AEM 30-3510 Infinity Plug & Play Harnesses - BMW 2001-2006 E46 M3 - Manual (Page 11)

2001–2006 BMW E46 M3 11
© 2014 AEM Performance Electronics
Rather than OBD2 diagnostics, the SES-Service Engine Soon light is now dedicated to the AEM
“MILOutput” feature. The AEM MILOutput activates if any 1 of the following inputs are in an error state: air
temp, baro pressure, coolant temp, exhaust back pressure, fuel pressure, UEGO #1, UEGO #2, MAF
analog, MAF digital, MAP, oil pressure, or throttle position. If any of these sensors are not used, they
should be turned OFF in the Wizard to avoid any false readings. To activate the MILOutput feature, go to
the Wizard and check “Enable MIL Output” in Diagnostics.
The red oil can light still illuminates if there is low engine oil pressure. However, it will no longer change
to yellow when the engine oil level is low. But, if an aftermarket oil pressure sensor is installed, the oil
can will illuminate yellow and beep if the AEM failsafe “OilPressProtectOut” is triggered. This feature
needs to be activated in the Engine Protection section of the Wizard, as shown below left. Also, there is
a corresponding RPM dependent “OilPressProtect” 1D Table that needs to be set up as well. When the
oil pressure falls below this set value, the Oil Press Protect feature will be activated.
Rather than OBD2 diagnostics, the EML-Engine Malfunction Lamp on the dash warns the driver if the
“DBW_Error_Fatal” has been activated. If this happens, the engine will be shut down for safety and the
error will reset when the ignition key is cycled and the condition that caused the error is no longer
present.
The coolant temperature gauge’s red warning LED, located in the BMW gauge cluster, is programmable.
When the coolant exceeds the value entered in the channel “CoolantHighLEDLimit” the LED will
illuminate (default = 100C).
The 4000 – 9000RPM red and yellow tachometer LEDs (shown)
will now always match the current RPM limiter. For example, if
the 2-step rev limiter is active and targeting 5000RPM, the
tachometer LEDs will move the displayed “redline” to 5000RPM.
This happens even if the engine is idling and not actively
banging against the 2-step limiter. If the 2-step rev limiter is
OFF, but the main rev limiter is set to 7000RPM, the LEDs will
show the displayed “redline” at 7000RPM. If the 3-step rev
limiter turns ON and changes the target rev limiter to 6500RPM,
the LEDs will show the displayed “redline” at 6500RPM.
The main rev limiter is configurable in the setup wizard. The 2-
step and 3-step rev limiters are configurable in the setup wizard
and in corresponding tables. Keep in mind, there are fuel cuts,
spark cuts, ignition retards, and cut start windows. The tachometer LEDs are driven by the lower value
between the fuel and spark cuts and ignores the ignition retard and cut start window RPMs.
The following channels on the BMW CAN bus are available for logging. The AEM traction control utilizes
the CAN wheel speed sensors: CAN_FLWS [MPH], CAN_FRWS [MPH], CAN_RLWS [MPH],
CAN_RRWS [MPH]. The following steering channels are only for data logging: CAN_STEERANGLE
[deg].