Troubleshooting Procedures

1. How To Begin Troubleshooting
When the Malfunction Indicator Lamp (MIL) has been reported on, or there is a driveability problem, use the appropriate procedure below to diagnose and repair the problem.




A. When the MIL has come on:
1. Connect the Honda PGM Tester or an OBD-II scan tool to the 16P Data Link Connector (DLC) located behind the front console right side.
2. Turn the ignition switch ON.
3. Honda PGM Tester: Begin troubleshooting as indicated by the tester. The DTC troubleshooting flowcharts are not needed with the tester; follow the tester's prompts.
OBD-II scan tool: Check the DTC and note it. Also check and note the freeze frame data. Refer to the Diagnostic Trouble Code Chart and begin troubleshooting.

NOTE:
- See the OBD-II scan tool or Honda PCM Tester user's manuals for specific operating instructions.
- The scan tool or tester can read the Diagnostic Trouble Codes (DTC), freeze frame data, current data, and other Engine Control Module (ECM) data.
- Freeze frame data indicates the engine conditions when the first malfunction, misfire or fuel trim malfunction was detected. It can be useful information when troubleshooting.




B. When the MIL has not come on, but there is a driveability problem.
C. DTCs will be indicated by the blinking of the Malfunction Indicator Lamp (MIL) with the SCS service connector connected.
- Connect the SCS service connector to Service Check Connector as shown. (The 2P Service Check Connector is located under the dash on the passenger's side of the car.) Turn the ignition switch on (II).




II. Engine Control Module (ECM) Reset Procedure
Either of the following actions will reset the ECM.
- Use the OBD-II scan tool or Honda PGM Tester to clear the ECM's memory.

NOTE:
- See the OBD-II scan tool or Honda PGM Tester use's manuals for specific operating instructions.
- Turn the ignition switch OFF. Remove the BACK UP (7.5 A) fuse from the under-hood fuse/relay box for 10 seconds.

III. Final Procedure (this procedure must be done after any troubleshooting)
1. Remove the SCS Service Connector if it is connected.

NOTE:
- If the SCS service connectors is connected and there are no DTCs stored in the ECM, the MIL will stay on when the ignition switch is turned ON (II).

2. Do the ECM Reset Procedure.
3. Turn the ignition switch OFF.
4. Disconnect the OBD-II scan tool or Honda PGM Tester from the Data Link Connector (16P).








If the inspection for a particular code requires voltage or resistance checks at the ECM connectors, remove the right door sill molding and kick panel. Pull the carpet back to expose the ECM. Unbolt the ECM cover. Turn the ignition switch off, and connect the backprobe sets and a digital multimeter as described below. Check the system according to the procedure described for the appropriate code(s) listed on the following pages.