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I have code 710 on my 03 Honda crv i change out the sensor with a known good one.i have another crv to use parts from also running.i also tried to use other ECM still problem persist,tried to use spare wire harness unhooked all transmision conections only .left the engine one alone .so,the problem still persist.The crv was in a fender bender I rear ended other car,so I was thinking COULD THE TRANNY BE SHOT"ALSO have shift code p0758,p0763 all electrical?
Vehicle: Honda 2003 crv 2.4L

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by (13.4k points)

P710 Problem in ATF temperature sensor circuit

P758 Problem in shift solenoid valve B circuit

P0763 Problem in shift solenoid valve C circuit

When you set a shift solenoid code you will set a P0710 code, This  would not be a faulty transmission, well just not yet hopefully,Faulty transmission are internal mechanical problem like P0740 TCC circuit or solenoid which is always internal hydraulic problems or gear shift error codes, For the shift solenoid you are either missing power or ground, Use this diagram make a new wire to  your circuit to the ECM and bridge a circuit for its ground and retest, you have wiring problem

by (100 points)
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Thanks for information today I dug right into it. I was debating to drop tranny or go with my gut feeling electrical, and I decided changing harness was simpler to do first. Besides like you said no internal codes so must be electrical. So I changed my wire harness and low and behold problem seems to be solved no blinking D light no CEL light. Keep in mind I never started the car yet but cleared codes and never came back on. Hope problem solved been 2 weeks so far spent on problems. But I  believe you are right on point power or a ground wire I seen the diagram you posted but I don't understand what you mean by circuit and jumping wire. I am mechanic inclined but the electrical side iam dumb founded. Would like to find still where the problem is if it's not to much trouble mahalo  (thanks)
by (13.4k points)
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Most of the time instead of digging the wires out of the harness it easier just to make a lead to where it goes to and eliminate the original wire, These breaks mostly occurs at its junction connection, just disconnecting and reconnecting sometimes resolve the issue , but if it does not, just replace the its wire to where where it goes it easier than the whole harness, By the way I'm in Hawaii , on the beach
by (100 points)
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Aloha welcome to Hawaii, well I changed the whole harness because I had a extra harness laying around. Start car up! No D blinking light, was a frustrating 2 week trying to solve problems. I have only about 3yrs experience in auto trade, I am also self taught got tired of getting rip off by broke dick mechanics here in Hawaii. Give me a call i can help you out in finding goodies iam on oahu island 808 four seven six nine 529 Desmond mahalo

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