2012 D40 no power to auto transmission

[aust303]

I carried out fault test on transmission harness no power at all not even standby power 1and2
Any ideas brains trust?

 

[Old.Tony]

I'd imagine it's a fuse in the engine bay, probably the black box just behind the battery.

 

[aust303]

I'd imagine it's a fuse in the engine bay, probably the black box just behind the battery.

Thanks mate
Checked that a few times over the corse
it seems to be the wires from plugs E6,E7 and E15,E13 in the drivers side engine bay fuse box all the wires to the transmission plug F 36
From transmission memory backup Red 1 and 2 goes to plug E15 blank
4 grey K line goes to orange E7
6 yellow power supply goes to black ground E7 (yep)
7 light green backup goes to blank
9 brown starter relay seem to be correct
And all other wires in the 2 plugs
Ive been using schematics that don't match
Been to a few wreckers to find what goes where and no luck , Spanish models all different
Any help would be appreciated

 

[Old.Tony]

2012 was part of the transition from the RE5 box to the RE7 so it's no surprise that there are a couple of variations in wiring. This continued until 2015 models, as far as I understand, so if you look at any 2011-2014 V9X model they SHOULD be similar, the YD25s are different and don't even have the E7 connector - but E7 also connects to the electronic throttle actuator (F8 - understandable for TCM control).

These also pass into the IPDM/ER which has a fuse for the TCM. This fuse is inside the IPDM/ER, it's 10A and located beside the cooling fan relay - 2nd from the end nearer the open space (the side with the chamfer).

 

[aust303]

2012 was part of the transition from the RE5 box to the RE7 so it's no surprise that there are a couple of variations in wiring. This continued until 2015 models, as far as I understand, so if you look at any 2011-2014 V9X model they SHOULD be similar, the YD25s are different and don't even have the E7 connector - but E7 also connects to the electronic throttle actuator (F8 - understandable for TCM control).

These also pass into the IPDM/ER which has a fuse for the TCM. This fuse is inside the IPDM/ER, it's 10A and located beside the cooling fan relay - 2nd from the end nearer the open space (the side with the chamfer).

Thanks for taking time Tony
Makes sense, Thought I was in a parallel universe.All relays and fuses seem good
( 3 auto sparkys, 3 mechanics and 2 gearbox specialist later) I will try sourcing something for a VX9
Im still unsure about the plugs
(E7)yellow one-side of plug black opposite (F8) - grey in orange opposite - light blue in blank opposite, light green in blank opposite
And on the other plug red in and blank opposite
Would it be common for the transmission wires (light blu, red,light green )to come up from transmission to a plug point that is blank on the opposite side , not to mention main power yellow from transmission to black earth that goes to the front near battery

 

[aust303]

Thanks Tony
Makes sense, Thought I was in a parallel universe.All relays and fuses seem good
( 3 auto sparkys, 3 mechanics and 2 gearbox specialist later) I will try sourcing something for a VX9
Im still unsure about the plugs
(E7)yellow one-side of plug black opposite (F8) - grey in orange opposite - light blue in blank opposite, light green in blank opposite
And on the other plug red in and blank opposite

I have checked IPDM fuses all good at the mo, but thanks again mate, your info will help me alot

 

[Old.Tony]

Thanks for taking time Tony
Makes sense, Thought I was in a parallel universe.All relays and fuses seem good
( 3 auto sparkys, 3 mechanics and 2 gearbox specialist later) I will try sourcing something for a VX9
Im still unsure about the plugs
(E7)yellow one-side of plug black opposite (F8) - grey in orange opposite - light blue in blank opposite, light green in blank opposite
And on the other plug red in and blank opposite
Would it be common for the transmission wires (light blu, red,light green )to come up from transmission to a plug point that is blank on the opposite side , not to mention main power yellow from transmission to black earth that goes to the front near battery

Nissan - as you might think - aren't in the habit of creating all this wiring and not having it go anywhere. Something in there isn't right, I wonder if you can spot any sign of the harness being modified/cut and taped up? Could someone have done this deliberately to cause grief? Maybe they were trying a modification to the car? Or - worse thought - they've put in the harness from a different model?

I'm struggling here too!