TEST 5: Making Sure The Ignition Coil And Igniter Are Getting Power

Making Sure The Ignition Coil and Igniter Are Getting Power. How To Test The Ignition System (1995, 1996, 1997 2.7L V6 Honda Accord)

The ignition coil and the igniter (ignition control module) get 12 Volts from the same circuit.

This circuit, or rather this wire is the black with yellow stripe (BLK/YEL) wire of the ignition coil's 4-wire electrical connector.

This BLK/YEL wire connects to the female terminal labeled with the number 1 of the ignition coil's 4-wire connector in the photo above.

Now, if this test result confirms that the ignition coil is getting power, you can also conclude that the igniter is too.

If the ignition coil and igniter are getting power, we'll move on to TEST 6.

WIRING DIAGRAM: You can see the ignition coil's power circuit in this wiring diagram here: Ignition System Wiring Diagram (1995-1997 2.7L Honda Accord).

These are the test steps:

  1. 1

    Disconnect the ignition coil from its electrical connector.

  2. 2

    Place your multimeter in Volts DC mode.

  3. 3

    Connect the black multimeter test lead to the battery negative (-) terminal.

  4. 4

    Turn the key ON but don't crank the engine.

  5. 5

    With the red multimeter test lead, gently probe the terminal labeled with the number 1 of the ignition coil's electrical connector (see photo above).

  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 in terminal #1. Then both the igniter (ignition control module) and the ignition coil are receiving 12 Volts.

The next step is now to make sure that the igniter is activating the ignition coil to spark. For this test go to: TEST 6: Testing The Ignition Coil's Switching Signal.

CASE 2: 10 to 12 Volts ARE NOT present in terminal #1. Without 10 to 12 Volts, the ignition coil and the igniter will not function.

Your next step is to find out why this voltage is missing and restore it to the circuit. Once power is restored, the ignition system should start producing spark once again.

TEST 6: Testing The Ignition Coil's Switching Signal

Testing The Ignition Coil's Switching Signal. How To Test The Ignition System (1995, 1996, 1997 2.7L V6 Honda Accord)

In this test step, we're gonna' make sure that the igniter (ignition control module) is activating the ignition coil to spark.

We'll accomplish this by connecting a 12 Volt automotive test light to the green (GRN) wire of the distributor's 3-wire electrical connector.

The test light should flash ON and OFF, while cranking the engine, if the ignition coil's activation signal is present in the GRN wire.

IMPORTANT: If in TEST 3 you got spark from the ignition coil's high tension wire, you don't have to perform this test step. This test step checks for the Switching signal which is responsible for making the ignition coil spark, so a spark result in TEST 3 confirms that the Switching signal exists.

NOTE: The ignition coil and the distributor must remain connected to their electrical connectors for this test to work.

These are the test steps:

  1. 1

    Connect the alligator clip of the test light to the battery positive (+) terminal.

  2. 2

    With the probe end of the test light, probe the GRN wire of the distributor's 3-wire connector.

    IMPORTANT: The ignition coil and the distributor must remain connected to their electrical connectors for this test to work.

    Re-connect the ignition coil's high tension wire back onto the distributor, if you haven't done so already.

  3. 3

    Have your assistant crank the engine while you observe the test light.

  4. 4

    If the activation signal is present, the test light will flash ON and OFF continuously as long as your assistant is cranking the engine.

Let's interpret the results of this test:

CASE 1: The test light flashed ON and OFF while the engine was cranking. This is the correct test result and it tells you that the ignition coil is getting its activation signal.

You can conclude that the ignition coil is bad if you have:

  • Confirmed that none of the spark plug wires are sparking (TEST 1).
  • Confirmed that no spark is coming out of the ignition coil's high tension wire (TEST 3).
  • Confirmed that no spark is coming out of the ignition coil's tower (TEST 4).
  • Confirmed that the ignition coil and igniter are getting power (TEST 5).
  • Confirmed, in this test section, that the ignition coil is getting its activation signal.

CASE 2: The test light DID NOT flash ON and OFF while the engine was cranking. Without an activation signal, the ignition coil will not fire spark.

There's a good chance that this lack of an activation signal is due to an igniter problem. The next step is to go to: TEST 7: Testing The Igniter's Activation Signal.

Here's why: The igniter (ignition control module) is the one that activates the ignition coil. It could be bad or maybe it's not receiving its own activation signal from the fuel injection computer, therefore, we need TEST 7 to further investigate this.

Honda Vehicles:

  • Accord 2.7L V6
    • 1995,
      1996,
      1997