300bhp/ton

300bhp/ton

Well-Known Member
Can anyone tell me exactly where I can find these ECU's and any other bits of wiring/connectivity I should be checking?

1999 4.6 Thor Range Rover p38

-Wabco D ABS ECU (can't connect with Nanocom, although another diagnostic tool called Pscan does)

-Hella CC (also never been able to get it to connect/communicate with the Nanocom)

-BECM (used to access this loads to disable the EKA when having key issues previously, now also getting unable to communicate error on the Nanocom)

For reference the Nanocom will connect and work with all the other menu options e.g. Motronic, Gearbox, Airbag, EAS & HEVAC).

The cable looks like new still (supplied with Nanocom), Nanocom looks like new as does the OBDII connecter on the vehicle.

Thanks.
 
300bhp/ton said:
Can anyone tell me exactly where I can find these ECU's and any other bits of wiring/connectivity I should be checking?

1999 4.6 Thor Range Rover p38

-Wabco D ABS ECU (can't connect with Nanocom, although another diagnostic tool called Pscan does)

-Hella CC (also never been able to get it to connect/communicate with the Nanocom)

-BECM (used to access this loads to disable the EKA when having key issues previously, now also getting unable to communicate error on the Nanocom)

For reference the Nanocom will connect and work with all the other menu options e.g. Motronic, Gearbox, Airbag, EAS & HEVAC).

The cable looks like new still (supplied with Nanocom), Nanocom looks like new as does the OBDII connecter on the vehicle.

Thanks.
Click to expand...
Wabco behind the glove box
Becm under drivers seat
Hella is the cruise one? Isn't that part of the control unit that has the bellows control? Not sure
 
kermit_rr said:
2nd screen i think.. under EAS?
Click to expand...
i wasnt far off...
upload_2023-4-3_8-53-38.png
 
kermit_rr said:
i wasnt far off...
View attachment 285530
Click to expand...

I'll be damned. Not noticed that before but then I only have the diesel and GEMS modules so maybe I cannot see it.

I'd imagine that must be must be above the throttle pedal behind that panel or in the engine bay near the engine ECU. RAVE must have a picture?
 
I think it's only in the Motronic section ? The cruise ECU was changed around the same time they went from GEMS to Thor, so no point in having it in the other sections.

Licensing is engine ECU only, so all other modules should work on any Nanocom.
 
pwood999 said:
I think it's only in the Motronic section ? The cruise ECU was changed around the same time they went from GEMS to Thor, so no point in having it in the other sections.

Licensing is engine ECU only, so all other modules should work on any Nanocom.
Click to expand...
yep on the emulator, HELLA CC only shows under motronic (Thor), not GEMS or Diesel
 
If the Nanocom cannot connect to multiple modules it's extraordinarily unlikely the multiple modules have gone bad. It's far more likely that socket &/or wiring that the Nanocom connects to have gone bad with corrosion.
 
nigelbb said:
If the Nanocom cannot connect to multiple modules it's extraordinarily unlikely the multiple modules have gone bad. It's far more likely that socket &/or wiring that the Nanocom connects to have gone bad with corrosion.
Click to expand...
Noted, but how and where would you check this? The vehicle is remarkable clean in regards to corrosion. Even down to the fuse panel and relays under the bonnet looking like new, which I know can also be a different issue some p38's suffer with.
 
pwood999 said:
I think it's only in the Motronic section ? The cruise ECU was changed around the same time they went from GEMS to Thor, so no point in having it in the other sections.

Licensing is engine ECU only, so all other modules should work on any Nanocom.
Click to expand...

Apart from wabco C if yours is Thor.
 
300bhp/ton said:
Noted, but how and where would you check this? The vehicle is remarkable clean in regards to corrosion. Even down to the fuse panel and relays under the bonnet looking like new, which I know can also be a different issue some p38's suffer with.
Click to expand...
if the pollen filter/scuttle has ever leaked then you'll get water in the OBD port eventually
 
300bhp/ton said:
Noted, but how and where would you check this? The vehicle is remarkable clean in regards to corrosion. Even down to the fuse panel and relays under the bonnet looking like new, which I know can also be a different issue some p38's suffer with.
Click to expand...
Corrosion in the OBD port is common, sometimes so bad that the wires actually corrode off on the back.
 
Pin 16 is 12V and 4 & 5 are ground. (must be ok, or Nanocom would not power on)
Pin 14 is SRS ECU
Pins 7 & 16 are for everything else, BECM.

BECM can be finicky to connect sometimes, as can HEVAC. Depends if ignition is on or off !!

Nanocom Guide says:
upload_2023-4-4_18-10-23.png


upload_2023-4-4_18-6-3.png



upload_2023-4-4_18-5-34.png
 
pwood999 said:
Pin 16 is 12V and 4 & 5 are ground. (must be ok, or Nanocom would not power on)
Pin 14 is SRS ECU
Pins 7 & 16 are for everything else, BECM.

BECM can be finicky to connect sometimes, as can HEVAC. Depends if ignition is on or off !!

Nanocom Guide says:
View attachment 285598

View attachment 285596


View attachment 285595
Click to expand...
Socket pinouts are:

Pin 1...Grey & Red wire EAS Timer
4...Black Ground
5...Black & Purple Ground
7...Pink & Red Becm connector C255
11..White & light Green Airbag (SRS) ecu
12..White & Pink EAS ecu
14..Yellow & Green Airbag (SRS) ecu
15..Light Green & Red Becm connector C255
16..Brown Permanent 12v+ supply from Fuse 33
 
Some of the ECU's you can connect to at any time, while others you can only communicate with when the ignition is on has always been my experience.
e.g. Wabco is only livened up when the ignition is on because its a pre-req for a moving vehicle that needs ABS.
 
DanClarke said:
Some of the ECU's you can connect to at any time, while others you can only communicate with when the ignition is on has always been my experience.
e.g. Wabco is only livened up when the ignition is on because its a pre-req for a moving vehicle that needs ABS.
Click to expand...
I'm sure I needed the cruise button lit up to connect to HELLA CC
 
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