BMW - 2 Series F23 - Owners Manual - 2014 - 2020

AiM Infotech BMW F series (1-2-3-4-5er) MINI F56 OBDII and ECU connections Release 1.03 1 Supported years and models This document explains how to connect AiM devices to the vehicle’s engine control unit (ECU) data bus. Supported years and models are: • • • • • • BMW 1 Series (F20/F21) BMW 2 Series (F22/F23/F87) BMW 3 Series (F30/F80) BMW 4 Series (F32/F82) BMW 5 Series (F10) MINI F56 2011 - 2018 2014 - 2020 2012 – 2018 2013 – 2019 2010 - 2016 from 2014 2 Connection and configuration AiM devices can be connected to these models in two different ways: • through the OBDII plug, using a standard OBDII protocol (easy connection, basic parameters) • through a direct connection to the ECU CAN wires, using a specific BMW CAN protocol. 1 2.1 OBDII Connection These models feature a standard diagnostic protocol based on CAN, accessible on the OBD II plug placed on the driver side, in the footrest area. For this installation refer to the following pinout of the car’s plug (vehicle side – front view) and connection table: OBDII Pin Pin function AiM cable 6 CAN High CAN+ 14 CAN Low CAN- 2.2 OBDII - Race Studio configuration Before connecting the AiM device to the OBD II plug, set all functions using AiM software Race Studio. The parameters to set in the device configuration are: • ECU manufacturer: • ECU Model: OBD_II CAN 2 2.3 ECU CAN Connection These models feature a “CAN powertrain” data bus accessible in different locations (i.e. under the gearbox lever, close to the steering column, in the wall on the right side of the car - footrest area - see following picture). It is strongly recommended to refer to a skilled technician to perform this kind of installation. Wire colours are standardized as indicated here below, and are always twisted together: Pin function CAN High CAN Low BMW ECU cable colour Blue/Red Red AiM cable label CAN+ CAN- AiM color cable White Blue AiM cable label CAN+ CAN- AiM color cable White Blue An alternative colour code is the one here following. Pin function CAN High CAN Low BMW ECU cable colour Black Yellow 3 2.4 ECU CAN – Race Studio configuration Before connecting the AiM device to the ECU, set all functions using AiM software Race Studio. The parameters to set in the device configuration are: • ECU manufacturer: • ECU Model: BMW F_Series (RS3 only) F_21 (RS2 only) 3 Protocols Channels received by AiM devices change according to the selected protocol. 4 3.1 “OBDII – CAN" protocol Channels received by AiM devices configured with “OBDII – CAN” protocol are: CHANNEL NAME FUNCTION OBDII RPM OBDII SPEED OBDII ECT OBDII TPS OBDII IAT OBDII MAP OBDII MAF OBDII FUEL LEV OBDII PPS RPM Speed Engine coolant temperature Throttle position sensor Intake air temperature Manifold air pressure Manifold air flow Fuel level Pedal position sensor Please note: channels listed above are those polled by AiM devices. They may or may not come across in the data stream depending on models. RPM, TPS, ECT and speed are generally available. 5 3.2 “BMW – F_Series" protocol Channels received by AiM devices configured with "BMW - F_Series" protocol are: CHANNEL NAME FUNCTION RPM RPM Gear Gear Speed Vehicle speed Wheel Speed RL Wheel speed rear left Wheel Speed RR Wheel speed rear right Wheel Speed FL Wheel speed front left Wheel Speed FR Wheel speed front right Long Acc Inline acceleration Lat Acc Lateral acceleration Yaw Rate Yaw rate Eng T Water temperature Oil T Oil temperature Amb T Ambient temperature Gear T Gearbox temperature EGT Exhaust gas temperature Brake P F Front brake pressure Brake P R Rear brake pressure Ambient P Barometric pressure RailP Rail pressure Steering Angle Steering angle Throttle Throttle position Pedal Pos Throttle pedal position Eng Load Engine load Odometer Odometer Fuel km Fuel distance 6 Battery Volt Battery voltage Fuel used Fuel level Gbx Torque Gearbox torque Eng Torque Engine torque ABS Function ABS ASC Function ASC Brake Number Fuel Raw ul Fuel used per cylinder Indicator lights Direction lights Fuel Lamp Fuel reserve lamp Hi Beam Hi beam lamp Eng Mode Engine mode DSC DSC setting Clutch Sw Clutch switch Rpm MAX Max RPM Eng Heat St Engine heat status Technical note: not all data channels outlined in the ECU template are validated for each manufacturer’s model or variant; some of the outlined channels are model and year specific, and therefore may not be applicable. 7 3.3 “BMW – F_21" protocol Channels received by AiM devices configured with "BMW - F_21" protocol are: CHANNEL NAME FUNCTION ECU RPM RPM ECU AIR PRESS Intake air pressure ECU PEDAL POS Throttle pedal position ECU WDKBA Reference throttle valve position ECU WHS RL Wheel speed rear left ECU WHS RR Wheel speed rear right ECU WHS FL Wheel speed front left ECU WHS FR Wheel speed front right ECU GEAR Gear ECU THROTTLE Throttle position ECU STEER ANG Steering angle ECUVEH SPEED Vehicle speed ECU BRK STATE Brake switch state Technical note: not all data channels outlined in the ECU template are validated for each manufacturer’s model or variant; some of the outlined channels are model and year specific, and therefore may not be applicable. 8