PGM-FI Main Relay Circuit Diagram (1992-1995 1.5L Honda Civic)

The PGM-FI Main Relay is the component that supplies 12 Volts to the fuel injection system.

Here you'll find the PGM-FI Main Relay's pin out and a simplified wiring diagram.

APPLIES TO: This wiring diagram applies to the following vehicles (with and without VTEC):

• 1.5L Honda Civic CX: 1992, 1993, 1994, 1995.
• 1.5L Honda Civic DX: 1992, 1993, 1994, 1995.
• 1.5L Honda Civic EX: 1992, 1993, 1994, 1995.
• 1.5L Honda Civic LX: 1992, 1993, 1994, 1995.
• 1.5L Honda Civic Si: 1992, 1993, 1994, 1995.
• 1.5L Honda Civic VX: 1992, 1993, 1994, 1995.
• 1.5L Honda Civic Del Sol S: 1993, 1994, 1995.
• 1.5L Honda Civic Del Sol Si: 1993, 1994, 1995.

The PGM-FI Main Relay can be easily tested with a multimeter. You can find the tutorial here: How To Test The PGM-FI Main Relay (1992-1995 1.5L Honda Civic).

RELATED WIRING DIAGRAMS:

• Fuel Injector Circuit Wiring Diagram (1992-1995 1.5L Honda Civic).
• Fuel Pump Circuit Wiring Diagram (1992-1995 1.5L Honda Civic).
• Ignition System Wiring Diagram (1992-1995 1.5L Honda Civic).

PGM-FI Main Relay Wiring Diagram

RELATED WIRING DIAGRAMS:

• Fuel Injector Circuit Wiring Diagram (1992-1995 1.5L Honda Civic).
• Fuel Pump Circuit Wiring Diagram (1992-1995 1.5L Honda Civic).

PGM-FI Main Relay Pin Out

PGM-FI Main Relay Circuits
Pin	Wire Color	Description
1	Yellow w/ white stripe (YEL/WHT)	12 Volts Input
2	Black (BLK)	Chassis Ground (-)
3	Yellow w/ black stripe (YEL/BLK)	12 Volts Output To ECM
4	--	Empty
5	Black w/ yellow stripe (BLK/YEL)	Ignition 12 Volts Input
6	Blue w/ white stripe (BLU/WHT)	12 Volts Input (Ign. Switch Start Position Only)
7	Yellow w/ green stripe (YEL/GRN)	12 Volts Output To Fuel Pump
8	Green w/ yellow stripe (GRN/YEL)	Fuel Pump Control Signal

More 1.5L Honda Civic Tutorials

You can find a complete list of 1.5L Honda Civic tutorials in this index:

• 1.5L Honda Civic Index of Articles.

Here's a small sample of the tutorials you'll find in the index:

• How To Test The MAP Sensor (1992-1995 1.5L Honda Civic).
• How To Test The Throttle Position Sensor (1992-1995 1.5L Honda Civic).
• How To Test Engine Compression (1992-1995 1.5L Honda Civic).
• How To Test The Fuel Pump In 2 Tests (1992-1995 1.5L Honda Civic).
• How To Test The Igniter, Ignition Coil Accord, Civic, CRV, and Odyssey (at easyautodiagnostics.com).