Troubleshooting procedures

When the PCM module detects a deviation in one or another input or output signal from various systems, the signal lamp D flashes in the instrument cluster. If the diagnostic connector is bridged (located under the dashboard on the passenger side) using a special tool, as shown in the figure, the warning light D will start outputting diagnostic trouble codes (DTC) through outbreaks (blinking) lamps, provided that the ignition key is in the ON position (II).

If the signal lamp D lights up, bridge the diagnostic socket using a special tool.

Then turn the ignition key to the ON position (II) and watch the flashes (blinking) signal lamp D.



Codes 1 to 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 long and short flashes. After determining the code, refer to the table of electrical faults (see below).



If a fault occurs in the PGM-F1 main relay, the signal lamp D also lights up. After correcting the fault in the PGM-FI main relay, remove the BACK UP fuse for 10 seconds (7.5 A) from the under-dash fuse/relay box and reset the PCM, then recheck.

Note: Removing the BACK UP fuse also clears preset radio frequencies, time setting, and clutch control feedback from memory. Before removing the fuse, write down the station frequencies so that you can enter them later, and to re-memorize the clutch control feedback signal, see the appropriate procedures below.

1. Remove the glove box (see chapter «Body»).

2. Remove the PCM.

Note: The illustration shows a right hand drive model; the layout on the left-hand drive model is symmetrical.

3. Check the PCM circuitry according to the troubleshooting flowchart using a digital multi-tester equipped with cone-tip probes.

Resetting the PCM Module

1. Turn the ignition key to the OFF position.

2. Pull out the BACK UP fuse for 10 seconds (7.5 A) from the under-dash fuse/relay box and reset the ECM/PCM.

Note: Removing the BACK UP fuse also clears preset radio frequencies, time setting, and clutch control feedback from memory. Before removing the fuse, write down the station frequencies so that you can enter them later, and to re-memorize the clutch control feedback signal, see the appropriate procedures below.

Final procedure

Note: This procedure should be performed after troubleshooting any problem.

1. Remove the jumper from the diagnostic socket.

2. Perform the ECM/PCM reset procedure.

3. Enter preset radio frequencies and set the time.

4. To re-memorize the start clutch control feedback signal, see the appropriate procedures below.