Quote:
Originally Posted by Oldmactech
Ok, got to the heart of the matter. I pulled the engine electronics fuse carrier ( underneath the right side windshield wiper and in a box with the TCM and the ECM). The 30A fuse in slot four was burnt.
Fuse 4 is Automatic transmission control module (AGS) (A7000)
And the oxygen sensors heaters. (I got getting an Oxygen sensor code also so that is confirming.
Replaced the fuse…..no joy. I’m going to recheck it but on first check after startup, the fuse was good. Have drive 10 miles since so worth a check. (Drive reasonably normally)
Does this indicate a bad TCM or something short in the trans? Or something else entirely?
One other symptom. On startup the P of PRND is brightly lit but shortly goes to dim as the other 3 letters.
Thanks.
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Fixer was having a similar issue. His blew the fuse up front and it was because of his O2 sensor wiring shorting. He posted about it on the E53 forum. You should probably check your wiring as well.
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2003 E53 4.6is, titanium silver, black Nappa interior
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10-27-2021, 11:32 AM
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