p0780 on new honda reman tranny
11-04-2009, 09:29 PM
#1
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p0780 on new honda reman tranny
Hello
I just installed a reman tranny from honda in an 01tl.
It came with all new solenoids, sensors and wiring nothing external was reused (except the bolts and wiring harness brackets).
First test drive,The car accelerated fine but when I eased up on the gas the first time I got a harsh down shift and instant cel p0780 and tcs lights up.Reset code and test again same exact result. I noticed after cel light comes on down shifting problem stops and tranny seems to shift normal.
I tested the shift solenoid valve A and clutch pressure control solenoid valves A and B and The resistance in within specs.and they click when voltage is applied.
P0780 also mentions possible hydraulic control system problem but the all info I found on the hydraulic control system is for the ABS?????
Anybody got any ideas??????
Oh yeah I use alldatadiy.com for the tech. info.
I just installed a reman tranny from honda in an 01tl.
It came with all new solenoids, sensors and wiring nothing external was reused (except the bolts and wiring harness brackets).
First test drive,The car accelerated fine but when I eased up on the gas the first time I got a harsh down shift and instant cel p0780 and tcs lights up.Reset code and test again same exact result. I noticed after cel light comes on down shifting problem stops and tranny seems to shift normal.
I tested the shift solenoid valve A and clutch pressure control solenoid valves A and B and The resistance in within specs.and they click when voltage is applied.
P0780 also mentions possible hydraulic control system problem but the all info I found on the hydraulic control system is for the ABS?????
Anybody got any ideas??????
Oh yeah I use alldatadiy.com for the tech. info.
11-04-2009, 09:54 PM
#2
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Id return the trans.
11-04-2009, 10:03 PM
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I forgot to add, When the tranny went out it had the codes p0740 TQ clutch, p0401 egr flow, p0730 incorrect gear ratio?, and p1750 clutch pressure control a&b. p0740 was on and of for about a year.
11-07-2009, 08:14 AM
#6
Senior Moderator
8 ounces shouldnt have caused that 
at least ive never seen it. Ive seen members with 2 quarts to much and not have any lights come on 
Glad its fixed. Though I will say that fluid had Nothing to do with your P0401 code.
at least ive never seen it. Ive seen members with 2 quarts to much and not have any lights come on Glad its fixed. Though I will say that fluid had Nothing to do with your P0401 code.
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