How To Test The PGM-FI Main Relay (1992-1995 1.5L Honda Civic)

TEST 2: Making Sure That Terminal No. 5 Is Getting 12 Volts

Making Sure That Terminal No. 5 Is Getting 12 Volts. How To Test The PGM-FI Main Relay (1992, 1993, 1994, 1995 1.5L Honda Civic And Honda Civic Del Sol)

Female terminal number 5, of the PGM-FI Main Relay's connector, should have 10 to 12 Volts DC present with the key in the ON or START position.

The wire that connects to female terminal no. 5 is the black with yellow stripe (BLK/YEL) wire of the connector.

Terminal no. 5 gets power from:

  • Fuse no. 12 (without SRS) of the underdash fuse box.
  • Fuse no. 24 (with SRS) of the underdash fuse box.

Let's get testing:

  1. 1

    Disconnect the PGM-FI Main Relay from its electrical connector.

  2. 2

    Place your multimeter in Volts DC mode.

  3. 3

    Connect the black multimeter test lead to a good Ground point.

    I recommend that you use a jumper wire to connect the black multimeter test lead to the battery negative (-) terminal.

  4. 4

    Gently probe the female terminal labeled with the number 5 (in the photo above) with the red multimeter test lead.

    Female terminal no. 5 connects to the black with yellow stripe (BLK/YEL) wire of the connector.

  5. 5

    Turn the key to the ON position.

  6. 6

    Your multimeter should register 10 to 12 Volts DC.

Let's find out what your test result means:

CASE 1: 10 to 12 Volts are present. This is the correct and expected test result.

Now that you've confirmed that power is present, the next step is to make sure that terminal no. 6 is getting power too. Go to: TEST 3: Making Sure That Terminal No. 6 Is Getting 12 Volts.

CASE 2: 10 to 12 Volts ARE NOT present. Check that you're testing the correct female terminal of the connector.

If you still don't see 10 to 12 Volts, then your next step is to make sure that fuse no. 12 (w/o SRS) or fuse no. 24 (w SRS) of the underdash fuse box is not blown.

If the fuse is blown, replace and repeat the test.

TEST 3: Making Sure That Terminal No. 6 Is Getting 12 Volts

Making Sure That Terminal No. 6 Is Getting 12 Volts. How To Test The PGM-FI Main Relay (1992, 1993, 1994, 1995 1.5L Honda Civic And Honda Civic Del Sol)

So far you have tested and:

  • Confirmed that female terminal no. 1 is getting 10 to 12 Volts (TEST 1).
  • Confirmed that female terminal no. 5 is getting 10 to 12 Volts (TEST 2).

In this test section we'll make sure that female terminal number 6 has 10 to 12 Volts DC present with the key in the START position (while cranking the engine).

The wire that connects to female terminal no. 6 is the blue with white stripe (BLU/WHT) wire of the connector.

Terminal no. 6 gets power from fuse no. 18 of the underdash fuse box.

These are the test steps:

  1. 1

    Disconnect the PGM-FI Main Relay from its electrical connector.

  2. 2

    Place your multimeter in Volts DC mode.

  3. 3

    Connect the black multimeter test lead to a good Ground point.

    I recommend that you use a jumper wire to connect the black multimeter test lead to the battery negative (-) terminal.

  4. 4

    Gently probe the female terminal labeled with the number 6 (in the photo above) with the red multimeter test lead.

    Female terminal no. 6 connects to the blue with white stripe (BLU/WHT) wire of the connector.

  5. 5

    Turn the key and crank the engine.

  6. 6

    Your multimeter should register 10 to 12 Volts DC.

Let's find out what your test result means:

CASE 1: 10 to 12 Volts are present. This is the correct and expected test result.

The next step is to make sure that terminal no. 2 is providing Ground to the PGM-FI Main Relay. Go to: TEST 4: Making Sure That Terminal No. 2 Is Getting Ground.

CASE 2: 10 to 12 Volts ARE NOT present. Check that you're testing the correct female terminal of the connector.

If you still don't see 10 to 12 Volts, then your next step is to make sure that fuse no. 18 of the underdash fuse box is not blown.

If the fuse is blown, replace and repeat the test.

Honda Vehicles:

  • Civic (CX, DX, EX, LX, VX) 1.5L
    • 1992, 1993, 1994, 1995
  • Civic Del Sol 1.5L
    • 1993, 1994, 1995