Hi

I have a 1995 NL Fairlane that has decided to play funny buggers after changing power steering pump.
Now the interior light no go when open door, Smart lock light flashes & beeps, motor starts but wont start if put interior light switch on (no interior light comes on either) & trans in limp mode. Tried different batteries as mine not that good & tried leaving ignition on for half hour which killed battery but went to turn over as usual.

Help please