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
M170-A-29 Knock Input 1
Ignition power 2
Ignition power 1
GND
GND
M170-A-56 Universal Digital Input 2
M170-A-49 Universal Digital Input 1
GND
GND
11–12 no data
M170-A-10 Low Side Ignition 4
M170-A-4 Low Side Ignition 3
M170-A-5 Low Side Ignition 2
M170-A-1 Low Side Ignition 1
17 no data
M170-A-46 Universal Digital Input 3
19 no data
5V ref
22 no data
0V sensor
27 no data
29 no data
M170-A-26 Analogue Voltage Input 1
OEM-A
Stock ECU being replaced
1Knock sensor
2Ignition power 2
3Ignition power 1
4Power ground 2
5Power ground 1
6Cam position sensor (T2)
7Crank position sensor (T1)
8Logic ground 2
9Logic ground 1
11–12 no data
13Ignition coil 4
14Ignition coil 3
15Ignition coil 2
16Ignition coil 1
17 no data
18Vehicle speed sensor
19 no data
21Sensor voltage 1
22 no data
24Sensor ground 1
27 no data
29 no data
30MAP sensor
1 no data
M170-A-51 Low Side Injector 2
M170-A-50 Peak Hold Injector 2
M170-A-43 Low Side Injector 1
M170-A-33 Peak Hold Injector 1
RLY1-R-OUT Relay contact output (switched +12 V to load)
7 no data
M170-A-28 Analogue Temperature Input 1
9 no data
M170-A-45 Universal Digital Input 4
12 no data
M170-A-12 Analogue Voltage Input 5
14 no data
16 no data
M170-A-30 Analogue Temperature Input 3
22–24 no data
OEM-B
Stock ECU being replaced
1 no data
2Injector 4
3Injector 3
4Injector 2
5Injector 1
6VTEC solenoid
7 no data
8Coolant temp sensor
9 no data
11VTEC oil pressure switch
12 no data
13Alternator FR signal
14 no data
16 no data
17Intake air temp sensor
22–24 no data
M170-A-52 Universal Digital Input 5
2–3 no data
M170-A-53 Universal Digital Input 6
5–6 no data
M170-A-13 Universal Digital Input 7
M170-A-22 Universal Digital Input 8
10–14 no data
16–17 no data
OEM-D
Stock ECU being replaced
1Cruise set switch
2–3 no data
4Cruise main switch
5–6 no data
7Cruise resume switch
8Brake pedal position switch
10–14 no data
16–17 no data
M170-A-38 Analogue Temperature Input 2
2 no data
GND
6 no data
M170-A-66 Peak Hold Injector 4
10 no data
M170-A-40 CAN Bus 1 High
M170-A-57 Peak Hold Injector 7
M170-A-36 Analogue Voltage Input 6
M170-A-35 Analogue Voltage Input 7
M170-A-44 Analogue Voltage Input 8
M170-A-63 Peak Hold Injector 3
M170-A-62 Peak Hold Injector 8
M170-A-7 Analogue Voltage Input 4
23 no data
M170-A-31 CAN Bus 1 Low
31 no data
OEM-E
Stock ECU being replaced
1Coolant temp sensor 2
2 no data
3Logic ground 3
6 no data
7Main relay control
10 no data
11CAN H
12Radiator fan control
14Fuel tank pressure sensor
15Electrical load detector
16Power steering load detector
17Fuel pump relay
18A/C clutch relay
20Secondary O2 sensor
23 no data
24CAN L
31 no data
M170
M170-A
M170
1Low Side Ignition 1
4Low Side Ignition 3
5Low Side Ignition 2
6Analogue Voltage Input 3
7Analogue Voltage Input 4
10Low Side Ignition 4
11Sensor 0V A
12Analogue Voltage Input 5
13Universal Digital Input 7
14Battery Negative 1
15Battery Negative 2
16Sensor 5.0V A
19Battery Negative 3
20Battery Negative 4
21Battery Negative 5
22Universal Digital Input 8
23Battery Positive
24Peak Hold Injector 5
26Analogue Voltage Input 1
27Sensor 0V B
28Analogue Temperature Input 1
29Knock Input 1
30Analogue Temperature Input 3
31CAN Bus 1 Low
32Battery Positive
33Peak Hold Injector 1
34Sensor 5.0V B
35Analogue Voltage Input 7
36Analogue Voltage Input 6
38Analogue Temperature Input 2
40CAN Bus 1 High
41Battery Positive
43Low Side Injector 1
44Analogue Voltage Input 8
45Universal Digital Input 4
46Universal Digital Input 3
49Universal Digital Input 1
50Peak Hold Injector 2
51Low Side Injector 2
52Universal Digital Input 5
53Universal Digital Input 6
56Universal Digital Input 2
57Peak Hold Injector 7
62Peak Hold Injector 8
63Peak Hold Injector 3
66Peak Hold Injector 4
OEM-A-16 Ignition coil 1
OEM-A-14 Ignition coil 3
OEM-A-15 Ignition coil 2
TPS-J-SIG Throttle position signal
OEM-E-20 Secondary O2 sensor
OEM-A-13 Ignition coil 4
0V sensor
OEM-B-13 Alternator FR signal
OEM-D-7 Cruise resume switch
GND
GND
5V ref
GND
GND
GND
OEM-D-8 Brake pedal position switch
Battery Positive
RLY1-R-COIL- Relay coil negative (ECU low-side driver)
OEM-A-30 MAP sensor
0V sensor
OEM-B-8 Coolant temp sensor
OEM-A-1 Knock sensor
OEM-B-17 Intake air temp sensor
OEM-E-24 CAN L
Battery Positive
OEM-B-5 Injector 1
5V ref
OEM-E-15 Electrical load detector
OEM-E-14 Fuel tank pressure sensor
OEM-E-1 Coolant temp sensor 2
OEM-E-11 CAN H
Battery Positive
OEM-B-4 Injector 2
OEM-E-16 Power steering load detector
OEM-B-11 VTEC oil pressure switch
OEM-A-18 Vehicle speed sensor
OEM-A-7 Crank position sensor (T1)
OEM-B-3 Injector 3
OEM-B-2 Injector 4
OEM-D-1 Cruise set switch
OEM-D-4 Cruise main switch
OEM-A-6 Cam position sensor (T2)
OEM-E-12 Radiator fan control
OEM-E-18 A/C clutch relay
OEM-E-17 Fuel pump relay
OEM-E-7 Main relay control
RLY1
RLY1-R
RLY1
INRelay contact input (switched +12 V)
OUTRelay contact output (switched +12 V to load)
COIL+Relay coil positive (switched +12 V)
COIL-Relay coil negative (ECU low-side driver)
SP-14V · 5 pins
OEM-B-6 VTEC solenoid
Relay coil positive (switched +12 V)
M170-A-24 Peak Hold Injector 5
TPS
TPS-J
TPS
GNDSensor ground
SIGThrottle position signal
VCC5V supply in
0V sensor
M170-A-6 Analogue Voltage Input 3
5V supply in
SP-5V1 · 2 pins
SP-GND · 11 pins
SP-14V · 8 pins
SP-0V · 5 pins
SP-5V · 4 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.
60 / 60 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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