ewo1
SR. MEMBER - 99 Amtran RE DT466E HT 250HP-Md3060
Now that's some serious troubleshooting !!!
on the TCM side, unhook the TCM cable and recheck the resistance values.
Measure the resistance from that side and then again from the diagnostic port. Do they match up?
If they match up then I might (loosely might) suspect the TCM resistors.
You can also unplug the data wires at the three locations and test all the wires for continuity.
If you have a broken wire or shorted wire, doing a loop back test will indicate any issues.
this is what I had to do when my tranny push pad went dark. I used paper clip to bridge the wires on one end and loop tested for continuity on the other. this would be a good time to also stress test the data link wires...all of them.
on the TCM side, unhook the TCM cable and recheck the resistance values.
Measure the resistance from that side and then again from the diagnostic port. Do they match up?
If they match up then I might (loosely might) suspect the TCM resistors.
You can also unplug the data wires at the three locations and test all the wires for continuity.
If you have a broken wire or shorted wire, doing a loop back test will indicate any issues.
this is what I had to do when my tranny push pad went dark. I used paper clip to bridge the wires on one end and loop tested for continuity on the other. this would be a good time to also stress test the data link wires...all of them.
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