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OBD 0

Pinout'88 HF/Si'90-1 DX (Std.)'90-1 HF/Si'89-92 EF8/9 SiR
A1No.1 INJAux INJ w/A3No.1 INJNo.1 INJ
A2GRD w/A4 to Main RelayGRD w/A4 to Main RelayGRD w/A4 to Main RelayGRD w/A4 to Main Relay
A3No.2 INJAux INJ w/A1No.2 INJNo.2 INJ
A4GRD w/A2 to Main RelayGRD w/A2 to Main RelayGRD w/A2 to Main RelayGRD w/A2 to Main Relay
A5No.3 INJMain INJ w/A7No.3 INJNo.3 INJ
A6 Purge Cut-Off Solenoid ValvePurge Cut-Off Solenoid ValvePurge Cut-Off Solenoid Valve (HF Only)Purge Cut-Off Solenoid Valve
A7No.4 INJMain INJ w/A5No.4 INJNo.4 INJ
A8Lock-up Control Solenoid ValveLock-up Control Solenoid ValveLock-up Control Solenoid ValveSpool (VTEC) Solenoid Valve
A9----
A10-EGR Valve (CA A/T Only)EGR Valve (HF Only) Pressure Regulator Cut-Off Solenoid Valve
A11 EACV w/A17EACV w/A17EACV w/A17EACV
A12 Main Relay w/A14Main Relay w/A14Main Relay w/A14Main Relay w/A14
A13Main Relay w/A15Main Relay w/A15Main Relay w/A15Main Relay w/A15
A14 Main Relay w/A12Main Relay w/A12Main Relay w/A12Main Relay w/A12
A15 Main Relay w/A13Main Relay w/A13Main Relay w/A13Main Relay w/A13
A16 GRD w/A18 GRD w/A18GRD w/A18GRD w/A18
A17 EACV w/A11---
A18 GRD w/A16 GRD w/A16GRD w/A16GRD w/A16
B1Hazard Fuse w/Brake SwitchHazard Fuse w/Brake Switch-Hazard Fuse w/Brake Switch
B2Tandem Valve Control Solenoid ValveTandem Valve Control Solenoid Valve--
B3A/C Clutch RelayA/C Clutch RelayFast Idle ValveA/C Clutch Relay
B4Radiator Fan RelayRadiator Fan RelayRadiator Fan Relay-
B5AlternatorAlternatorAlternatorOil Pressure Switch
B6Check Engine LightCheck Engine LightCheck Engine LightCheck Engine Light(10A)
B7Shift Position Sensor (A/T Only)Shift Position Sensor (A/T Only)A/C Switch w/B8-
B8A/C SwitchA/C SwitchA/C Switch w/B7A/C Switch
B9---Brake Switch
B10--Crank Angle SensorCrank Angle Sensor
B11Shift Position Sensor (AT Only)Shift Position Sensor (AT Only)Clutch Switch (HF Only)Rear Defogger Switch
B12--Crank Angle SensorCrank Angle Sensor
B13No.2 Fuse (10A)No.2 Fuse (10A)No.2 Fuse (10A)No.2 Fuse (10A)
B14AlternatorAlternatorAlternatorAlternator
B15Igniter Unit w/B17Igniter Unit w/B17Igniter Unit w/B17Igniter Unit w/B17
B16Speed SensorSpeed SensorSpeed SensorSpeed Sensor (Electrical)
B17Igniter Unit w/B15Igniter Unit w/B15Igniter Unit w/B15Igniter Unit w/B15
B18----
B19ELDELDELDKnock Sensor
B20Ign. Timing Adj. ConnectorIgn. Timing Adj. ConnectorIgn. Timing Adj. ConnectorIgn. Timing Adj. Connector
C1Crank Angle SensorCrank Angle SensorCylinder Position SensorCylinder Position Sensor
C2Crank Angle SensorCrank Angle SensorCylinder Position SensorCylinder Position Sensor
C3TDC SensorTDC SensorTDC SensorTDC Sensor
C4TDC SensorTDC SensorTDC SensorTDC Sensor
C5TA SensorTA SensorTA SensorTA Sensor
C6TW SensorTW SensorTW SensorTW Sensor
C7Throttle Angle SensorThrottle Angle SensorThrottle Angle SensorThrottle Angle Sensor
C8-EGR Valve Lift Sensor (CA A/T Only)-O2 Sensor B
C9PA SensorPA SensorPA SensorP/S oil switch
C10Brake SwitchBrake SwitchBrake and Reverse Light Switch (HF Only)Brake Switch
C11MAP SensorMAP SensorMAP SensorMAP Sensor
C12PA SensorPA SensorThrottle Angle SensorThrottle Angle Sensor
C13PA SensorPA SensorThrottle Angle SensorThrottle Angle Sensor
C14MAP SensorMAP SensorMAP SensorMAP Sensor
C15MAP SensorMAP SensorMAP SensorMAP Sensor
C16O2 Sensor AO2 Sensor AO2 Sensor AO2 Sensor A