FAQ Library

Diagnostic Trouble Codes

Also known as DTC's

OBD-II General Information
What is OBD-II? On-Board Diagnostic systems are in most cars and light trucks on the road today. During the '70s and early 1980's manufacturers start...
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GM Driving Cycle
First, do a complete driving cycle to verify codes. If you have disconnected the battery or cleared the codes do 5 complete driving cycles. A complet...
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DTC Categories
There are two categories of DTC's that apply to OBDII. Type A 1. Emissions related. 2. Requests illumination of the MIL after one failed driving c...
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List of Manufacturer Codes
This article is a list of possible Manufacturer DTC's. For information on how to diagnose and repair a particular DTC, please refer to a service manua...
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List of Body DTCs
This article is a list of possible Body DTC's. For information on how to diagnose and repair a particular DTC, please refer to a service manual specif...
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List of Chassis DTC's
This article is a list of possible Chassis DTC's. For information on how to diagnose and repair a particular DTC, please refer to a service manual spe...
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List of Powertrain DTC's
This article is a list of possible Powertrain DTC's. For information on how to diagnose and repair a particular DTC, please refer to a service manual ...
   01-21-2006   Replies: 0