100%
Stock ECU being replaced
SL4-A-11 Auxiliary output 2
Ignition power 2 (IGP2)
Ignition power 1 (IGP1)
GND
GND
SL4-B-5 Crank index sensor +
SL4-B-16 Knock 1 +
0V sensor
0V sensor
SL4-A-12 Auxiliary output 3
SL4-B-12 Analog input 2
SL4-A-20 Digital input 1
SL4-B-11 Analog input 1
5V ref
GND
GND
SL4-B-7 Sync sensor +
SL4-A-29 Ignition channel 4
SL4-A-28 Ignition channel 3
SL4-A-27 Ignition channel 2
SL4-A-26 Ignition channel 1
OEM-A
Stock ECU being replaced
1A/F sensor heater control (AFSHTC)
2Ignition power 2 (IGP2)
3Ignition power 1 (IGP1)
4Power ground 2 (PG2)
5Power ground 1 (PG1)
7Crank position sensor (CKP)
9Knock sensor (KS)
10Sensor ground 2 (SG2)
11Sensor ground 1 (SG1)
12Idle air control valve (IACV)
15Throttle position sensor (TPS)
18Vehicle speed sensor (VSS, M/T)
19Manifold absolute pressure (MAP)
20Sensor 5V supply 2 (VCC2)
23Logic ground 2 (LG2)
24Logic ground 1 (LG1)
25Camshaft position A (CMP A)
27Ignition coil 4 (IGPLS4)
28Ignition coil 3 (IGPLS3)
29Ignition coil 2 (IGPLS2)
30Ignition coil 1 (IGPLS1)
SL4-A-18 Auxiliary output 9
SL4-A-4 Injection channel 4
SL4-A-3 Injection channel 3
SL4-A-2 Injection channel 2
SL4-A-1 Injection channel 1
SL4-A-14 Auxiliary output 5
SL4-B-14 Analog input 4
SL4-A-22 Digital input 3
SL4-A-21 Digital input 2
SL4-B-19 Analog input 6
SL4-A-13 Auxiliary output 4
SL4-B-15 Analog input 5
SL4-A-19 Auxiliary output 10
OEM-B
Stock ECU being replaced
1VTC oil control solenoid (+)
2Injector 4 (INJ4)
3Injector 3 (INJ3)
4Injector 2 (INJ2)
5Injector 1 (INJ1)
6Radiator fan control (FANC)
8Coolant temp sensor (ECT)
9VTEC oil pressure switch (VTPSW)
10Alternator L signal (ALTL)
13Alternator FR signal (ALTF)
15VTEC solenoid (VTS)
17Intake air temp sensor (IAT)
18Alternator control (ALTC)
SL4-A-15 Auxiliary output 6
SL4-B-13 Analog input 3
GND
0V sensor
SL4-A-10 Auxiliary output 1
SL4-B-3 EFI relay output (low side, 200 mA)
SL4-A-17 Auxiliary output 8
SL4-B-4 Ignition switch input
SL4-B-20 Analog input 7 (switchable 1k pull-up)
SL4-B-21 Analog input 8 (switchable 1k pull-up)
SL4-A-23 Digital input 4
SL4-A-16 Auxiliary output 7
SL4-A-24 Digital input 5
SL4-A-25 Digital input 6
OEM-E
Stock ECU being replaced
1Immobilizer fuel pump relay (IMO FPR)
2Secondary heated O2 sensor (SHO2S)
3Logic ground 3 (LG3)
4Sensor ground 3 (SG3)
6Secondary O2 heater control (SO2SHTC)
7Main relay control (MRLY)
8A/F sensor heater relay control (AFSHTCR)
9Ignition switch signal (IG1)
14Fuel tank pressure sensor (FTP)
15Electrical load detector (ELD)
16Power steering pressure switch (PSPSW)
18A/C clutch relay (ACC)
20Brake switch / interlock (2WBS)
22Brake switch (BKSW)
SL4
SL4-A
SL4
1Injection channel 1
2Injection channel 2
3Injection channel 3
4Injection channel 4
5–8 no data
10Auxiliary output 1
11Auxiliary output 2
12Auxiliary output 3
13Auxiliary output 4
14Auxiliary output 5
15Auxiliary output 6
16Auxiliary output 7
17Auxiliary output 8
18Auxiliary output 9
19Auxiliary output 10
20Digital input 1
21Digital input 2
22Digital input 3
23Digital input 4
24Digital input 5
25Digital input 6
26Ignition channel 1
27Ignition channel 2
28Ignition channel 3
29Ignition channel 4
30–33 no data
34Aux 9–10 14V supply
OEM-B-5 Injector 1 (INJ1)
OEM-B-4 Injector 2 (INJ2)
OEM-B-3 Injector 3 (INJ3)
OEM-B-2 Injector 4 (INJ4)
5–8 no data
OEM-E-6 Secondary O2 heater control (SO2SHTC)
OEM-A-1 A/F sensor heater control (AFSHTC)
OEM-A-12 Idle air control valve (IACV)
OEM-B-15 VTEC solenoid (VTS)
OEM-B-6 Radiator fan control (FANC)
OEM-E-1 Immobilizer fuel pump relay (IMO FPR)
OEM-E-18 A/C clutch relay (ACC)
OEM-E-8 A/F sensor heater relay control (AFSHTCR)
OEM-B-1 VTC oil control solenoid (+)
OEM-B-18 Alternator control (ALTC)
OEM-A-18 Vehicle speed sensor (VSS, M/T)
OEM-B-10 Alternator L signal (ALTL)
OEM-B-9 VTEC oil pressure switch (VTPSW)
OEM-E-16 Power steering pressure switch (PSPSW)
OEM-E-20 Brake switch / interlock (2WBS)
OEM-E-22 Brake switch (BKSW)
OEM-A-30 Ignition coil 1 (IGPLS1)
OEM-A-29 Ignition coil 2 (IGPLS2)
OEM-A-28 Ignition coil 3 (IGPLS3)
OEM-A-27 Ignition coil 4 (IGPLS4)
30–33 no data
Aux 9–10 14V supply
SL4-B
SL4
1ECU 14V supply
2Sensor supply Vref1 5.0V
3EFI relay output (low side, 200 mA)
4Ignition switch input
5Crank index sensor +
6Crank index sensor −
7Sync sensor +
8Sync sensor −
10Analog sensor 0V reference
11Analog input 1
12Analog input 2
13Analog input 3
14Analog input 4
15Analog input 5
16Knock 1 +
18ECU ground
19Analog input 6
20Analog input 7 (switchable 1k pull-up)
21Analog input 8 (switchable 1k pull-up)
26ECU ground
29–30 no data
ECU 14V supply
5V ref
OEM-E-7 Main relay control (MRLY)
OEM-E-9 Ignition switch signal (IG1)
OEM-A-7 Crank position sensor (CKP)
SP-0V · 3 pins
OEM-A-25 Camshaft position A (CMP A)
SP-0V · 3 pins
0V sensor
OEM-A-19 Manifold absolute pressure (MAP)
OEM-A-15 Throttle position sensor (TPS)
OEM-E-2 Secondary heated O2 sensor (SHO2S)
OEM-B-8 Coolant temp sensor (ECT)
OEM-B-17 Intake air temp sensor (IAT)
OEM-A-9 Knock sensor (KS)
GND
OEM-B-13 Alternator FR signal (ALTF)
OEM-E-14 Fuel tank pressure sensor (FTP)
OEM-E-15 Electrical load detector (ELD)
GND
29–30 no data
SP-14V · 5 pins
SP-GND · 8 pins
SP-0V · 7 pins
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