hi Sean

Using a Diagnostic Jumper to Diagnose
the ECI System
If you do not have access to a laptop computer, it is still
possible to access the diagnostic trouble codes stored
in the memory of the Spectrum system ECM using a
diagnostic jumper and the malfunction indicator lamp.
With the key OFF, connect the diagnostic jumper to the
DLC located near the ECM. The jumper will connect
diagnostic pins A and D. Turn the ignition ON but do not
start the vehicle. The malfunction indicator lamp (MIL)
will begin to flash.
The MIL displays three digit codes by flashing the first
digit, pausing, then flashing the second digit, pausing,
and then flashing the third digit. There will be a long
pause between codes. For example, a code 143 would
be one flash followed by four flashes followed by three
The MIL will first display a 166 three times. Code
166 indicates that the ECM based diagnostic routines
are functioning. Then, any Diagnostic Trouble Codes
stored in memory will display three times each. The
MIL will then start over with the code 166. If the vehicle
is started while the diagnostic jumper is in place, the
MIL will flash rapidly.
Diagnostic Trouble Codes may be cleared from the system
ECM memory by moving the ignition key to the OFF
position and removing the (F2) system battery fuse for
at least 15 seconds.
NOTE: This will erase all of the memory in the computer

try this and let me know what comes up