Swapped engine now codes P1768, P0700 and flashing D

KEYALADIS

MEMBER
2003 HONDA CIVIC
1.7L
4 CYL
2WD
AUTOMATIC
126,000 MILES

LX to EX. Swapped my motor to a jdm 17da (basically a 17da2) including an 03 ex wiring harness, ECU /w matching immobilizer, and ex exhaust. When I turned it over I got a flashing D light and these two codes P1768 and p0700 both relate to the transmission with p1768 being the “A/T Clutch Pressure Control Solenoid Valve Circuit”

I checked my inside dash fuse box for fuse 15 which I found empty so I threw a fuse on there, restarted my ecu and the code immediately came on with the flashing D

I’m having problems on continuing troubleshooting as I can’t find an accurate guide with the correct ECU terminals diagram

Any ideas on where to go from here?

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
47,631 POSTS

Hello,

Here is a guide to help you test the wiring and the engine and transmission wiring diagrams so you can see how the system woks:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

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