With Honda PGM Tester or OBDII Scantool

When the PCM senses an abnormality in the input or output systems, the [D4] indicator light in the gauge assembly will blink. When the 16P Data Link Connector (DLC) (located under the beverage holder) is connected to the OBD II Scan Tool or Honda PGM Tester as shown, the scan tool or tester will indicate the Diagnostic Trouble Code (DTC) when the ignition switch is turned ON.




When the [D4] indicator light has been reported on, connect the OBD-II Scan Tool conforming to SAE J1978 or Honda PGM Tester to the DLC (16P) located under the beverage holder. Turn the ignition switch on and observe the DTC on the screen of the OBDII Scan Tool or Honda PGM Tester. After determining the DTC, refer to Diagnosis by Symptom. Testing and Inspection

NOTE: See the OBD II Scan Tool or Honda PGM Tester user's manual for specific instructions.

Some PGM-FI problems will also make the [D4] indicator light come on. After repairing the PGM-FI system, disconnect the CLOCK, RADIO fuse (10 A) in the under-hood fuse/relay box for more than 10 seconds to reset the PCM memory, then recheck.

NOTE: Disconnecting the CLOCK, RADIO fuse also cancels the radio anti-theft code, preset stations and the clock setting. Get the customer's code number, and make note of the radio presets before removing the fuse so you can reset them.