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FAQ: PocketScan Code Reader CP9125
How do I know if my vehicle is OBD I or OBD II on-board diagnostics equipped?
What are DLCs?
What is the difference between OBD I and OBD II cars?
What is OBD?
What are DTCs?
What are Generic OBD II codes?
What are Enhanced OBD II codes?
Common Generic OBD II (P0) Codes
Common GM OBD II (P1) Enhanced Codes
Common Chrysler OBD II (P1) Enhanced Codes
Will the Actron Code Scanners and/or Scan Tools retrieve Anti-Lock Brake or Airbag codes?
Which Actron Code Scanners and/or Scan Tools work on 1994 & 1995 GM vehicles?
Do I need adapters for different vehicles?
What are I/M Monitors?
What is MIL Status?
What is the Erase Codes function?
What are PIDs?
Common Ford OBD II (P1) Enhanced Codes
What are Pending Codes?
  What are Enhanced OBD II codes?
  Enhanced OBD II Diagnostic Trouble Codes (DTCs) are those codes unique to a vehicle of a specific year, make, model (and possibly engine size). Enhanced DTCs are assigned by the vehicle manufacturers to cover situations not already covered by a Generic DTC. Enhanced DTCs typically begin with 'P1', followed by a 3-digit number (i.e., P1404).

The SUPER AutoScanner Kit CP9150 and the SUPER AutoScanner CP9145 can retrieve both Generic and Enhanced DTCs to the tool. The Actron SPANISH OBD II AutoScanner CP9138S and OBD II Autoscanner CP9135 are not designed to retrieve these 'P1' codes but some vehicles (notably domestic and Asian) will often send these enhanced codes as well.

If you retrieve a 'P1' code, first check our online listings of Common GM OBD II Enhanced Codes, Common Ford OBD II Enhanced Codes or Common Chrysler OBD II Enhanced Codes. It's likely that your code will be defined on one of these lists.
If the definition of your code is not on either of those lists, you can use our online code lookup application:


You can also call our Technical Support department at 1-800-228-7667 (8:00 - 6:00 EST, Monday - Friday), or email your request to

Many of the larger public library systems keep a fairly complete inventory of factory service manuals in their reference sections. These manuals will contain code definitions and other troubleshooting information that can be very helpful.

To order a book containing a complete list of codes for GM, Ford, Chrysler, European or Asian OBD II vehicles, please visit
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