Howcan i get trouble codes without access tool? i have all shop manuals

Have you had it checked for diagnostic trouble code's ? Why would you change a sensor without checking code's am viewing sensor data parameters on a professional scan tool ? If you don't know what i'm talking about ,your best bet , take it to a qualified repair shop.

year vehicle manufactured? if 1996 & later, OBDII scanner to be plugged into a port (typically, should be near the steering column, under the dash).
older models may have OBDI (no standard location of port) scanner specific to the make of the vehicle. search the web, on how to read manually (or without scanner) the code by counting the number of blinks of the MIL (malfunction Indicator light) (aka check engine, or service engine soon).




Autel MaxiScan MS309 OBD II Code Reader Scan Tool

When you get OBD Codes-- you do not change parts

You use the codes & trouble charts-- to component test--
the system-- that set the fault code,to find a problem

If you found no problem, or no tested & failed part,why
change it?

Without factory service & diagnostic manuals & professional
scan tool software & wiring diagrams, your at the mercy of
a repair shop,because you do not have the info or knowledge
needed, to work on a vehicle

Not if your vehicle is newer than 1996, for an OBD II system you have to access the ECU with a scan tool.

You can have trouble codes without a MIL lamp
light on the dash

Need professional scan tool software to access
various modules to check for the codes

Need Professsional Scan Tool to get Manufacturer
Body Codes, such as SRS System (air bags)
Then you need factory manuals to find codes &
how to trouble shoot the system
Your only option is to have a repair shop check it out

Try this Turn the key on ( don not try to start), turn the key off, turn the key on, turn the key off, turn the key on and leave it on. If the check engine light starts to flash start counting the number of flashes. Those will be the codes. For about $50 you can by a code reader which will give you OBDII codes which may make it easier to figure out the problem. Post the codes and we'll see what we can figure out. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Your vehicle is OBD2 compliant and you will need a scanner to access the code. Some auto parts stores will access the code for you free of charge.

I don't subcribe to this idea personally but disconnecting the battery on that truck (negative cable) will clear the codes. There is no method for this vehicle (like the old GM's) to get the code meanings or #'s without at least a hand scanner. You can pick one up fairly inexpensively

on my 86 lincoln towncar yhats a limo,i was told by a lincoln shop forman that that year doesnt tell you any thing about the condition of the car it has a tier 3 computer that was a experment model that was only used one year.you would be better off taking it to a shop with a good scope to check out your car.