In every car's life, over there comes a time once the dreaded "check engine" irradiate appears. No to fear. Over there are countless resources you deserve to use come check and diagnose these DTCs (diagnostic problem codes).
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For 1992-1995 (OBD1) vehicles you can inspect these yourself by using the technique shown in the photo below.
Location that OBD1 Honda Diagnostic Connector

How to read the Code
In OBD1 Hondas and also Acuras over there is a diagnostic port and also a two-pin connector located under the passenger-side dashboard. When checking the DTCs you will have to insert a jumper cable from one pin to the various other in the two-pin connector. If you don't have actually a piece of wire around, the is also common to see civilization using paperclips to "jump" the two sides of the connector.Once you have "jumped" the two-pin connector, you now must insert the crucial and turn on the vehicle. Your examine engine light will then start to flash. Every long flash is a digit in the "tens" place in the code, and a quick flash is a number in the "ones" place. So, if you check out two lengthy flashes and also five quick flashes, you have a code 25. There will certainly be a lengthy pause between codes. Check out all the codes until they begin to repeat themselves. Then refer to the table below to acquire the an interpretation of every code.
For 1996 and also Newer Vehicles
For 1996 and newer (OBD2) vehicles, you can visit a neighborhood auto components supplier, together as development Auto Parts, the offers complimentary vehicle diagnostics. Most of these free services are limited to OBD2 vehicles and also will offer you an prompt explanation the what the password is. As always, it's a good idea to compose these codes down and do a tiny search virtual to watch what various other owners have actually run into when receiving the exact same codes.
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The Most common Honda and also Acura OBD1 Codes
Codes 0 and 11 | Electronic regulate module (ECM) |
Code 1 | Heated oxygen sensor A |
Code 2 | Oxygen content B |
Codes 3 and also 5 | Manifold pure pressure |
Code 4 | Crank place sensor |
Code 6 | Engine coolant temperature |
Code 7 | Throttle position sensor |
Code 8 | Top dead center sensor |
Code 9 | No.1 cylinder place sensor |
Code 10 | Intake waiting temperature sensor |
Code 12 | Exhaust recirculation system |
Code 13 | Barometric press sensor |
Code 14 | Idle air control valve or poor ECM |
Code 15 | Ignition output signal |
Code 16 | Fuel Injector |
Code 17 | Vehicle rate sensor |
Code 19 | A/T lock-up manage solenoid |
Code 20 | Electric load detector |
Code 21 | V-TEC control solenoid |
Code 22 | V-TEC pressure solenoid |
Code 23 | Knock sensor |
Code 30 | A/T FI signal A |
Code 30 | A/T FI signal B |
Code 41 | Heated oxygen sensor heater |
Code 43 | Fuel it is provided system |
Code 45 | Fuel supply metering |
Code 48 | Heated oxygen sensor |
Code 61 | Front boil oxygen sensor |
Code 63 | Rear cook oxygen sensor |
Code 65 | Rear heated oxygen sensor heater |
Code 67 | Catalytic converter system |
Code 70 | Automatic transaxle |
Code 71 | Misfire recognize cylinder 1 |
Code 72 | Misfire detected cylinder 2 |
Code 73 | Misfire recognize cylinder 3 |
Code 74 | Misfire detected cylinder 4 |
Code 75 | Misfire detect cylinder 5 |
Code 76 | Misfire recognize cylinder 6 |
Code 80 | Exhaust recirculation system |
Code 86 | Coolant temperature |
Code 92 | Evaporative emission regulate system |
This write-up is accurate and true come the ideal of the author’s knowledge. Content is for informational or entertainment functions only and also does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters.