where do you locate the diagnostic port on a 1989 honda civic SI
04-23-2012, 08:49 AM
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where do you locate the diagnostic port on a 1989 honda civic SI
where do you locate the diagnostic port on a 1989 honda civic SI. So i can Scan a Code Check engine light is on. 
04-23-2012, 09:05 AM
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Re: where do you locate the diagnostic port on a 1989 honda civic SI
http://www.crxsi.com/reference/ecu_codes.htm
The ECU is located at the front of the passenger footwell, under the carpet. There is a single flashing light in the center of the ECU that flashes the codes. Simply count the flashes in each sequence to determine the code.
Code 0 _____ Faulty ECU
Code 1 _____ Oxygen content
Code 2 _____ Does not appear to exist
Code 3 _____ MAP sensor
Code 4 _____ Crank angle sensor
Code 5 _____ MAP sensor again
Code 6 _____ Coolant temperature
Code 7 _____ Throttle angle
Code 8 _____ Top dead center sensor
Code 9 _____ No. 1 cylinder position (only on 1.6L)
Code 10 ____ Intake air temperature
Code 11 ____ Does not appear to exist
Code 12 ____ Exhaust gas recirculation system
Code 13 ____ Atmosphric Pressure
Code 14 ____ Electronic air control (EACV)
Code 15 ____ Ignition output signal
Code 16 ____ Fuel injector
Code 17 ____ Vehicle speed sensor
Code 18 ____ Does not appear to exist
Code 19 ____ Lock up control solenoid (auto trans only)
Code 20 ____ Electric load
Code 0 _____ Faulty ECU
Code 1 _____ Oxygen content
Code 2 _____ Does not appear to exist
Code 3 _____ MAP sensor
Code 4 _____ Crank angle sensor
Code 5 _____ MAP sensor again
Code 6 _____ Coolant temperature
Code 7 _____ Throttle angle
Code 8 _____ Top dead center sensor
Code 9 _____ No. 1 cylinder position (only on 1.6L)
Code 10 ____ Intake air temperature
Code 11 ____ Does not appear to exist
Code 12 ____ Exhaust gas recirculation system
Code 13 ____ Atmosphric Pressure
Code 14 ____ Electronic air control (EACV)
Code 15 ____ Ignition output signal
Code 16 ____ Fuel injector
Code 17 ____ Vehicle speed sensor
Code 18 ____ Does not appear to exist
Code 19 ____ Lock up control solenoid (auto trans only)
Code 20 ____ Electric load
04-23-2012, 12:15 PM
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Re: where do you locate the diagnostic port on a 1989 honda civic SI
You don't even have to jump the connector just pull up the carpet turn the ignition to on, look at the red LED light and start counting the number of blinks.
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04-23-2012, 01:25 PM
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Re: where do you locate the diagnostic port on a 1989 honda civic SI
yes it works i just replaced the speedo cable and now this check engine light is on with Code 17 ____ Vehicle speed sensor. What should i do next?
04-23-2012, 01:37 PM
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Re: where do you locate the diagnostic port on a 1989 honda civic SI
Did it just start this problem when you replaced the cable?
If so, remove your cluster again and check the speed pulser.
It is the ring around where the cable plugs into the back of the cluster.
If so, remove your cluster again and check the speed pulser.
It is the ring around where the cable plugs into the back of the cluster.
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