BMW F30 Gateway connection guide¶

Here is the guide for connecting the PT_CAN, PT_CAN2, power, fan control, and accelerator pedal signals to the Gateway device and ECU.
The main connections needed for this modifications are: A46*1B, X13*1B, and Z8*3B connectors.
This guide is based on N20/N26 engine and DME. Connections for B46/B48 and B58 may be different.

Before you start, please familiarize yourself with:

• CAN Gateway Pinout
• BMW F30 A46*1B pinout
• BMW F30 X13*1B pinout
• BMW F30 Z8*3B pinout

PT_CAN to Gateway Device:¶

• PT_CAN_H:

  • Pin 28 on A46*1B (Blue/Red wire) should be connected to CAN1H (Pin 10 on your Gateway device).

• PT_CAN_L:

  • Pin 13 on A46*1B (Red wire) should be connected to CAN1L (Pin 23 on your Gateway device).

PT_CAN2 to Gateway Device:¶

• PT_CAN2H:

  • Pin 43 on A46*1B (White/Yellow wire) should be connected to CAN2H (Pin 11 on your Gateway device).

• PT_CAN2L:

  • Pin 44 on A46*1B (White/Blue wire) should be connected to CAN2L (Pin 24 on your Gateway device).

Power and Ignition Connections to Gateway Device:¶

• KL30 (Battery Power Supply):

  • Pin 1 on A46*1B should be connected to KL30 IN (Pin 1 on your Gateway device).

• KL15 (Ignition Supply):

  • Pin 22 on A46*1B should be connected to KL15IN (Pin 15 on your Gateway device).

Fan Control Connections:¶

• Fan Cut-Out Relay:

  • Pin 4 on A46*1B is used for the fan cut-out relay and should be controlled by the ECU.

• Fan PWM Signal:

  • Pin 18 on A46*1B is the fan PWM signal and should also be controlled by the ECU.

Accelerator Pedal Connections:¶

• The accelerator pedal should be connected to the ECU or to the analog inputs on the Gateway device in case you want to send throttle position over the CAN bus.

• 5V Supply for Accelerator Pedal:

  • Pins 7 and 24 on A46*1B provide the 5V supply for the accelerator pedal.

• Ground for Accelerator Pedal:

  • Pins 11 and 27 on A46*1B are the ground connections for the accelerator pedal.

• Signals for Accelerator Pedal:

  • Pins 16 and 21 on A46*1B are used for the two signal outputs from the accelerator pedal.

X13*1B Connector Connections:¶

• Pin 1 and Pin 11:

  • These pins control the AC compressor on the engine. Both components are controlled by the FEM (Front Electronic Module), and it is recommended to use the original BMW AC compressor.

• Pin 9:

  • This pin controls the starter. It is capable of driving a 2JZ starter and is also controlled by the FEM.

Z8*3B Connector Connection: ¶

• KL31 (Ground):

  • Pin 3 on Z8*3B should be used as KL31 for the Gateway device.

• KL15 (Ignition Supply for ECU):

  • Pin 1 on Z8*3B should be used to control the main relay for the standalone ECU.

Notes:¶

• Ensure that all connections are securely made and wires are properly insulated.
• For CAN signals, use twisted pairs to minimize electromagnetic interference, ensuring the integrity of communication between the vehicle and the Gateway device.
• Double-check all connections to prevent any miswiring that could damage components or cause malfunction.