MaxxECU online help

MaxxECU has digital inputs (DIN x) that can be used to trigger certain Digital input functions.

Note: User CAN inputs, AIN x can also be used to trigger digital input functions.

 

 

Digital Input (DIN x)

Example wiring to ground a DIN x (with pullup activated) or AIN (temperature) (since these AIN (temp) have built-in pullup they can be triggered when grounded.

 

Example MTune setting for a wired digital input 1 switch which will trigger the digital input function Stop engine/prevent start.

 

 

Using AIN (temperature) as digital input

Example wiring to ground a DIN x (with pullup activated) or AIN (temperature) (since these AIN (temp) have built-in pullup they can be triggered when grounded.

 

In the above example a simple switch is connected between GND and AIN 1 to close the circuit and activates the secondary boost target in boost control.

 

 

Using AIN (0-5V) as digital input

Example wiring to trigger a digital input function on a AIN (0-5V) input.

 

You can also use an AIN (0-5V) to trigger a digital input by wiring a +5V or +12V source through a switch to a AIN (0-5V) input.

 

In the above example where we set AIN 4 active level to active high, the boost target changes to boost target 2.

 

 

Function

Specifies the digital input function to trigger when the input gets active.

 

Function 2

Specifies the digital input function to trigger as function 2 when using the below latch function.

 

latch

Adds a latching feature of the digital input, with possibility to trigger a secondary digital function.

•None (active while the input is active)

•Push: on, Push: off

•Push: on, long Push: off

•Push: on, long Push: function 2 on, push: both off

Note: Long-push = 0.5seconds.

 

Description

User-defined name for this input to easily identify what's connected.

 

Active level

Specifies whether function is active when voltage goes from high to low (falling edge) or low to high (rising edge).

 

Pullup

Specifies whether to use internal pullup resistor (2500 ohm to +5V) on selected input to trigger input when connected to ground. if you do not enable the Pullup on this input, you must either input +5V or +12V to trigger it.

Note: Not available on all ECUs and only available when set to digital input.

 

Input type

Specifies the type (hall or VR) of sensor wired to the input.

•Digital input - +3,3 to +3,5V square wave signal is required to trigger input when set to digital input (up to 10kHz).

•VR input - Requires a - 0,16V to +0,16V (0,32V peak-peak) signal to trigger input when set to VR (up to 10kHz).

Note: Not available on all ECUs.

 

 

Also, see wiring information - Digital inputs.

 

 

Digital inputs available in MaxxECU

•AC clutch disable

•AC request/idle up

•Actuator target state

•Advanced warning system, enable

•Advanced Warning System, Enable Cut

•After launch power limit disable

•Angle logger

•Anti-lag enable

•Audi trigger cam sensor

•Auto transmission gear selector

•Auto transmission lockup enable

•Auto transmission manual mode switch

•Auto transmission, enable WOT RPM shift

•Auto transmission, switch to 2nd shift table

•Avg fuel consumption reset

•BMW BSD bus 1 Input.

•BMW MS 43 Steering Wheel Buttons

•Boost Control Enable

•Boost target switch

•Brake pedal/stop light active

•CAN, disable all TX

•Chassis SPORT mode

•Clutch switch

•Counters

•Cruise control, Abort

•Cruise control, Accelerate

•Cruise control, Decelerate

•Cruise control, Resume

•Cruise control, Set

•Direct ECU output control

•DCT clutchkick/burnout mode

•DCT drivelogic DOWN

•DCT drivelogic UP

•Disable traction control

•Edge-triggered pulse output X trigger input

•EGT power cut, enable

•Electric waterpump override input

•Engine runtime+max reset

•Error codes, clear all codes

•Ethanol sensor

•E-Throttle Volvo backup pedal position (PWM)

•E-Throttle Volvo main and backup pedal position (PWM)

•External lambda 1, error

•External lambda 2, error

•External lambda 1, valid

•External lambda 2, valid

•Extra fuel table X table activation switch

•Extra ignition table X table activation switch

•Extra fuel/ign table activation switch (all)

•FAN + Electric waterpump override input

•Fan override input

•Fuel adaptation, enable adaptation

•Fuel Pump Override

•Hella oil pressure and temperature sensor

•Idle control disable

•Ignition key

•Launch control switch, enable stage

•Lean power cut, enable

•Logging, reset and start new file

•Logging, run

•MDash page/reset CEL (hold)

•Nitrous enable switch

•Nitrous purge

•Nitrous stage x activate

•Nitrous timer run

•Power management system disable

•Power management system enable

•Pulse output x trigger input

•PWM Input Frequency+Duty

•Rolling launch control switch

•RPM limit, enable GP limiter

•RPM limit, use secondary limit RPM

•RPM limit, use secondary mode

•SENT protocol input

•Shiftcut

•Shiftcut enable

•Speed limit X enable/SET

•speed limit reset

•Speedsensor drive shaft RPM

•Speedsensor transmission input shaft RPM

•Speedsensor wheelspeed front/rear right/left

•Starter motor input

•Stop engine/prevent start

•Throttle blip enable

•Throttle blip trigger

•Timer X start/stop/reset

•Transbrake bump/creep button

•Transbrake hold button

•Transmission Converter Slip Request

•Transmission DOWN shift

•Transmission DRIVE switch

•Transmission Gear 1 lockout

•Transmission Mode Switch

•Transmission Neutral Switch

•Transmission Reverse Switch

•Transmission UP shift

•Trigger CAM/HOME

•Trigger, HOME+CAM dual sensor, cam sensor

•Trigger, TRIGGER sensor

•Turbo speed sensor

•User Cut Table X, enable

•User PID enable control

•Vehicle speed sensor VSS (simple)

•Virtual fuel tank Decrease

•Virtual fuel tank Increase

•Virtual fuel tank reset level

•VVT Cam pos. exhaust/intake

•Wheel setup (use setup 2 when active)

•Water/Methanol Injection, low-level sensor

 

 

How to make digital input 3 (DIN 3) visible?

MaxxECU V1/RACE and PRO (REV4+) has the ability to use GPO 7 as digital input 3 (DIN 3).

Note: The GPO7/DIN3 has a fixed +5V pullup.

 

GPO 7 used as digital input 3 (DIN 3) in the above example in Output --> Output config.

 

 

In Inputs --> Digital inputs, DIN 3 is now available for usage in MaxxECU.

 

 

Video tutorial