Relay Control Module Test

The relay control module is part of the under-hood fuse/ relay box, and it contains these relays:

• PGM-FI main relay 1
• Ignition coil relay
• PGM-FI subrelay
• ETCS relay

If any of these relays fail the test, replace the under-hood fuse/relay box.

1. Do the battery terminal disconnection procedure,(see BATTERY TERMINAL DISCONNECTION AND RECONNECTION then disconnect under-hood fuse/relay box connectors C (2P), E (14P), and H (9P).
   Fig 1: Identifying Under-Hood Fuse/Relay Box Connectors Terminals C (2P), E (14P),And H (9P)

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
2. Connect battery power to the C2 terminal.

   PGM-FI main relay 1:

   • Connect the E5 terminal to body ground. There should be battery voltage between the H1 terminal and body ground.
   • Disconnect the E5 terminal from the body ground. There should be no voltage between the HI terminal and the body ground.

   Ignition coil relay:

   • Connect the E5 terminal to body ground. There should be battery voltage between the H6 terminal and body ground.
   • Disconnect the E5 terminal from the body ground. There should be no voltage between the H6 terminal and the body ground.

   PGM-FI subrelay:

   • Connect the E5 and E13 terminals to body ground. There should be battery voltage between the H9 terminal and body ground.
   • Disconnect the E5 terminal from the body ground. There should be no voltage between the H9 terminal and the body ground.

   ETCS relay:

   • Connect the E5 and E14 terminals to body ground. There should be battery voltage between the H7 terminal and body ground.
   • Disconnect the E5 terminal from the body ground. There should be no voltage between the H7 terminal and the body ground.