand tools: Wrenches, crimping tools, zip ties, etc.. 

Procedure with a CANBUS accessory manager

1. Mount the lights: Install the aftermarket LED lights using the supplied brackets, typically on crash bars or forks.

2. Install the manager: Connect the accessory manager to the battery and the bike's CANBUS connector, usually found under the seat.

3. Connect the lights: Run the new light wiring to the auxiliary manager.

4. Configure with software: Use the manager's software on a computer or smartphone to map the new DRLs to one of the bike's existing switches (e.g., the turn signal cancel button). This also allows for features like brightness control.

5. Test: Reconnect the battery and test all functions. 

Procedure with a traditional relay-based kit

1. Mount the lights: Install the lights and brackets.

2. Route the harness: Run the supplied wiring harness, which contains a relay and fuse, from the lights to the battery.

3. Connect to a switched power source: To ensure the lights turn off with the ignition, connect the relay's trigger wire to a switched 12V power source, such as a taillight wire.

4. Connect to the battery: Attach the main power wires to the battery terminals.

5. Install the switch: Mount the kit's dedicated on/off switch on the handlebar and connect its wires to the relay.

6. Test: Reconnect the battery and test all functionality.