Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
100%
Stock ECU being replaced
MAXXECUPRO-C1-K1 INJ 1
MAXXECUPRO-C1-B4 GPO 1
MAXXECUPRO-C1-C4 GPO 2
MAXXECUPRO-C1-K2 INJ 2
MAXXECUPRO-C1-A4 GPO 8/TACHO
MAXXECUPRO-C4-G1 GPO 23
MAXXECUPRO-C1-M1 INJ 3
MAXXECUPRO-C4-G2 GPO 24
MAXXECUPRO-C4-G3 GPO 25
MAXXECUPRO-C1-M2 INJ 4
MAXXECUPRO-C1-D4 GPO 3
L no data
MAXXECUPRO-C1-E4 GPO 4
MAXXECUPRO-C4-G4 GPO 26
MAXXECUPRO-C1-B1 GPO 6
ISC valve +14V feed
MAXXECUPRO-C1-C1 GPO 7
MAXXECUPRO-C4-H1 GPO 27
OEM-2
Stock ECU being replaced
AInjector 1
BCooling fan relay
CCondenser fan relay
DInjector 2
EEGR valve
FEGR valve
GInjector 3
HEGR valve
IEGR valve
JInjector 4
KA/C clutch relay
L no data
MFuel pump relay
NVTCS solenoid (intake butterflies)
OFuel pump relay (non-immobiliser)
PISC valve +14V feed
QISC valve low side
RMalfunction indicator lamp (MIL)
GND
GND
MAXXECUPRO-C4-H2 GPO 28
E no data
MAXXECUPRO-C1-A2 IGN 1
G no data
MAXXECUPRO-C1-A1 GPO 5
MAXXECUPRO-C1-A3 IGN 2
MAXXECUPRO-C1-D1 WBO2 Heater-
MAXXECUPRO-C4-H3 GPO 29
L no data
MAXXECUPRO-C4-H4 GPO 30
N no data
MAXXECUPRO-C3-E1 GPO 10/WBO2 2 HTR
R no data
MAXXECUPRO-C1-K4 DIN/VR 2
MAXXECUPRO-C1-K3 DIN/VR 1
MAXXECUPRO-C1-M3 INJ 5
MAXXECUPRO-C1-H4 HOME
W–X no data
MAXXECUPRO-C1-H3 TRIGGER
Z no data
OEM-3
Stock ECU being replaced
APower ground
BPower ground
CPurge solenoid valve
E no data
FIgnition 1 (coils 1+4, wasted spark)
G no data
HMain relay
IIgnition 2 (coils 2+3, wasted spark)
JFront O2 heater
KEVAP leak detection pump
L no data
MAlternator control
N no data
PRear O2 heater
R no data
SImmobiliser
TVehicle speed
UCharge lamp
VCam position (CMP)
W–X no data
YCrank position (CKP)
Z no data
GND
MAXXECUPRO-C3-A3 DIN 6 (SWITCH)
MAXXECUPRO-C3-A4 DIN 7 (SWITCH)
VVT oil-control solenoid +12V feed
MAXXECUPRO-C3-A1 DIN/VR 4
G no data
MAXXECUPRO-C4-D3 DIN 8 (switch)
MAXXECUPRO-C4-D4 DIN 9 (switch)
MAXXECUPRO-C4-E1 DIN 10 (switch)
K no data
5V ref
MAXXECUPRO-C4-F2 Knock 1
MAXXECUPRO-C1-F2 IAT
0V sensor
MAXXECUPRO-C1-F1 CLT
Q no data
MAXXECUPRO-C1-L2 INJ 7
MAXXECUPRO-C3-K3 KEY IN 12V
U no data
MAXXECUPRO-C1-G2 TPS/AIN
MAXXECUPRO-C3-D1 ANALOG IN 6 (0-5V)
MAXXECUPRO-C1-J3 AIN 3 (0-5V)
Y no data
MAXXECUPRO-C3-C3 ANALOG IN 5 (0-5V)
AB no data
MAXXECUPRO-C3-D2 ANALOG IN 7 (0-5V)
MAXXECUPRO-C1-J4 AIN 4 (0-5V)
ECU power +14V (main relay)
MAXXECUPRO-C1-L3 INJ 6
OEM-4
Stock ECU being replaced
APower ground
BBrake switch
CPower steering pressure switch
DVVT oil-control solenoid +12V feed
FA/C request
G no data
HNeutral switch
IClutch switch
JVTCS vacuum switch
K no data
L+5V sensor supply
MKnock sensor
NIntake air temperature (IAT)
OSignal ground
PCoolant temperature (ECT)
Q no data
RVVT oil-control solenoid (low-side control)
SIgnition switch (IG1) sense
U no data
VThrottle position (TPS)
WFront O2 signal
XMass air flow (MAF)
Y no data
AARear O2 signal
AB no data
ADFuel level
AEPressure sensor (Mazda: EGR boost sensor)
AFECU power +14V (main relay)
AHEVAP leak detection pump solenoid valve
MAXXECUPRO
MAXXECUPRO-C1
MAXXECUPRO
A1GPO 5
A2IGN 1
A3IGN 2
A4GPO 8/TACHO
B1GPO 6
B4GPO 1
C1GPO 7
C4GPO 2
D1WBO2 Heater-
D4GPO 3
E4GPO 4
F1CLT
F2IAT
G1+5V sensor supply
G2TPS/AIN
H1Sensor GND
H2Trigger GND
H3TRIGGER
H4HOME
J3AIN 3 (0-5V)
J4AIN 4 (0-5V)
K1INJ 1
K2INJ 2
K3DIN/VR 1
K4DIN/VR 2
L2INJ 7
L3INJ 6
L4Engine GND
M1INJ 3
M2INJ 4
M3INJ 5
M4+12V ECU power supply
OEM-3-H Main relay
OEM-3-F Ignition 1 (coils 1+4, wasted spark)
OEM-3-I Ignition 2 (coils 2+3, wasted spark)
OEM-2-E EGR valve
OEM-2-O Fuel pump relay (non-immobiliser)
OEM-2-B Cooling fan relay
OEM-2-Q ISC valve low side
OEM-2-C Condenser fan relay
OEM-3-J Front O2 heater
OEM-2-K A/C clutch relay
OEM-2-M Fuel pump relay
OEM-4-P Coolant temperature (ECT)
OEM-4-N Intake air temperature (IAT)
5V ref
OEM-4-V Throttle position (TPS)
0V sensor
0V sensor
OEM-3-Y Crank position (CKP)
OEM-3-V Cam position (CMP)
OEM-4-X Mass air flow (MAF)
OEM-4-AE Pressure sensor (Mazda: EGR boost sensor)
OEM-2-A Injector 1
OEM-2-D Injector 2
OEM-3-T Vehicle speed
OEM-3-S Immobiliser
OEM-4-R VVT oil-control solenoid (low-side control)
OEM-4-AH EVAP leak detection pump solenoid valve
GND
OEM-2-G Injector 3
OEM-2-J Injector 4
OEM-3-U Charge lamp
+12V ECU power supply
MAXXECUPRO-C2
MAXXECUPRO
H1Engine ground 3
H2Engine ground 3
H3Engine ground 3
GND
GND
GND
MAXXECUPRO-C3
MAXXECUPRO
A1DIN/VR 4
A3DIN 6 (SWITCH)
A4DIN 7 (SWITCH)
C3ANALOG IN 5 (0-5V)
D1ANALOG IN 6 (0-5V)
D2ANALOG IN 7 (0-5V)
E1GPO 10/WBO2 2 HTR
J2SENSOR GND
J3SENSOR GND
K3KEY IN 12V
L4ENGINE GROUND 2
M412V ECU 2
OEM-4-F A/C request
OEM-4-B Brake switch
OEM-4-C Power steering pressure switch
OEM-4-AA Rear O2 signal
OEM-4-W Front O2 signal
OEM-4-AD Fuel level
OEM-3-P Rear O2 heater
0V sensor
0V sensor
OEM-4-S Ignition switch (IG1) sense
GND
12V ECU 2
MAXXECUPRO-C4
MAXXECUPRO
D3DIN 8 (switch)
D4DIN 9 (switch)
E1DIN 10 (switch)
F2Knock 1
G1GPO 23
G2GPO 24
G3GPO 25
G4GPO 26
H1GPO 27
H2GPO 28
H3GPO 29
H4GPO 30
OEM-4-H Neutral switch
OEM-4-I Clutch switch
OEM-4-J VTCS vacuum switch
OEM-4-M Knock sensor
OEM-2-F EGR valve
OEM-2-H EGR valve
OEM-2-I EGR valve
OEM-2-N VTCS solenoid (intake butterflies)
OEM-2-R Malfunction indicator lamp (MIL)
OEM-3-C Purge solenoid valve
OEM-3-K EVAP leak detection pump
OEM-3-M Alternator control
SP-GND · 9 pins
SP-0V · 6 pins
SP-14V · 6 pins
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.