It's under the hood by the power distribution box but you don't need one of those scanners, you can get the same info for free... Go to the link below and follow the analog volt meter method but just make the jumper that's marked in there then jump in the drivers seat and watch the check engine light flash, it'll be 3 digit codes, there's a link in there to the descriptions of the codes.
The EEC-IV equipped engines use an older diagnostic system to monitor and report engine related malfunctions. This system is known as On Board Diagnostics (OBD-I). The Diagnostic Trouble Codes (DTC’s) are two or three digit numbers and can be … Continued
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