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There are no codes for this. The issue may be that the gem is getting a driver door open signal or the gem itself is bad. I got a used gem at a salvage yard for $20 recently, but make sure its not the door switch first. You can pull the connector off the switch and use an ohmmeter to see if the wire is grounded. If it is, trace it to the gem to find where it is getting cut into.
Fusible link blown ? With a voltmeter check for B+ voltage at the heavy gage wire on the back of the alternator .Is the charge indicator light lit on the instrument cluster . Do you know what a wiring diagram is ? Free wiring diagram here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size. Under system click engine ,then under subsystem click charging . Click the search button then the blue link . Watch video on youtube checking alternator electrical .Power & ground ! Functions of an Alternator in vehicle How to Test an Alternator
if you have replaced the clutch , t will be a clutch plate put in back to front
If it is hydraulic clutch ,it will be a master cylinder or slave cylinder problem
if it is cable clutch , it will be a failed clutch cable
Brake/Shift Interlock System
The shift interlock system prevents the shifting from PARK (P) (when the ignition switch is in the RUN position) unless the brake pedal (2455) is depressed. The interlock system consists of an electrical solenoid mounted at the base of the steering column (3C529). If the ignition switch is in the RUN position, the solenoid has continuous power supplied unless the brake pedal is depressed.
Remove steering column as outlined in Section 11-04A or Section 11-04B .
Unclip wire terminal from solenoid.
Remove insert plate and solenoid by removing three retaining screws.
Pry off clip.
NOTE: The clip which retains the solenoid to the insert plate should not be replaced for service. The clip's sole purpose is an assembly aid for the assembly plant.
Position insert plate/solenoid assembly to the steering column and tighten the retaining screws.
Install the steering column in the vehicle as described in Section 11-04A or Section 11-04B .
Maybe you have a bad speed sensor, its a shot in the dark but that sensor controls a lot of functions like the ABS, speedometer, check engine light can come on, automatics will shift hard or may not shift at all, o/d will flash. The video below shows a 1999 ford ranger automatic but if you check you might have the same sensor.
You have a wire that is grounding out some where. Check the battery cables and make sure they are tight on both ends and no nicks or cuts where they contact the car body or engine. Also check the starter and make sure that it is tight and nothing is touching the solenoid where the battery cable is connected.
You could have a bad wire going to the sensor or the PCM is not configured to the tire size that you have on the truck. So if you have put bigger tires on you truck, it may be causing the problem.
I hope this helps you locate the problem