Fault diagnosis sequence
When the PGM-FI warning lamp comes on or you want to diagnose problems with various components, start the diagnosis after checking the PGM-FI warning lamp, then clear the DTCs (diagnostic trouble codes) and after completing the diagnosis, repair the failed component.
Checking the PGM-FI warning lamp
When not using the HONDA PGM tester or other diagnostic tool
Connect the DLC terminal box to the 16-pin diagnostic connector located on the left side of the center console, short-circuit terminals No. 4 and 9 of the DLC terminal box and press the switch. When the PGM-FI indicator lamp starts flashing, count the number of flashes. The flashing of the control lamp is repeated. Each long flash corresponds to the tens digit of the code number, and each short flash corresponds to the ones digit of the code number. A diagnostic tool can also be connected to the terminal box.
When using the HONDA PGM tester or other diagnostic tool
1. Connect a Honda PGM tester or other diagnostic tool to the 16-pin diagnostic socket located on the left side of the center console.
2. Turn the ignition key to the ON position (II).
3. Read fault codes (DTC) and data «freeze frame» (Freezing data), displayed on the Honda PGM tester or scan tool and refer to the table to identify the faulty component (see below).
- Before connecting a Honda PGM tester or other diagnostic tool, refer to the description for the appropriate tool.
- Because Honda PGM tester allows you to identify data «freeze frame» (Freezing data), make a screenshot and other various data of the control unit, select the mode corresponding to the purpose of the test before carrying out the diagnosis.
Erasing fault codes
Erasing trouble codes is done using a Honda PGM tester or other diagnostic tool connected to the 16-pin diagnostic socket located on the left side of the center console.
1. Turn the ignition key to the OFF position.
2. Reset the control unit memory by removing fuse #13 (7.5A) from the fuse box on the passenger side for at least 10 seconds.
Resetting simultaneously resets the clock and erases fixed radio frequencies.
Restoring the system after completing diagnostics
1. Disconnect the DLC terminal box, Honda PGM tester, or other diagnostic tool from the 16-pin diagnostic connector.
Leaving the diagnostic connector SCS pins closed will cause the PGM-FI warning lamp to stay on.
2. Reset the control unit memory.
3. Set the clock and restore the radio frequencies.
Troubleshooting Notes
The PGM-FI warning lamp may light up or flash in case of poor connection of the connectors, therefore, in the event that the location of the malfunction is not clarified as a result of the diagnostics carried out, check the connection of all 4 connectors of the control unit and the connector of the suspected faulty component (clean and repair if necessary). If, after following the above recommendations, a malfunction cannot also be detected, check in accordance with the diagnostic table for symptoms of malfunctions (see below).
- The PGM-FI warning lamp lights up when a malfunction is detected. The control unit stores information about faults in memory even after the ignition key is turned to the OFF position, so the control lamp goes out after the ignition key is turned to the OFF position, and lights up again after the ignition key is turned to the ON position (II).
- A digital tester is used to diagnose faults. To check the 4 connectors of the control unit, it is necessary to unscrew the fixing bolts of the control unit.
- If the 32-pin, 25-pin, 31-pin or 16-pin connector of the control unit is disconnected during troubleshooting and the ignition key is turned to the ON position (II), the PGM-FI warning light may come on, so clear the trouble codes (see above).
- Due to the fact that the automatic transmission system and sensors are used together / during diagnostics with the control module connectors disconnected, the D indicator may light up. In this case, after completing the PGM-FI system test, erase the control module memory (see above) and check that indicator D is off.
Fault codes determined by the flashing of the PGM-FI warning lamp
*: 2 faults are displayed in sequence
- Each long flash corresponds to the tens digit of the code number.
- If the number of flashes does not match the table or the lamp is on constantly, then the control unit is faulty.
- Sometimes the PGM-FI warning light and the D indicator will come on at the same time. In this case, troubleshoot the PGM-FI control system, and then recheck if the D indicator comes on.
Diagnostic Trouble Codes
Diagnostics of malfunctions by symptoms
In case of engine problems listed below, perform the checks listed on the right side of the table, in numerical order.
*1: If the starter does not work normally, check the battery and starter.
*2: If fault codes are stored in the memory of the control unit, see section «Diagnostic Trouble Codes».
