PGM-FI Main Relay Circuit Diagram (1996-1998 1.6L 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.

You can find the PGM-FI Main Relay test tutorial here:

• How To Test The PGM-FI Main Relay (1996-1998 1.6L Honda Civic).

APPLIES TO: This wiring diagram applies to the following vehicles:

• 1.6L Honda Civic CX: 1996, 1997, 1998.
• 1.6L Honda Civic DX: 1996, 1997, 1998.
• 1.6L Honda Civic EX: 1996, 1997, 1998.
• 1.6L Honda Civic HX: 1996, 1997, 1998.
• 1.6L Honda Civic LX: 1996, 1997, 1998.
• 1.6L Honda Civic Del Sol S: 1996, 1997.
• 1.6L Honda Civic Del Sol Si: 1996, 1997.
• 1.6L Honda Civic Del Sol VTEC: 1996, 1997.

RELATED WIRING DIAGRAMS:

• 1996-1998 Fuel Injector Circuit Diagram (1.6L Honda Civic).
• Fuel Pump Circuit Wiring Diagram (1996-1998 1.6L Honda Civic).

PGM-FI Main Relay Pin Out

PGM-FI Main Relay Circuits
Pin	Wire Color	Description
1	White w/ black stripe (WHT/BLK)	12 Volts Input
2	Black (BLK)	Chassis Ground (-)
3	Yellow w/ black stripe (YEL/BLK)	12 Volts Output To ECM
4	--	Empty
5	Yellow w/ green stripe (YEL/GRN)	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 1.6L Honda Civic Tutorials

You can find all of the 1.6L Honda Civic articles here: Honda 1.6L Index Of Articles.

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

• How To Test For A Blown Head Gasket (Honda 1.6L).
• How To Test The Alternator (1996-2000 1.6L Honda Civic).
• Testing Shift Control Solenoid Valves A and B (1996-2000 1.6L Honda Civic).
• How To Troubleshoot A No Start (Honda 1.6L).
• How To Test The Igniter, Ignition Coil Accord, Civic, CRV, and Odyssey (at: easyautodiagnostics.com).