Ford Crown Victoria/Grand Marquis 1989-1998

Reading Codes


See Figure 1

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Fig. Fig. 1: When using a scan tool, make sure to follow all of the manufacturer's instructions carefully to ensure proper diagnosis

The EEC-V equipped engines utilize On Board Diagnostic II (OBD-II) DTC's, which are alpha-numeric (they use letters and numbers). The letters in the OBD-II DTC's make it highly difficult to convey the codes through the use of anything but a scan tool. Therefore, to read the codes on these vehicles it is necessary to utilize an OBD-II compatible scan tool.

Since each manufacturers scan tool is different, please follow the manufacturer's instructions for connecting the tool and obtaining code information.