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2006-2009 Model

  1. Check the No. 16 (15A) fuse in the under-dash fuse/ relay box.

    Is the fuse OK? 

    1. YES  - Go to step  2.
    2. NO  - Replace the fuse.
  2. Remove the ignition coil relay, and test it (see POWER RELAY TEST ).

    Is the relay OK? 

    1. YES  - Go to step  3.
    2. NO  - Replace the ignition coil relay.
  3. Measure the voltage between ignition coil relay 4P socket terminal No. 1 and body ground, then terminal No. 4 and body ground.

    Is there battery voltage? 

    1. YES  - Go to step  4.
    2. NO  - Repair an open in the wire between the under-dash fuse/relay box and the ignition coil relay 4P socket.
      3. Fig 1: Measuring Voltage Between Ignition Coil Relay 4P Socket Terminal No. 1 & Body Ground
      G03692129Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Check for continuity between ignition coil relay 4P socket terminal No. 2 and No. 1 ignition coil 3P connector terminal No. 3

    Is there continuity? 

    1. YES  - Go to step  5.
    2. NO  - Repair an open in the wire between ignition coil relay 4P socket and the No. 1 ignition coil.
      3. Fig 2: Checking Continuity Between Ignition Coil Relay 4P Socket Terminal No. 2 & No. 1 Ignition Coil 3P Connector Terminal No. 3
      G03692130Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Check for continuity between ignition coil relay 3P connector terminal No. 2 and body ground.

    Is there continuity? 

    1. YES  - Go to step  6.
    2. NO  - Repair an open in the wire between ignition coil 3P connector terminal No. 2 and body ground.
  6. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 in GENERAL TROUBLESHOOTING INFORMATION ).
  7. Turn the ignition switch ON (II).
  8. Make sure the HDS communicates with the vehicle and the engine control module (ECM). If it doesn't, troubleshoot the DTC circuit (see DLC CIRCUIT TROUBLESHOOTING ).
  9. Jump the SCS line with the HDS.
    NOTE: This step must be done to protect the ECM from damage.
  10. Turn the ignition switch OFF.
  11. Disconnect ECM connector E (31P).
  12. Check for continuity between ignition coil relay 4P socket terminal No. 3 and body ground.

    Is there continuity? 

    1. YES  - Repair a short to ground in the wire between the ignition coil relay 4P socket and the ECM (E7).
    2. NO  - Go to step  13.
      3. Fig 3: Checking Continuity Between Ignition Coil Relay 4P Socket Terminal No. 3 & Body Ground
      G03692131Courtesy of AMERICAN HONDA MOTOR CO., INC.
  13. Check for continuity between ignition coil relay 4P socket terminal No. 3 and ECM connector terminal E7.

    Is there continuity? 

    1. YES  - The system is OK at this time. Check for loose or poor connections at the ignition coil relay and the ECM (E7).
    2. NO  - Repair an open in the wire between ignition coil relay 4P socket and the ECM (E7).
    Fig 4: Checking Continuity Between Ignition Coil Relay 4P Socket Terminal No. 3 & ECM Connector Terminal E7
    G03692132Courtesy of AMERICAN HONDA MOTOR CO., INC.
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