Note: Standard battery voltage is 12 V.
Female connector on harness side
| contact No | Wire color | Contact name | Description | Signal |
| 1*7 | Green with yellow stripe | IMO FPR (immobilizer fuel pump relay) | Main relay 2 PGM-FI is activated | 0 V for 2 seconds after turning the ignition switch to the ON (II) position, then battery voltage. |
| 2*6 | White with red stripe | SHO2S (secondary Heated Oxygen Sensor, Sensor 2) | Secondary HO2S (Sensor 2) signal is detected | The throttle valve is fully open, the engine is fully warmed up and running at idle speed: above 0.6 V. Throttle valve closes quickly: below 0.4 V. |
| 3 | Brown with yellow stripe | LG3 (logic circuit ground) | "Ground" for ECM/PCM control circuit | Constantly less than 1.0 V. |
| 4 | Pink | SG3 (sensor ground) | "Mass" of the sensor | Constantly less than 1.0 V. |
| 5 | Yellow with blue stripe | VCC3 (voltage on the sensor) | Voltage is applied to the sensor | Ignition key in position ON (II): about 5 V. Ignition key in OFF position near 0 V. |
| b*6 | Black with white stripe | SO2SHTC (Control of the heating element of the secondary heated oxygen sensor) | The heating element of the secondary HO2S sensor is turned on | Ignition switch in position ON (II): battery voltage. The engine is fully warmed up and running: Depending on the mode. |
| 7 | Red with yellow stripe | MRLY (pGM-FI main relay) | Main Relay 1 PGM-FI Power Supply for DTC Memory is On | Ignition switch in position ON (II): battery voltage. Ignition key in OFF position near 0 V. |
| 9 | Yellow with black stripe | IG1 (ignition signal) | Ignition signal detected | Ignition switch in position ON (II): battery voltage. Ignition key in OFF position about 0 V |
| 10*8 | Green with yellow stripe | FPR (fuel pump relay) | Main relay 2 PGM-FI is activated | 0 V for 2 seconds after turning the ignition switch to the ON (II) position, then the battery voltage |
| 13*1 | White with blue stripe | ILU (lock control unit) | The lock control unit is switched on | Ignition key in position ON (II) and brake pedal pressed: approx. 8.5 V. |
| 15*4 | Green with red stripe | ELD (electrical load detector) | ELD signal is activated | Ignition key in position ON (II): about 0.1-4.8 V (depending on the electrical load). |
| 15*9 | Orange | (MA (Idle speed mixture regulator.) | IMA signal detected | Ignition key in position ON (II): about 0.5-4.5 V (depending on the composition of the mixture). |
| 16 | Light green with black stripe | PSPSW (Power Steering Pump Oil Pressure Sensor Signal) | PSP sensor signal is detected | At idle speed, steering wheel straight ahead: about 0 V. At idle speed, steering wheel turned all the way: battery voltage |
| 18 | Red | ACC (Air Conditioning Compressor Clutch Relay) | The air conditioning compressor clutch relay turns on | Compressor on: about 0 V. Compressor off: battery voltage |
| 22 | White with black stripe | BKSW (Brake pedal position switch) | The signal from the VRR switch is detected | Brake pedal released: about 0 V. Brake pedal pressed: battery voltage |
| 23 | Blue | Channel K | Sends a signal to the scanner and receives a signal from it | Ignition key in position ON (II): pulses or battery voltage |
| 24 | Yellow | SEFMJ | Communication with the multiplex control unit is carried out | Ignition key in position ON (II): about 5 V. The engine is running under load: pulses |
| 25*1 | Blue with white stripe | VSSOUT (vehicle speed sensor output signal) | Signal is sent from the VSS sensor | Depending on the speed of the car: pulses |
| 26 | Blue | MEASURE (engine speed pulse) | The engine speed pulse is output | The engine is running: pulses. |
| 27*7 | Red with blue stripe | IMOCD (Immobilizer code) | Immobilizer signal detected | |
| 29 | Brown | SCS (Signal from the diagnostic connector) | Signal from diagnostic connector is detected | The signal from the diagnostic connector is shorted by the jumper of the Honda PGM tester: about 0 V. Without jumper: about 5 V or battery voltage. |
| 31 | Green with white stripe | MIL (Malfunction indicator light) | The MIL lamp comes on | MIL lamp on: approx. 0 V. MIL lamp off: battery voltage |
*1: models with automatic transmission
*2: models with manual transmission
*3: Models with TWO neutralizer
*4: models KG, KS, KE, KR, KU, KZ, FO, KQ, KK, KM
*5: KG, KS, KE, KR, KU models (Hong Kong)
*6: models KG, KS, KE, KR, KU, KZ, FO, KQ
*7: models KG, KS, KE, KR, KU, KN, KH, KY KZ, FO, KQ, KK, KM
*8: Except for KG, KS, KE, KR, KU, KN, KH models, KY, KZ, FO, KQ, KK, KM
*9: Except models with TWC catalytic converter
*10: models with cruise control