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
KV12-C-29 Digital Input 3
GND
0V sensor
KV12-A-1 Injection Channel 9
KV12-B-10 Auxiliary Output 1
KV12-B-15 Auxiliary Output 6
KV12-B-6 Injection Channel 6
KV12-B-5 Injection Channel 5
KV12-B-4 Injection Channel 4
KV12-B-3 Injection Channel 3
KV12-B-2 Injection Channel 2
KV12-B-1 Injection Channel 1
KV12-C-28 Digital Input 2
KV12-C-8 Analog Input Channel 7
KV12-D-6 Sync Sensor +
KV12-D-4 Crank Index Sensor +
KV12-D-19 Analog Output (0.0 - 5.0V)
KV12-B-12 Auxiliary Output 3
KV12-B-11 Auxiliary Output 2
KV12-B-17 Auxiliary Output 8
KV12-B-16 Auxiliary Output 7
KV12-B-7 Injection Channel 7
5V ref
KV12-C-3 Analog Input Channel 2
KV12-C-4 Analog Input Channel 3
KV12-C-9 Analog Input Channel 8
KV12-C-5 Analog Input Channel 4
KV12-C-6 Analog Input Channel 5
KV12-D-17 Knock 2 +
KV12-D-11 Knock 1 +
KV12-B-26 Ignition Channel 1
KV12-C-31 Digital Input 5
KV12-C-2 Analog Input Channel 1
KV12-C-15 Analog Input Channel 14
0V sensor
GND
KV12-B-8 Injection Channel 8
KV12-C-16 Analog Input Channel 15
KV12-C-24 Analog Input Channel 16
GND
GND
OEM-E9
Stock ECU being replaced
3No.2 speed sensor return (SP2-)
4Power ground (E11)
7Distributor ground (G-)
8A/T lock-up solenoid (S3)
9A/T shift solenoid 2 (S2)
10A/T shift solenoid 1 (S1)
15Injector 6 (#60, rear)
16Injector 5 (#50)
17Injector 4 (#40)
18Injector 3 (#30)
19Injector 2 (#20)
20Injector 1 (#10, front)
23No.2 speed sensor (SP2+)
24A/T oil temperature (OIL)
26Cam position 1 (G1)
27Crank position (NE)
29Voltage feedback 1 (VF1)
32ISC stepper coil 4 (ISC4)
33ISC stepper coil 3 (ISC3)
34ISC stepper coil 2 (ISC2)
35ISC stepper coil 1 (ISC1)
39ACIS intake VSV
41Sensor supply +5V (VCC)
43Throttle position (VTA1)
44Coolant temperature (THW)
45Intake air temperature (THA)
47O2 sensor 2 (OX2, rear bank)
48O2 sensor 1 (OX1, front bank)
49Knock sensor 2 (KNK2, rear)
50Knock sensor 1 (KNK1, front)
57Igniter trigger (IGT)
58Igniter verification (IGF)
62Manifold pressure (PIM)
64TPS idle switch (IDL1)
65Sensor ground (E2)
69Power ground (E1)
74EVAP purge VSV
76Neutral/park switch (NSW)
77Starter signal (STA)
79Power ground (E02)
80Power ground (E01)
KV12-D-15 Ignition Switch Input
KV12-C-27 Digital Input 1
KV12-C-11 Analog Input Channel 10
KV12-C-14 Analog Input Channel 13
KV12-A-10 Lambda 1 Heater -
KV12-A-11 Lambda 2 Heater -
KV12-C-19 Digital Input 10
KV12-C-20 Digital Input 11
KV12-C-32 Digital Input 6
KV12-C-21 Digital Input 12
KV12-C-22 Digital Input 13
KV12-C-23 Digital Input 14
KV12-C-34 Digital Input 8
KV12-C-33 Digital Input 7
KV12-C-30 Digital Input 4
KV12-B-13 Auxiliary Output 4
KV12-D-9 EFI Relay Output (Low Side 200mA)
KV12-B-14 Auxiliary Output 5
KV12-C-10 Analog Input Channel 9
KV12-C-18 Digital Input 9
KV12-C-7 Analog Input Channel 6
EFI main relay power (+B)
EFI main relay power (+B1)
KV12-C-12 Analog Input Channel 11
KV12-C-13 Analog Input Channel 12
OEM-E10
Stock ECU being replaced
1Ignition switch (IGSW)
2No.1 speed sensor (SP1)
3A/T kickdown switch (KD)
4Stop light switch (STP)
5Cat-temp warning light (EGW)
6Check-engine light (W)
9A/T 2nd-gear indicator (2)
10A/T low-gear indicator (L)
12A/T overdrive disable 1 (OD1)
15Electrical load sense (ELS)
17Diagnostic test terminal (TT)
18A/T manual mode select (M)
19Diagnostic test 2 (TE2)
20Diagnostic test 1 (TE1)
21Fuel pump diagnostic (DI)
22Fuel pump control (FPC)
23A/C clutch relay (ACMG)
24EFI main relay control (M-REL)
25A/T manual indicator (MI)
28A/T overdrive disable 2 (OD2)
29Cat temperature sensor (CCO)
31EFI main relay power (+B)
32EFI main relay power (+B1)
34A/C request (A/C)
35Power steering switch (PS)
KV12
KV12-A
KV12
1Injection Channel 9
10Lambda 1 Heater -
11Lambda 2 Heater -
19ECU Ground
OEM-E9-8 A/T lock-up solenoid (S3)
OEM-E10-5 Cat-temp warning light (EGW)
OEM-E10-6 Check-engine light (W)
GND
KV12-B
KV12
1Injection Channel 1
2Injection Channel 2
3Injection Channel 3
4Injection Channel 4
5Injection Channel 5
6Injection Channel 6
7Injection Channel 7
8Injection Channel 8
9ECU Ground
10Auxiliary Output 1
11Auxiliary Output 2
12Auxiliary Output 3
13Auxiliary Output 4
14Auxiliary Output 5
15Auxiliary Output 6
16Auxiliary Output 7
17Auxiliary Output 8
26Ignition Channel 1
34ECU Ground
OEM-E9-20 Injector 1 (#10, front)
OEM-E9-19 Injector 2 (#20)
OEM-E9-18 Injector 3 (#30)
OEM-E9-17 Injector 4 (#40)
OEM-E9-16 Injector 5 (#50)
OEM-E9-15 Injector 6 (#60, rear)
OEM-E9-39 ACIS intake VSV
OEM-E9-74 EVAP purge VSV
GND
OEM-E9-9 A/T shift solenoid 2 (S2)
OEM-E9-33 ISC stepper coil 3 (ISC3)
OEM-E9-32 ISC stepper coil 4 (ISC4)
OEM-E10-22 Fuel pump control (FPC)
OEM-E10-24 EFI main relay control (M-REL)
OEM-E9-10 A/T shift solenoid 1 (S1)
OEM-E9-35 ISC stepper coil 1 (ISC1)
OEM-E9-34 ISC stepper coil 2 (ISC2)
OEM-E9-57 Igniter trigger (IGT)
GND
KV12-C
KV12
1ECU Ground
2Analog Input Channel 1
3Analog Input Channel 2
4Analog Input Channel 3
5Analog Input Channel 4
6Analog Input Channel 5
7Analog Input Channel 6
8Analog Input Channel 7
9Analog Input Channel 8
10Analog Input Channel 9
11Analog Input Channel 10
12Analog Input Channel 11
13Analog Input Channel 12
14Analog Input Channel 13
15Analog Input Channel 14
16Analog Input Channel 15
17Analog Sensor 0V Reference
18Digital Input 9
19Digital Input 10
20Digital Input 11
21Digital Input 12
22Digital Input 13
23Digital Input 14
24Analog Input Channel 16
25Analog Sensor 0V Reference
26ECU Ground
27Digital Input 1
28Digital Input 2
29Digital Input 3
30Digital Input 4
31Digital Input 5
32Digital Input 6
33Digital Input 7
34Digital Input 8
GND
OEM-E9-62 Manifold pressure (PIM)
OEM-E9-43 Throttle position (VTA1)
OEM-E9-44 Coolant temperature (THW)
OEM-E9-47 O2 sensor 2 (OX2, rear bank)
OEM-E9-48 O2 sensor 1 (OX1, front bank)
OEM-E10-29 Cat temperature sensor (CCO)
OEM-E9-24 A/T oil temperature (OIL)
OEM-E9-45 Intake air temperature (THA)
OEM-E10-25 A/T manual indicator (MI)
OEM-E10-3 A/T kickdown switch (KD)
OEM-E10-34 A/C request (A/C)
OEM-E10-35 Power steering switch (PS)
OEM-E10-4 Stop light switch (STP)
OEM-E9-64 TPS idle switch (IDL1)
OEM-E9-76 Neutral/park switch (NSW)
0V sensor
OEM-E10-28 A/T overdrive disable 2 (OD2)
OEM-E10-9 A/T 2nd-gear indicator (2)
OEM-E10-10 A/T low-gear indicator (L)
OEM-E10-15 Electrical load sense (ELS)
OEM-E10-17 Diagnostic test terminal (TT)
OEM-E10-18 A/T manual mode select (M)
OEM-E9-77 Starter signal (STA)
0V sensor
GND
OEM-E10-2 No.1 speed sensor (SP1)
OEM-E9-23 No.2 speed sensor (SP2+)
OEM-E9-3 No.2 speed sensor return (SP2-)
OEM-E10-21 Fuel pump diagnostic (DI)
OEM-E9-58 Igniter verification (IGF)
OEM-E10-12 A/T overdrive disable 1 (OD1)
OEM-E10-20 Diagnostic test 1 (TE1)
OEM-E10-19 Diagnostic test 2 (TE2)
KV12-D
KV12
1ECU 14V Supply
2Auxiliary Output 13-16 14V Supply
4Crank Index Sensor +
5Crank Index Sensor -
6Sync Sensor +
7Sync Sensor -
9EFI Relay Output (Low Side 200mA)
11Knock 1 +
15Ignition Switch Input
17Knock 2 +
19Analog Output (0.0 - 5.0V)
20Auxiliary Output 9-12 14V Supply
21Sensor Supply Vref1: 5.0V
ECU 14V Supply
Auxiliary Output 13-16 14V Supply
OEM-E9-27 Crank position (NE)
SP-0V · 2 pins
OEM-E9-26 Cam position 1 (G1)
SP-0V · 2 pins
OEM-E10-23 A/C clutch relay (ACMG)
OEM-E9-50 Knock sensor 1 (KNK1, front)
OEM-E10-1 Ignition switch (IGSW)
OEM-E9-49 Knock sensor 2 (KNK2, rear)
OEM-E9-29 Voltage feedback 1 (VF1)
Auxiliary Output 9-12 14V Supply
5V ref
SP-GND · 10 pins
SP-0V · 7 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.
78 / 78 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
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