The pcm/ecm will disable the injectors if it isn't getting the "go" signal from the theft deterrent module.
Not sure a relearn is going to help, since the OP mentions the light staying on solid/no flashing.
Notice that in the relearn procedure below, there is no situation in which the security light never flashes at least momentarily (for the relearn to be working), see step #4 (responses).
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PASSLOCK REPROGRAMMING AUTO LEARN
IMPORTANT: If a new vehicle/powertrain control module (VCM/PCM) is being installed for the first the manufacturing enable bit will be set and the auto learn procedure may not be necessary.
The following procedure allows for anyone to reprogram the EVO/PASSLOCK module learned data code with any tools, other than the scan tool, when any of the following parts are replaced:
The EVO/PASSLOCK module
The PASSLOCK sensor
The VCM/PCM
The EVO/PASSLOCK module will set the DTC B3031 in the learn mode when entering the reprogramming procedure.
IMPORTANT: Erase the PASSLOCK related Diagnostic Trouble Codes (DTCs) that are stored in the VCM/PCM.
The following is the Auto Learn Procedure:
1. Insure the ignition key is in the ON position.
2. Clear all EVO/PASSLOCK module and VCM/PCM DTCs.
3. Momentarily rotate the ignition key to the CRANK position (Do NOT start the vehicle), then release it to the RUN position (Do NOT key OFF in the process).
4. Wait 10 minutes . Observe the SECURITY indicator. Refer to the following list for the appropriate responses:
-If the PASSLOCK sensor was replaced the SECURITY indicator will flash for the 10 minutes duration.
-If the EVO/PASSLOCK module was replaced, the SECURITY indicator will flash for a few seconds and then remain ON for the remainder of the 10 minutes duration.
-If the VCM/PCM was replaced with a new programmed VCM/PCM and connected to the vehicle for the first time, the vehicle will start and this procedure may not be necessary.
-If the replacement VCM/PCM was connected to any vehicle at any other time, even momentarily, the SECURITY indicator will flash for a few seconds and then remain ON for the 10 minutes duration.
5. The SECURITY indicator will transition from flashing to ON briefly to OFF after 10 minutes if remaining in the ignition ON position.
6. Turn the ignition switch to the OFF position and wait for 10 seconds .
7. Repeat steps 3-6 two more times. The new security code is ready to be communicated among the PASSLOCK sensor, EVO/PASSLOCK module and VCM/PCM. The new password is learned on the next ignition lock cylinder cycle from OFF to CRANK to ON (start attempt).
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A solid light might indicate a open circuit between the key (hall effect sensor) and the theft deterrent module, like the the theft deterrent module isn't flashing the light because it isn't seeing/reading the hall effect sensor.
Might want to start looking for open circuits (anomalies) near the spot you found your original short circuit/wiring problem ?
Guess it could be a few things though, bad theft deterrent module etc.
The best permanent thing to do is probably tune it out from the PCM/VCM, there may be a way to install a resistor to bypass the hall effect sensor but that would still require a working theft deterrent module.
Good luck.
