Pins #15 & #31 on "Black" connector to PCM
12-05-2006, 07:59 AM
#1
Registered User
Thread Starter
Join Date: Oct 2004
Location: La Porte, IN
Posts: 833
Pins #15 & #31 on "Black" connector to PCM
These are the Battery Feed Wires for the PCM, Where do they get their power from?
12-05-2006, 08:06 AM
#3
Registered User
Join Date: Feb 2004
Location: VA
Posts: 1,155
The wiring diagram for my vette says they come from "ECM fuse 1 (20A)"
12-05-2006, 08:08 AM
#4
Registered User
Thread Starter
Join Date: Oct 2004
Location: La Porte, IN
Posts: 833
the fuses in the block test good, but i dont have power at the PCM
12-05-2006, 08:10 AM
#5
Registered User
Join Date: Feb 2004
Location: VA
Posts: 1,155
Was there power coming into that fuse?
If not, then you have a wiring problem between the battery and fuse.
If yes, and the fuse is good, then you have a wiring problem between the fuse and the PCM.
If not, then you have a wiring problem between the battery and fuse.
If yes, and the fuse is good, then you have a wiring problem between the fuse and the PCM.
12-05-2006, 08:12 AM
#6
Registered User
Thread Starter
Join Date: Oct 2004
Location: La Porte, IN
Posts: 833
All of my fuses are good, i put the test light to the ground and then onto the fuse, and the light lights up. I go to the PCM wires to do this and the light does not illuminate. WTH?
12-05-2006, 08:14 AM
#7
Registered User
Join Date: Dec 2006
Posts: 17
I know this sounds dumb but do you have key on?
12-05-2006, 08:15 AM
#8
Registered User
Join Date: Feb 2004
Location: VA
Posts: 1,155
If so, then you might want to read what that guy said in post #5.
12-05-2006, 08:16 AM
#9
Registered User
Join Date: Feb 2004
Location: VA
Posts: 1,155
This is not keyed power.
Check out his other thread on the same subject:
http://web.camaross.com/forums/showthread.php?t=488443
Check out his other thread on the same subject:
http://web.camaross.com/forums/showthread.php?t=488443
12-05-2006, 10:56 AM
#11
Registered User
Join Date: Dec 1969
Location: Little Rock, AR
Posts: 27,709
Not sure why you started another whole thread on this subject. I told you where the power came from in the other thread (reiterated by quote in post #2 of this thread). You don't seem to want to listen.
12-07-2006, 12:14 PM
#12
Administrator
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 70,666
You now have 4 threads on the lack of power to the PCM and 3 threads on the fuel pump schematic.
NO MORE DUPLICATE (or triplicate or quadrupicate) THREADS!
You have been warned.
NO MORE DUPLICATE (or triplicate or quadrupicate) THREADS!
You have been warned.
Thread
Thread Starter
Forum
Replies
Last Post
techstar
LS1 Based Engine Tech
8
08-06-2015 11:20 AM
88IROC_Z
Computer Diagnostics and Tuning
2
07-22-2015 11:38 PM
gelbza
General 1967-2002 F-Body Tech
3
07-12-2015 08:10 AM