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Wiring & Pinouts guides and mods

450 ECU Pin Out

The ECU (or MEG) controls all of the engine parameters ensuring that it is running as best as it possibly can.

Modification Details




The ECU is located on the side of the airbox, this can be seen to the left as you look into the engine bay.
This is the unit that stores the remap that you may have put on.

It is worth noting that the engine map (remap) is stored on a rewritable chip,
even if the battery is disconnected, you will not lose the remap.

This Page shows you the pin out table for the 600cc fortwo and 700cc fortwo.

700cc Fortwo ECU

Pin Number Wire Colour Connection
1 Blue Transmission motor
2 N/C N/C
3 Green Transmission motor
4 Yellow Clutch motor
5 Yellow Clutch motor
6 Yellow Cylinder 3 coil
7 N/C N/C
8 Yellow Crankshaft RPM sensor
9 Yellow Crankshaft RPM sensor
10 Black Knock sensor
11 Red Transmission RPM sensor
12 N/C N/C
13 Yellow Oil pressure switch
14 Yellow Transmission motor
15 Yellow Transmission motor
16 Yellow Coolant temperature sensor
17 Yellow Air intake temperature sensor
18 Yellow O2 sensor, upstream
19 Yellow Gear position sensor
20 Yellow Throttle valve actuator
21 N/C N/C
22 N/C N/C
23 Yellow Clutch motor
24 Yellow Clutch motor
25 Green Cylinder 3 coil
26 N/C N/C
27 N/C N/C
28 N/C N/C
29 N/C N/C
30 White Transmission RPM sensor
31 Black Screening cable
32 White Knock sensor
33 Green Transmission motor
34 N/C N/C
35 N/C N/C
36 Green O2 sensor, downstream
37 Green Throttle valve actuator
38 Green Throttle valve actuator
39 Green Intake manifold pressure sensor
40 N/C N/C
41 N/C N/C
42 N/C N/C
43 Green Clutch motor
44 White Cylinder 2 coil
45 White Cylinder 2 coil
46 N/C N/C
47 White Alternator
48 White EGR valve
49 N/C N/C
50 N/C N/C
51 White Transmission motor
52 White Coolant temperature sensor
53 White Air intake temperature sensor
54 White O2 sensor, downstream
55 White O2 sensor, upstream
56 White Throttle valve actuator
57 White Intake manifold pressure sensor
58 N/C N/C
59 N/C N/C
60 White Gear position sensor
61 N/C N/C
62 N/C N/C
63 Blue Cylinder 1 coil
64 Blue Cylinder 1 coil
65 N/C N/C
66 Blue O2 sensor, downstream
67 Blue O2 sensor, upstream
68 Blue Wastegate valve
69 N/C N/C
70 Blue Injector 3
71 Red Injector 2
72 Blue Injector 1
73 Blue Throttle valve actuator
74 Blue Throttle valve actuator
75 Blue Clutch motor
76 Blue Intake manifold pressure sensor
77 N/C N/C
78 N/C N/C
79 Blue Gear position sensor
80 N/C N/C
81 N/C N/C
82 Brown/Red Steering assist, CAN high
83 White/Black Steering assist, CAN low
84 Grey/Blue Gear selector pin 5
85 White/Grey Gear selector pin 3
86 N/C N/C
87 Blue/Grey Gear selector pin 8
88 Brown/Green SAM unit connection 2 pin 1
89 Pink Charcoal filter shut off
90 Blue/White Accelerator pin 2
91 Violet Accelerator pin 1
92 Violet/Blue Stop lamp switch pin 1
93 Blue/Green Gear selector pin 9
94 Yellow/White Fuel level sensor
95 Blue/Red Gear selector pin 4
96 Brown Gear selector pin 8
97 Black/Pink SAM unit connection 5 pin 11
98 Green Accelerator pin 4
99 Black Accelerator pin 5
100 Yellow Accelerator pin 6
101 Grey Fuel level sensor
102 Grey/Yellow OBD pin 3
103 Grey/Green SAM unit connection 3 pin 2
104 N/C N/C
105 N/C N/C
106 Red Evap temperature sensor pin 2
107 Brown/Yellow Evap temperature sensor pin 1
108 N/C N/C
109 Yellow/Blue Accelerator pin 3
110 White OBD pin 7
111 Blue SAM unit connection 2 pin 7
112 N/C N/C
113 N/C N/C
114 Red/White SAM unit connection 3 pin 12
115 Pink/Blue ECU pin 117
116 Brown Earth
117 Black/White SAM unit connection 4 pin 2
118 Brown Earth
119 Black/Yellow SAM unit connection 5 pin 12
120 Brown Earth
121 Brown Earth

 
600cc Fortwo ECU

Pin Number Wire Colour Connection
1 Blue Gear Change Motor Pin 6
2 N/C  
3 Green Gear Change Motor Pin 1
4 Yellow Clutch Actuator Motor Pin 3
5 Yellow Clutch Actuator Motor Pin 6
6 Yellow Coil Pack 3 Pin 4
7 N/C  
8 Yellow Crankshaft RPM Sensor
9 Yellow Crankshaft RPM Sensor
10 Black Knock Sensor
11 Red Transmission RPM Sensor
12 N/C  
13 Yellow Oil Pressure Switch
14 Yellow Gear Change Motor Pin 3
15 Yellow Gear Change Motor Pin 5
16 N/C  
17 Yellow Coolant Temperature Sensor
18 Yellow O2 Up Pin 4
19 Yellow Gear Position Sensor
20 Yellow Throttle Body Pin 6
21 N/C  
22 N/C  
23 Yellow Clutch Actuator Motor Pin 4
24 Yellow Clutch Actuator Motor Pin 2
25 Green Coil Pack 3 Pin 3
26 N/C  
27 N/C  
28 N/C  
29 N/C  
30 White Transmission RPM Sensor
31 Black Transmission RPM Sensor Shielding
32 White Knock Sensor
33 Green Gear Change Motor Pin 2
34 N/C  
35 N/C  
36 Green O2 Down Pin 4
37 Green Throttle Body Pin 5
38 Green Throttle Body Pin 3
39 Green MAP Sensor
40 N/C  
41 Green G Sensor Pin 2
42 Yellow G Sensor Pin 1
43 Green Clutch Actuator Motor Pin 1
44 White Coil Pack 2 Pin 3
45 White Coil Pack 2 Pin 4
46 N/C  
47 White Alternator PH-IN
48 White EGR Valve
49 N/C  
50 N/C  
51 White Gear Change Motor Pin 4
52 White Coolant Temperature Sensor
53 N/C  
54 White O2 Down Pin 3
55 White O2 Up Pin 3
56 White Throttle Body Pin 2
57 White MAP Sensor
58 N/C  
59 N/C  
60 White Gear Position Sensor
61 N/C  
62 N/C  
63 Blue Coil Pack 1 Pin 4
64 Blue Coil Pack 1 Pin 3
65 N/C  
66 Blue O2 Down Pin 2
67 Blue O2 Up Pin 2
68 Blue Wastegate Valve
69 N/C  
70 Blue Injector 3
71 Red Injector 2
72 Blue Injector 1
73 Blue Throttle Body Pin 4
74 Blue Throttle Body Pin 1
75 Blue Clutch Actuator Motor Pin 5
76 Blue MAP Sensor
77 N/C  
78 N/C  
79 Blue Gear Position Sensor
80 Blue G Sensor Pin 3
81 N/C  
82 Brown/Red ZEE Plug B Pin 31 (CAN High)
83 White/Black ZEE Plug B Pin 35 (CAN low)
84 Grey/Blue SE Drive Pin 5
85 White/Grey SE Drive Pin 3
86 N/C  
87 Blue/Grey SE Drive Pin 8 (gear down)
88 Brown/Green  
89 Yellow/White Charcoal Filter
90 Blue/White Accelerator Pedal Pin 2
91 Violet Accelerator Pedal Pin 1
92 Violet/Blue Brake Light Switch
93 Blue/Green SE Drive Pin 9
94 Yellow/White Fuel Level Sensor
95 Blue/Red SE Drive Pin 4 (gear up)
96 Brown SE Drive Pin 10
97 Black/Pink Rear Fuse & Relay Plug 1 Pin 1
98 Green Accelerator Pedal Pin 4
99 Grey/Green Accelerator Pedal Pin 5
100 Grey/Yellow Accelerator Pedal Pin 6
101 Grey Fuel Level Sensor
102 Grey/Yellow OBD Port
103 Grey/Green Zee Fuse 26
104 N/C  
105 White Yellow Rear Fuse & Relay Plug 2 Pin 2
106 Red AC Temperature Sensor
107 Grey/Yellow AC Temperature Sensor
108 N/C  
109 Yellow/Blue Accelerator Pedal Pin 3
110 White OBD Port (K Line)
111 Blue Rear Fuse & Relay Plug 1 Pin 5
112 Yellow Rear Fuse & Relay Plug 2 Pin 5
113 Green/Blue Rear Fuse & Relay Plug 2 Pin 3
114 Red/White Zee Fuse 20
115 Pink/Blue Rear Fuse & Relay Plug 1 Pin 7
116 Brown Earth
117 Black/White Rear Fuse & Relay Plug 1 Pin 6
118 Brown Earth
119 Black/Yellow Rear Fuse & Relay Plug 2 Pin 8
120 Brown Earth
121 Brown Earth


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