No interior power ammater wire not getting power only when the key is in acc
The ammeter is a simple circuit, not complicated. First, do you have a factory service manual? If not run over to MyMopar.com and download one, free
Next, this article gives a simplified diagram of the ammeter circuit
http://www.madelectrical.com/electricaltech/amp-gauges.shtml
Functionally, (follow the RED) power comes from the battery to the big stud on the start relay, through the fuse link, through the bulkhead connector and to and then through the ammeter, out on the BIG BLACK. Power branches off from the BIG BLACK a few inches away, behind the cluster, at the welded splice. From there, power is routed to the headlight switch ONLY for the headlight power, to the key switch, and to the fuse panel hot buss, and depending on year / model, maybe a couple of other devices
FIRST CHECK YOUR VOLTAGE with a LOAD on that circuit. Check your voltages with the light switch clear "out" and with the key in ACC. If you took your readings with everything off, a bad connection could have "fooled" you.
Identify the "BIG RED" ammeter wire going into the firewall on the engine side and check there. How to check the other end? IF YOU HAVE power at the BIG RED at the bulkhead connector, AND NOT AT the output stud of the alternator, there is a break in there. Maybe the RED terminals in the bulkhead connector. Maybe at the ammeter. AND RARE BUT it HAS HAPPENED, a failure of the WELDED SPLICE
NO. Learn to troubleshoot. You may have led yourself down the wrong path, accidently
The ammeter is a simple circuit, not complicated. First, do you have a factory service manual? If not run over to MyMopar.com and download one, free
Next, this article gives a simplified diagram of the ammeter circuit
http://www.madelectrical.com/electricaltech/amp-gauges.shtml
Functionally, (follow the RED) power comes from the battery to the big stud on the start relay, through the fuse link, through the bulkhead connector and to and then through the ammeter, out on the BIG BLACK. Power branches off from the BIG BLACK a few inches away, behind the cluster, at the welded splice. From there, power is routed to the headlight switch ONLY for the headlight power, to the key switch, and to the fuse panel hot buss, and depending on year / model, maybe a couple of other devices
FIRST CHECK YOUR VOLTAGE with a LOAD on that circuit. Check your voltages with the light switch clear "out" and with the key in ACC. If you took your readings with everything off, a bad connection could have "fooled" you.
Identify the "BIG RED" ammeter wire going into the firewall on the engine side and check there. How to check the other end? IF YOU HAVE power at the BIG RED at the bulkhead connector, AND NOT AT the output stud of the alternator, there is a break in there. Maybe the RED terminals in the bulkhead connector. Maybe at the ammeter. AND RARE BUT it HAS HAPPENED, a failure of the WELDED SPLICE