Thread: New CDL: Nancom has positions reversed??

Plugs are generally 1 way only. But your symptoms do point to it dont they?

Very common !. The Hawkeye has it the wrong way round aswell. Its not the car, its just the wrong way round in your computer.

Its highly likely that the CDL switch is smoked. To check, just take the 2 wires of the switch and join them together, if this puts your CDL light on then you know its the switch, if not then it will be your wiring. ( unlikely ). The switch should have continuity whe the CDL is engaged.

Cheers.

My Nanocom reads in reverse as well, but I have a defender. Maybe it's normal!
Otherwise it's fine.

Cheers

Nino.

Thanks for the response. Weird it should be reversed on the computer, though I think it must be more than that. The ABS light is on and the brake warning light, which I understand is normal to indicate that the car is engaged in low range. I'll have to get in and check the switch. What a pain to have to pull it all apart again!

I have also just installed a new SLABS ECU updated to the SRD500070. So there are lights and bells I am not used to.

From the schematics, shorting the red/pink wire at the transmission ECU (i.e. pin 13 of connector C0993) to ground, simulates the high/low switch.
This way you don't need to pull the switch out to check its function.
All the switch does is pull the red/pink wire to earth.
If things are okay when you do this, the chances are its not the switch that's the problem.
Hope this makes sense.

The extra chiming is a bit of a shock if you have been used to the earlier ECU's. I've grown to like the chiming when the diff lock engages or disengages.

The Nanocom isn't back to front as far as I'm aware.

- Ign on accessory gives incorrect values for the diff and cdl switches:


- with Ign at "II" you get the correct state of the switches:
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Auto in Reverse, reverse switch closed:
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cheers
Paul

I've only been on the disco seen for 12 months and they sure help fill spare time.

Finally got it sorted. I read some threads on cleaning plugs so i clr
Ean the plug above the hi/lonswitch. Then went into nano com and calibrated the ecu and set that up - saved settings. Bingo! Everything working fine. No warning lights. Tested the HDC etc. it took a while but now have the latest ecu and cdl. Ready to play!

Next job is the leaky rear diff pinion seal!

Yes. Nano com still has hi and low back to front.

Originally Posted by Reg

Yes. Nano com still has hi and low back to front.

What is your Nanocom showing?

The open/closed reflects the state of the ECU input - open should correlate with a low state (0 volts) and closed with high (5 or 12 volts). When the TC switches close (selecting low range or locking the CDL) it completes a circuit and the ECU input pin goes high. In high range and cdl unlocked both these switches should show as "open".