The Dreaded "Check Engine" Light

In every car's life, there comes a time when the dreaded "check engine" irradiate appears. No to fear. There are numerous resources you deserve to use come check and diagnose these DTCs (diagnostic problem codes).

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For 1992-1995 (OBD1) vehicles girlfriend can check these you yourself by making use of the an approach shown in the picture below.

Location that OBD1 Honda Diagnostic Connector


How to review the Code

In OBD1 Hondas and Acuras over there is a diagnostic port and also a two-pin connector situated under the passenger-side dashboard. As soon as checking the DTCs girlfriend will have to insert a jumper cable from one pen to the other in the two-pin connector. If friend don't have actually a piece of cable around, it is additionally common to see world using paperclips to "jump" the two sides of the connector.

Once you have actually "jumped" the two-pin connector, you now need to insert the vital and rotate on the vehicle. Your inspect engine light will then begin to flash. Every long flash is a number in the "tens" ar in the code, and also a brief flash is a digit in the "ones" place. So, if you view two lengthy flashes and five quick flashes, you have actually a password 25. There will certainly be a long pause in between codes. Read all the codes until they begin to repeat themselves. Then describe the table below to gain the definition of every code.

For 1996 and Newer Vehicles

For 1996 and also newer (OBD2) vehicles, you deserve to visit a local auto parts supplier, together as advancement Auto Parts, the offers complimentary vehicle diagnostics. Most of these cost-free services are restricted to OBD2 vehicles and will offer you an prompt explanation that what the password is. Together always, it's a great idea to write these codes down and also do a small search virtual to see what other owners have run right into when receiving the exact same codes.

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The Most common Honda and Acura OBD1 Codes


Codes 0 and 11

Electronic manage module (ECM)

Code 1

Heated oxygen sensor A

Code 2

Oxygen content B

Codes 3 and also 5

Manifold absolute pressure

Code 4

Crank place sensor

Code 6

Engine coolant temperature

Code 7

Throttle place 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 pressure sensor

Code 14

Idle air manage 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 press 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 supply 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 cook oxygen sensor heater

Code 67

Catalytic converter system

Code 70

Automatic transaxle

Code 71

Misfire detected cylinder 1

Code 72

Misfire detected cylinder 2

Code 73

Misfire recognize cylinder 3

Code 74

Misfire detect cylinder 4

Code 75

Misfire recognize cylinder 5

Code 76

Misfire recognize cylinder 6

Code 80

Exhaust recirculation system

Code 86

Coolant temperature

Code 92

Evaporative emission control system

This article is accurate and also true come the best of the author’s knowledge. Contents is because that informational or entertainment purposes only and also does not substitute for personal counsel or skilled advice in business, financial, legal, or technological matters.