When your "Check Engine" light comes on in your 92-93 truck, you can get the trouble codes of it yourself by using your ignition. Simply turn the key (without starting the truck) "on, off, on, off, on" and leave it in the on position. The codes will be displayed by the check engine light blinking. The light blinks out the first digit of the code, stops for a second, then blinks out the next digit, all the codes only have 2 digits. If the code in your truck was say code number 15, it would be displayed as one blink, a pause, then 5 blinks. If there is another code that one would be displayed after the 1st. When all the codes have been displayed code number 55 will come up. This code means all the codes have been read.

11 No Crank Speed sensor signal during cranking
12 Battery connection disturbed within the last 50 starts
15 No signal from VSS (Auto or Cruise Control equipped only)
22 Coolant temp sensor shorted or open (Auto only)
23 Air temp sensor shorted or open
24 TPS shorted or open (Auto only)
33 A/C clutch relay shorted or open
34 Cruise control shorted or open (cruise control equipped only)
41 Generator field not switching properly
42 ASD relay (charging circuit supply) shorted or open, or no ASD voltage at PCM
45 OD solenoid shorted or open (Auto only)
46 Charging system voltage too high
47 Charging system voltage too low
53 Internal PCM failure
62 same
63 same

 

awesome right up bobby

 

thanks bobby for this info

 

throw that in the sticky

 

Wow and I heard these trucks didn't have codes.I just tried it on my truck because I don't have overdrive and threw 3 codes 12,23 and 24 awesome info,thanks.

 

I just went outside and tried that and it didn't work. My check engine light is on most of the time along with the wait to start. Randomly, the starter relay on the fender starts chattering and the engine & wait lights flash on and off at the same time. What are your thoughts?

 

Mine was doing the same thing until I changed the pcm.I am not saying that is your problem but it may be worth checking it to make sure its working properly.I took mine to an auto parts store they sent it out and tested it found out it was bad.Maybe someone with more knowledge will chime in and help.Good luck.

 

Thank you. I guess I need to change my name to Earl and post a photo of a fat sweaty guy in a Ram with STACKS and truck nuts and ringside tickets to WWF.
I think you're right about the PCM because there is also an issue with my A/C clutch: sometimes it won't engage. I'll have it looked at tomorrow.

 

all the problems you have were identical to mine.
whats this mean:Thank you. I guess I need to change my name to Earl and post a photo of a fat sweaty guy in a Ram with STACKS and truck nuts and ringside tickets to WWF

 

I've been using this site for a couple of months to help me when I have problems with my truck. I guess I just never noticed how mean the people are in here.