If the D indicator lamp lights up, short-circuit the diagnostic connector using a special tool.
Then turn the ignition key to the ON (II) position and observe the flashing (blinking) of the D indicator lamp.
1. instrument cluster; 2. Data connector (3-pin); 3. diagnostic connector (2-pin); 4. diagnostic connector jumper, 07PAZ-0010100; 5. signal lamp
Codes 1 through 9 are indicated by separate short flashes. Codes 10 and above are indicated by a series of long and short flashes. One long flash equals 10 short flashes. To determine the code, add the long and short flashes together. Once you have determined the code, refer to the electrical equipment fault table (see below).

If a fault occurs in the PGM-F1 main relay, the D indicator lamp will also illuminate. After correcting the fault in the PGM-FI main relay, remove the BACK UP (7.5 A) fuse from the under-dash fuse/relay box for 10 seconds and reset the PCM, then retest.
Note: Removing the BACK UP fuse also erases the preset station frequencies, time setting, and clutch feedback signal from memory. Before removing the fuse, write down the station frequencies so that you can input them later, and refer to the appropriate procedures below to re-enter the clutch feedback signal into memory.
1. Remove the glove box (see chapter "Body").
2. Remove the PCM module.
Note: The picture shows the right-hand drive model; the arrangement on the left-hand drive model is symmetrical.

3. Check the PCM electrical circuit according to the troubleshooting flow chart using a digital multitester equipped with cone-tip probes.
1. RCM MODULE
2. DIGITAL MULTI-TESTER. Available for sale or 07411 -0020000
3. TEST PROBE WITH CONICAL TIP
Procedure for resetting the PCM module
1. Turn the ignition key to the OFF position.
2. Remove the BACK UP (7.5A) fuse from the under-dash fuse/relay box for 10 seconds and reset the ECM/PCM.
Note: Removing the BACK UP fuse also erases the preset station frequencies, time setting, and clutch feedback signal from memory. Before removing the fuse, write down the station frequencies so that you can input them later, and refer to the appropriate procedures below to re-enter the clutch feedback signal into memory.
1. FUSE/RELAY BOX UNDER DASHBOARD
2. BACK UP FUSE (7.5A)
Final procedure
Note: This procedure should be performed after troubleshooting any faults.
1. Remove the jumper from the diagnostic connector.
2. Perform the ECM/PCM module reset procedure.
3. Enter the frequencies of the preset radio stations and set the time.
4. To re-enter the starting clutch control feedback signal into memory, refer to the relevant procedures below.
(The article was taken from the website: www.hondabook.ru)
