OBD II Code Reader
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The OBD II Code Reader


On Board Diagnostic Code Readers plug into automobiles generally newer than 1996 to retrieve trouble codes and then display the definitions on the code reader screen. These code readers are used by automotive technicians to read the manufacturer trouble codes and identify the component or system that is damaged or inoperable. They are time-saving, efficient, durable, and handy to have around if you work on cars. Dealerships, local auto repair, and hobbyists can benefit from an OBD II code reader or other scan tool.

An OBD II Code Reader comes in different sizes, shapes, and models with their own range of functions and accessories. Some work with a laptop, while others are handheld and portable. Find the one that fits your needs and be sure to read product reviews, specs, instructions, and return policies before making a purchase. OBD II code readers can range in price from around $75 to several hundred dollars depending on which model you buy.

A brief explanation of common OBD codes:
The first letter identifies the general system for this trouble code.  P = Powertrain, B = Body, C = Chassis, U = Undefined. The second number identifies whether the code is generic or a manufacturer specific code. 0 = Generic, 1 = Manufacturer Code. The third number is the particular sub-system. And the fourth and fifth numbers tell you about the specific problem when available. Check you users manual for the list of all codes.

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obd ii code reader pic
Equus 3100 Innova CanOBD2 Diagnostic Tool
$80
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Works on any 1996 and newer car, light truck or SUV
  • Foreign and domestic cars
  • Features unique patented all-in-one screen and LED display
  • Allows for quick State Emissions readiness check and drive cycle verification
  • Automatic refresh updates data every 30 seconds when connected to the vehicle
  • Easily verifies repair completion
  • Retrieves OBD2 DTCs: Generic Codes (P0, P2, P3, and U0) / Manufacturer Specific Codes (P1, P3, and U1)
  • Communicates with all OBD 2 protocols: C.A.N...




    • The Haynes OBD-II & Electronic Engine Management Systems Manual
    $16

    From Amazon


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