This is likely not the most recent version. Click here for the current page without highlighting.
This is Google's cache of www.westecauto.com/TechInfo/getcodes/honda.html.
To show your matches, we have used the snapshot of this page that we took as we crawled the web.

Google is not affiliated with the authors of cached pages or their content.

WesTech Technical Information - Honda Code Retrieval
Tech Vision
Diagnostic Code Retrieval
Home
Forums
Tech Info
Support
Links
Code Retrieval
Diagnostic Codes

Honda Code Retrieval

Accessing Diagnostic Trouble Codes

PGM-CARB

When PGM-CARB warning lamp is illuminated, turn ignition On, pull passenger side carpet inspection flap downward under dashboard and observe LED on top of control unit. The LED indicates a system failure by its blinking frequency.

The control unit LED can indicate any number of simultaneous component problems by blinking separate codes, one after another.

If diagnostic trouble codes 7, 9, 11, 12, 13 or higher than 14 are indicated, count the number of blinks again; if indicator is in fact blinking these DTC's, substitute a known good control unit and recheck. If indication goes away, replace control unit. The PGM-CARB dash warning lamp and control unit LED may come on, indicating a system problem, when, in fact, there is a poor or intermittent electrical connection. First, clean or repair connections as required.

PGM-FI

Except 1990-95 Accord, 1990-91 Prelude 2.1L, 1992-95 Prelude & 1991-95 Civic

In the event of a PGM-FI system electrical malfunction, a dash mounted indicator lamp will light and stay illuminated. If the dash warning lamp is on, or if a system malfunction is suspected even though the lamp is off, it is necessary to check the electronic control unit LED display. The LED display is on the ECM (ECU), which is located just below the right hand side of the instrument panel. The indicator lamps operate whenever the ignition is on and a diagnostic trouble code is stored in the ECM (ECU) memory.

When an abnormality is detected the LED display on the ECM (ECU) blinks. The LED blinks a certain number of times, with the number of blinks indicating the number of the diagnostic trouble code. After the LED blinks a number of times there will be a two second pause and the LED will blink out the number of the next DTC.

1990-95 Accord Four-Cylinder, 1990-91 Prelude 2.1L, 1992-95 Prelude & 1991-95 Civic

If the malfunction indicator/check engine lamp remains illuminated or comes on while the engine is operating, the ECM has detected a malfunction and has stored a diagnostic trouble code in its memory. To access the diagnostic trouble code memory, a jumper wire must be connected between the check connector terminals, then the ignition switch must be placed in the On position. The check connector is located under the right hand side of the instrument panel on Accord and Civic models. On 1990-91 Prelude models equipped with 2.1 L engine, the check connector is located in the engine compartment. On 1992-95 Prelude models, the check connector is located in the passenger compartment behind the center console. The ECM indicates stored diagnostic trouble code by flashing the malfunction indicator/check engine lamp. DTC's one through nine are indicated by individual short blinks and DTC's 10 and above are indicated by long and short blinks. One long blink is equivalent to 10 short blinks. The diagnostic trouble code can be determined by adding the long and short blinks.

1995 Accord V6

If the malfunction indicator/check engine lamp remains illuminated or comes on while the engine is operating, the ECM has detected a malfunction and has stored a diagnostic trouble code in its memory. To access the diagnostic trouble code memory, connect the Honda PGM Tester or an OBD II scan tool to the 16-pin Data Link Connector (DLC) in the center console next to the cigarette lighter. Turn the ignition switch On and begin troubleshooting as indicated by the tester. Follow the tester's prompts to diagnose the error. If unsure how to operate the OBD It scan tool or Honda PGM tester, refer to the tools user's manuals for specific operating instructions.

1996 Accord, Civic & Odyssey

If the malfunction indicator/check engine lamp remains illuminated or comes on while the engine is operating, the ECM has detected a malfunction and has stored a diagnostic trouble code in its memory. To access the diagnostic trouble code memory, connect the Honda PGM Tester or an OBD II scan tool to the 16-pin DLC in the center console behind the ashtray on Accord models, or under the left hand side of the instrument panel on Civic models. When servicing Odyssey models, the connector is located behind the right hand side of the front console. Turn the ignition switch On and begin troubleshooting as indicated by the tester. Follow the tester's prompts to diagnose the error. If unsure how to operate the OBD II scan tool or Honda PGM tester, refer to the tools user's manuals for specific operating instructions.

Clearing Diagnostic Trouble Codes

PGM-CARB

After making necessary repairs, disconnect battery negative ground cable for approximately 10 seconds to reset ECM (ECU) memory. After connecting battery ground cable, ensure LED display is turned off.

PGM-FI Multi-Point Fuel Injection

Except 1990-95 Accord, 1990-91 Prelude 2.1 L, 1992-95 Prelude & 1991-95 Civic

After making necessary repairs, disconnect battery negative ground cable for approximately 10 seconds to reset ECM (ECU) memory. After connecting battery ground cable, ensure LED display is turned off.

1990-95 Accord Four-Cylinder, 1990-91 Prelude 2.1 L, 1992-95 Prelude & 1991-95 Civic

On Accord and Civic models, remove the back-up fuse from the underhood fuse/ relay box for approximately 10 seconds to reset the ECM memory. On Prelude models, remove the clock fuse from the underhood fuse/relay box for approximately 10 seconds.

1995 Accord V6

After making necessary repairs, the DTC's should be cleared from the ECM (ECU) memory. This can be done by either turning off the ignition switch and removing the back-up (7.5A) fuse from the underhood fuse/relay box for 10 seconds or by using the OBD It scan tool or Honda PGM tester to clear the ECM's memory. It will also be necessary to remove the SCS Service Connector if it had been connected, and reset the PCM. Turn the ignition to OFF, then disconnect the scan tool.

1996 Accord, Civic & Odyssey

After making necessary repairs, the DTC's should be cleared from the ECM (ECU) memory. This can be done by either turning off the ignition switch and removing the back-up radio (7.5A) fuse from the underhood fuse/relay box for 10 seconds, or by using the OBD II scan tool or Honda PGM tester to clear the ECM's memory. It will also be necessary to remove the SCS Service Connector if it had been connected, and reset the PCM. Turn the ignition to OFF, then disconnect the scan tool.

Throttle Body Fuel Injection

After making necessary repairs, the DTC's should be cleared from the ECM (ECU) memory. Removing the hazard fuse at the main fuse box for approximately 10 seconds will clear all stored codes.


© Copyright 1997-2000, WesTech Automotive Technical Excellence