QuestionQUESTION: I have a 1994 Cadillac Concours (Deville)
I had to take it in to find out why the srvice engine soon comes on and they say it is a elec problem, here is the codes that come up 47,83,107,137, they want to keep it a day... so please tell me if their taken me for a ride.
ANSWER: P047 = Instrument panel control )IPC) to computer (PCM) line problem.
P083 = 24x signal high.
P107 = Instrument panel control )IPC) to computer (PCM) data problem.
P137 = Loss of Automatic braking system (ABS) to Traction control system (TCS).
What you need to do is CLEAR all these codes from the computer and see which ones return.
Perform this test.
1. Ignition key ON. Engine OFF.
2. Simultaneously push and hold the OFF and WARMER (^) buttons on your climate control panel for 3 seconds and release them.
3. Diagnostic codes such as above will appear with the word HISTORY or CURRENT for each code.
4. The codes will stop when you see PCM?
5. Push and release the HI(^) button and you will see PCM DATA?
6. Push and release the LO(v) button and you will see PCM DATA?
7. Continue to push and release the LO (v) button until you see PCM CLEAR CODES?
8. Push and release the HI(^) button until you see PCM CODES CLEAR.
9. Turn OFF the ignition and wait 3 minutes and try and start the car. If the car starts and the light comes back ON, Turn OFF the car and repeat steps 1 thru 3 and let me know what codes you get and if they are HISTORY or CURRENT.
10. When you see PCM?, Turn OFF ignition key.
11. Let me know what codes you get and if they are HISTORY or CURRENT.
---------- FOLLOW-UP ----------
QUESTION: this is what happen when it did what you told me what to do.
P047 History,P107 History,No IPC Code, P83 History,P137 History, A047 Current, No Sir Codes, T072 History,No Russ, PCM?
ANSWER: You did not follow the directives correctly . If you had, You would NOT have any HISTORY CODES.
Try it again and follow these directives EXACTLY:
1. Ignition key ON. Engine OFF.
2. Simultaneously push and hold the OFF and WARMER (^) buttons on your climate control panel for 3 seconds and release them.
3. Diagnostic codes such as above will appear with the word HISTORY or CURRENT for each code.
4. The codes will stop when you see PCM?
5. Push and release the HI(^) button and you will see PCM DATA?
6. Push and release the LO(v) button and you will see PCM DATA?
7. Continue to push and release the LO (v) button until you see PCM CLEAR CODES?
8. Push and release the HI(^) button until you see PCM CODES CLEAR. WAIT 3 seconds and then proceed to 9.
9. Turn OFF the ignition and wait 3 minutes and try and start the car. If the car starts and the light comes back ON, Turn OFF the car and repeat steps 1 thru 3 and let me know what codes you get and if they are HISTORY or CURRENT.
10. When you see PCM?, Turn OFF ignition key.
11. Let me know what codes you get and if they are HISTORY or CURRENT.
---------- FOLLOW-UP ----------
QUESTION: well I went back out and did what you asked me to do the frist time (sorry) when I got to step 6 pcm outputs not pcm data, then from there nothing changed. same codes
AnswerPerform procedures 1 thru 5 then do this:
6. Push and release the LO(v) button and you will see PCM OUTPUTS
7. Push and release the LO (v) button and you see PCM OVERRIDE?
8. Push and release the LO(v) button and you see PCM CLEAR CODES.
9. Push anr release the HI(^) button and you will see PCM CODES CLEAR. wait 3 seconds and turn OFF the key.
9. Wait 3 minutes and try and start the car. If the car starts and the light comes back ON, Turn OFF the car and repeat steps 1 thru 3 and let me know what codes you get and if they are HISTORY or CURRENT.
10. When you see PCM?, Turn OFF ignition key.
11. Let me know what codes you get and if they are HISTORY or CURRENT.
