Automatice transmissions codes
09-27-2004, 09:10 AM
#1
Staging Lane
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Automatice transmissions codes 
I ahve finally got my truck to run a 1994 4x4 fullsize chevy with a 5.3 lt out of an 03 tahoe and an automatic transmissions I used the factory harness from the motor and my question is I am getting a lot of codes from my transmission and I was wondering if I didint have power to something? and if anybody could help me out Thank you Daniel 
09-27-2004, 05:28 PM
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Staging Lane
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Originally Posted by patriot68
what codes???
check the E(pink) wire at the trans. it should always have 12 volts with the key on..it shouldnt drop below 9.5 volts during start up...
check the E(pink) wire at the trans. it should always have 12 volts with the key on..it shouldnt drop below 9.5 volts during start up...
the codes are
p0740
p0753
p0758
p01860
09-27-2004, 07:48 PM
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all these codes at once ar mostly caused by an electrical problem..check the the outside and the internal trans harness for exposed broken wires...
if both look good get a wiring diagram for the trans and check the crimp at circuit 1020...bad crimp on at this circuit is very common
could be caused by a bad ecm as well...
if both look good get a wiring diagram for the trans and check the crimp at circuit 1020...bad crimp on at this circuit is very common
could be caused by a bad ecm as well...
