BMW M54 MS45.1 PNPECU Wiki V5

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PNPECU MaxxECU M54 MS45.1 solution

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This page refers to version 5 PNPECU M54 MS45.1 solution only. Make sure to check the adapter tag for your version.

21/5/2023 - Version 5 is latest.

PNPECU has developed the M54 solution to satisfy customer requests to allow the M54 engine to be fully controlled.

Adapter extra connector information

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See bottom of this page for the pinouts of these auxiliary connectors

• 18 pin Auxiliary connector part numbers
  • Connector - https://www.te.com/usa-en/product-1-962692-2.html
  • Terminals - https://www.te.com/usa-en/product-5-963716-1.html

X6000-1 and X6000-5 terminals for spare functions (12V, GROUND, CANBUS HUB)

X6001 IS THE BLACK CONNECTOR

X6005 IS THE WHITE CONNECTOR


  • Terminals - https://www.te.com/usa-en/product-964284-2.html

Transmission compatibility

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This is a complicated subject as at the time of writing there are solutions for external control of DCT, 6HP and 8HP transmissions out of BMWs, at the same time MaxxECU provides it´s standardized can bus output which multiple transmission controllers are able to make use of for just about any transmission out there.

There is no direct support for the original 4HP/6HP BMW TCU and is very unlikely it will ever exist.

For direct PNP communications with a stock BMW DCT transmission with a BMW TCU refer to this page - https://www.maxxecu.com/webhelp/advanced-bmw_dct.html

what this means is that the BMW TCU believes it´s listening and talking to an OEM BMW DME.
The MaxxECU is not directly controlling the transmission but sending and receiving signals that emulate the BMW DME.

MaxxECU is working on adding other BMW newer transmissions to the emulation compatibility list.

100% compatible with all manual gearboxes!

M54 OEM Sensors Usage

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• MAF is not used - the signal is available in the adapter housing (X6003-27) if wanted.
• VSS digital signal is not used - the signal is available in the adapter housing (X6003-40) if wanted
• Brake switch signal is not used - the signal is available in the adapter housing (X6003-41) if wanted
• Engine oil pressure switch - the signal is available in the adapter housing (X6003-24) if wanted
• Rear bank pre-cat - not used but available by adding external lambda controller. Note this is a LSU4.2 sensor


• Camshaft signals - used as OEM
• Radiator temperature - used as OEM
• Coolant temperature - used as OEM
• Front bank pre-cat lambda sensor - used as OEM. Note this is a LSU4.2 sensor
• TPS sensor - used as OEM
• Vehicle Speed Sensor Rear Right - used for vehicle speed
• Knock sensors - used as OEM
• AC Compressor Enable - used as OEM via CANBUS
• AC Compressor Activate - used as OEM via CANBUS
• Clutch switch - used as OEM
• Oil temperature - used as OEM
• Steering wheel switches

M54 OEM Actuator Usage

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• Ignition coil wiring
• Tachometer signal
• Fuel pump relay
• Idle control valve
• Vanos control
• AC Compressor relay
• EVAP Solenoid
• DISA
• Electric fan

• MS54.1 uses BMW BSD protocol and the adapter has the MaxxECU BSD module. See below for the pinout.

CAN BUS Compatibility

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The E46 the M54 originally came in did communicate with the rest of the vehicle via CAN BUS. Thanks to the MaxxECU it is possible to fit the engine into other BMWs also that require information via CAN BUS

5/11/2022 -

E46 - compatible with BMWs of similar vintage
E39 - compatible with BMWs of similar vintage
E9x - compatible with BMWs of similar vintage
MaxxECU provides OEM BMW CAN BUS output for the above BMW vehicles. It also supports a vast array of other cars which a M54 can be fitted to thanks to that. Refer to this webpage for latest options and relevant information - https://maxxecu.com/webhelp/can-oem.html

Options at ordering

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Not everyone is going to need or want the same thing with their ECU conversion.

Ignition outputs
• Smart coils - Customer will install logic coils in place of original coil wiring
• Stock coils - Adapter housing provides ignition drivers.

ECU Model
• Race - All EGT inputs are spare, 3 Analog inputs are spare, 1 Digital inputs are spare, 2 Low side output is spare, 2 High side outputs are spare, 2 full H-bridge.


MaxxECU DCT Adapter loom
This is a selectable option so that the webstore doesn´t incorrectly calculate shipping cost

EGT Sensor
This is a selectable option so that the webstore doesn´t incorrectly calculate shipping cost

• Single is for when you are planning to monitor pre turbine inlet temperature
• Dual is for when you are planning to monitor pre turbine inlet temperature on a twin setup or each side of the engine
• Six is for when you are planning to monitor individual cylinder temperatures

Injector
This is a selectable option so that the webstore doesn´t incorrectly calculate shipping cost

Race adapter pinout information

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Below is the pin functions of the M54 MS45.0 V5 adapter.

Race Connector 1 - 48pin

Pin number	Function	Information
A1	GPO 5	BSD Output
A2	IGN 1
A3	IGN 2
A4	GPO 8 / Tacho output
B1	GPO 6
B2	IGN 3
B3	IGN 4
B4	GPO 1	ELECTRIC FAN PWM
C1	GPO 7	BSD Digital input
C2	IGN 5
C3	IGN 6
C4	GPO 2	FUEL PUMP RELAY
D1	WBO2 Heater
D2	IGN 7	AC COMPRESSOR RELAY
D3	IGN 8	DISA VALVE
D4	GPO 3	ELECTRIC THERMOSTAT
E1	CAN High	Spare AUX 18/5, X6005/5 AND X6005/6
E2	CAN Low	Spare AUX 18/6, X60005/8 AND X6005/9
E3	GND Shield
E4	GPO 4
F1	Coolant temp input
F2	Air temp input
F3	WBO2 VREF
F4	WBO2 VS
G1	5V Supply output
G2	TPS
G3	WBO2 IP
G4	WBO2 RCAL
H1	Sensor GND
H2	Trigger GND
H3	Trigger
H4	Home	INTAKE CAMSHAFT
J1	AIN 1	OIL TEMPERATURE
J2	AIN 2	RADIATOR OUTLET TEMPERATURE
J3	AIN 3	TPS2
J4	AIN 4	PPS2
K1	INJ 1
K2	INJ 2
K3	DIN/VR 1	EXHAUST CAM SIGNAL
K4	DIN/VR 2	CLUTCH SIGNAL
L1	INJ 8	VANOS EXHAUST SOLENOID
L2	INJ 7	VANOS INTAKE SOLENOID
L3	INJ 6
L4	Power GND
M1	INJ 3
M2	INJ 4
M3	INJ 5
M4	12V

Race Connector 2 - 32pin

Pin number	Function	Information
A1	EGT 5+
A2	EGT 6+
A3	EGT 7+
A4	EGT 8+
B1	EGT 5-
B2	EGT 6-
B3	EGT 7-
B4	EGT 8-
C1	EGT 1+
C2	EGT 2+
C3	EGT 3+
C4	EGT 4+
D1	EGT 1-
D2	EGT 2-
D3	EGT 3-
D4	EGT 4-
E1	Knock GND
E2	Knock 1
E3	Knock 2
E4	AIN 6	Spare input AUX 18/13
F1	AIN 7	Spare input AUX 18/14
F2	AIN 8	Spare input AUX 18/15
F3	DIN/VR 4	STEERING WHEEL BUTTONS
F4	DIN/VR 5	Spare input AUX 18/12
G1	GPO 15	Spare output AUX 18/10
G2	GPO 16	Spare output AUX 18/11
G3	AIN 5	PPS1
G4	Power GND
H1	GPO 14	IDLE CLOSE
H2	GPO 11	DRIVE BY WIRE NEGATIVE
H3	GPO 13	IDLE OPEN
H4	GPO 12	DRIVE BY WIRE POSITIVE

Auxiliary connector - 18pin

Pin number	Function	Information
1	12V SUPPLY
2	5V SUPPLY
3	ANALOG GROUND
4	POWER GROUND
5	CAN HIGH
6	CAN LOW
7	GPO 4
8	GPO 6
9
10	GPO 15
11	GPO 16
12	DIN 5
13	AIN 6
14	AIN 7
15	AIN 8
16	5V SUPPLY
17	5V SUPPLY
18	ANALOG GROUND

Adapter ECU side connector X6000

Pin number	Function	Information
X6001-1	SWITCHED 12V	USED
X6001-2	SWITCHED 12V	USED
X6001-3	SWITCHED 12V	SPARE FROM MAIN RELAY
X6001-4	SWITCHED 12V	SPARE FROM MAIN RELAY
X6001-5	SWITCHED 12V	SPARE FROM MAIN RELAY
X6001-6	POWER GROUND	USED
X6001-7	POWER GROUND	USED
X6001-8	POWER GROUND	USED
X6001-9	POWER GROUND	SPARE
X6002-1	INJECTOR 1
X6002-2	INJECTOR 2
X6002-3	INJECTOR 3
X6002-4	INJECTOR 4
X6002-5	INJECTOR 5
X6002-6	INJECTOR 6
X6002-13	IGNITION 1
X6002-14	IGNITION 2
X6002-15	IGNITION 3
X6002-16	IGNITION 4
X6002-17	IGNITION 5
X6002-18	IGNITION 6
X6002-19	IGNITION 7	DISA VALVE
X6002-19	IGNITION 8	AC COMPRESSOR RELAY
X6003-1	COOLANT TEMP SENSOR
X6003-2	AIR TEMP SENSOR
X6003-3	TPS1
X6003-4	TPS2
X6003-5	PPS1
X6003-6	PPS2
X6003-7	CRANK +
X6003-9	EOT
X6003-12	CAN High	FROM ECU
X6003-13	CAN High	Spare CANBUS connection
X6003-14	CAM SYNC	INTAKE CAM
X6003-16	EXHAUST VANOS
X6003-18	RADIATOR OUTLET TEMP
X6003-19	WBO2 PIN 1
X6003-20	WBO2 PIN 2
X6003-21	WBO2 PIN 3
X6003-22	WBO2 PIN 5
X6003-23	WBO2 PIN 6
X6003-24	EOP SWITCH	Not wired but available
X6003-25	CAN Low	FROM ECU
X6003-26	CAN Low	Spare CANBUS connection
X6003-27	MAF Signal	available but not used
X6003-28	KNOCK 1	CYLINDERS 1-3
X6003-29	KNOCK 2	CYLINDERS 4-6
X6003-40	VSS	Available but not used
X6003-41	BRAKE SWITCH	Available but not used
X6003-42	CLUTCH SWITCH
X6003-43	KNOCK GROUND
X6003-44	STEERING WHEEL BUTTONS
X6003-45	BSD GPO
X6003-46	BSD DIN
X6004-1	INTAKE VANOS SOLENOID
X6004-5	EXHAUST VANOS SOLENOID
X6004-9	ELECTRIC THERMOSTAT
X6004-10	ELECTRIC FAN PWM
X6004-11	DBW+
X6004-12	ICV OPEN
X6004-13	TACHO
X6004-16	RADIATOR SHUTTER CONTROL	Not wired but available
X6004-21	DBW-
X6004-22	ICV CLOSE
X6004-23	EXHAUST FLAP	Not wired but available
X6004-25	FUEL PUMP RELAY
X6004-27	5V SUPPLY	FROM ECU
X6004-28	5V SUPPLY	TO AUX 18/2
X6004-29	5V SUPPLY	TO AUX 18/16
X6004-30	5V SUPPLY	TO AUX 18/17
X6004-37	ANALOG GROUND	ECU E3
X6004-38	ANALOG GROUND	ECU H1
X6004-39	ANALOG GROUND	TO AUX 18/3
X6004-40	ANALOG GROUND	TO AUX 18/18
X6005-1	12V SWITCHED	FROM MAIN RELAY
X6005-2	12V SWITCHED	FROM MAIN RELAY
X6005-3	N/A
X6003-4	PWR GND
X6003-5	CAN HIGH	Spare CANBUS connection
X6003-6	CAN HIGH	Spare CANBUS connection
X6003-7	PWR GND
X6003-8	CAN LOW	Spare CANBUS connection
X6003-9	CAN LOW	Spare CANBUS connection

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Last change 22.04.2024, 17:18:22