Where did you get the 12v from?
What about the power to the TMC module? If it was the same feed maybe it's not getting power.
When my TMC module was on the fritz I had no radio reception. Dredged the depths of my addled brain to remember that.
RDS-TMC connection: RDS-TMC connection is faulty
Re: RDS-TMC connection: RDS-TMC connection is faulty
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: RDS-TMC connection: RDS-TMC connection is faulty
Shoppinit wrote:What about the power to the TMC module? If it was the same feed maybe it's not getting power.
Lightbulb moment! Off to give that a try...
Pin 6 or Pin 12??Re: RDS-TMC connection: RDS-TMC connection is faulty
It's pin 6, so I ran my meter across pin 6 and earth and get 0.5v (with the ignition on and off) when it should 12v.
So i ran a new lead with a measured 12.7v to the RDS-TMC unit, pin 6 - no difference. The RNS-d still reports not finding it.
I didn't have a lot time this evening but I'm going to check the other power supplies to the RNS-d and also try one of the other spare RDS-TMC units i still have (now I know there was no 12v supply) but I won't be able to do this until the weekend...
So i ran a new lead with a measured 12.7v to the RDS-TMC unit, pin 6 - no difference. The RNS-d still reports not finding it.
I didn't have a lot time this evening but I'm going to check the other power supplies to the RNS-d and also try one of the other spare RDS-TMC units i still have (now I know there was no 12v supply) but I won't be able to do this until the weekend...
Re: RDS-TMC connection: RDS-TMC connection is faulty
Interesting.
I think it's worth finding out why you haven't got 12V to the RNS-D. I'll have a look at the wiring diagrams. Will be necessary to trace back. There might be other stuff affected by this fault.
I think it's worth finding out why you haven't got 12V to the RNS-D. I'll have a look at the wiring diagrams. Will be necessary to trace back. There might be other stuff affected by this fault.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: RDS-TMC connection: RDS-TMC connection is faulty
So the +12 for SAFE, TV Tuner, bass speaker amps and TMC module all come from Fuse 37. I'm guessing the fuse is OK. It'll be interesting to see why you aren't getting 12V from there.
I wonder if there is an earth problem. They all share the same earth, I believe.
Or maybe there's a short on the CAN bus somewhere stopping them talking to each other.
I think some methodical troubleshooting is in order.
I wonder if there is an earth problem. They all share the same earth, I believe.
Or maybe there's a short on the CAN bus somewhere stopping them talking to each other.
I think some methodical troubleshooting is in order.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: RDS-TMC connection: RDS-TMC connection is faulty
Any update?
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: RDS-TMC connection: RDS-TMC connection is faulty
here's a partial update...
If I swap out the RDS-TMC unit for one of the others I have *and* run a new 12v supply to pin 6 in the 12 pin connector my "RDS-TMC connection: RDS-TMC connection is faulty" error message goes away. So far so good.
However I have another small problem to deal with.
I've taken the original RDS-TMC unit out and in so often that I broke one of the other connectors - the one that plugs into the bronze connector on the RDS-TMC unit (not the silver one). Can you tell me what these two do?
To get around this I stripped the input back to two wires and soldered them to the relevant connectors *inside* the existing RDS-TMC unit (as I couldn't source another connector anywhere).
So without these two cables connected and the new RDS-TMC plus an additional 12v, my error goes away but at present I've no radio reception and I get a "NO TP" error flashing on the RNS-d display. If I sort this - I just need to unsolder the old RDS-TMC unit and solder in the "new" one - any guess as to what will happen? I'm slightly reluctant to open it up and do some soldering which will reduce it's resale value should all of this not work! Follow?!
If I swap out the RDS-TMC unit for one of the others I have *and* run a new 12v supply to pin 6 in the 12 pin connector my "RDS-TMC connection: RDS-TMC connection is faulty" error message goes away. So far so good.
However I have another small problem to deal with.
I've taken the original RDS-TMC unit out and in so often that I broke one of the other connectors - the one that plugs into the bronze connector on the RDS-TMC unit (not the silver one). Can you tell me what these two do?
To get around this I stripped the input back to two wires and soldered them to the relevant connectors *inside* the existing RDS-TMC unit (as I couldn't source another connector anywhere).
So without these two cables connected and the new RDS-TMC plus an additional 12v, my error goes away but at present I've no radio reception and I get a "NO TP" error flashing on the RNS-d display. If I sort this - I just need to unsolder the old RDS-TMC unit and solder in the "new" one - any guess as to what will happen? I'm slightly reluctant to open it up and do some soldering which will reduce it's resale value should all of this not work!
Follow?!Re: RDS-TMC connection: RDS-TMC connection is faulty
That's the radio antenna. It gets the traffic info from it. Not sure if it then passes the antenna to the rns-d or whether that has its own connection.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: RDS-TMC connection: RDS-TMC connection is faulty
Right, so the RNS-D gets its radio signal from the diversity unit... the diversity unit gets its power from... you guessed it, the defunct 12V that has been screwing everything else up.
You really need to fix that upstream 12V supply problem... All your issues appear to be coming from that.
You really need to fix that upstream 12V supply problem... All your issues appear to be coming from that.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: RDS-TMC connection: RDS-TMC connection is faulty
you've lost me - Diversity unit? is that the RDS-TMC?Shoppinit wrote:Right, so the RNS-D gets its radio signal from the diversity unit... the diversity unit gets its power from...
Re: RDS-TMC connection: RDS-TMC connection is faulty
It's a box that all the antennas are connected to and which chooses the strongest signal to send to the RNS-D.
Bottom line: if it's got no power, then you've got no radio.
Bottom line: if it's got no power, then you've got no radio.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: RDS-TMC connection: RDS-TMC connection is faulty
Thanks. I was going to ask where's that but I don't need to know do I - just sort the 12v supply.
Re: RDS-TMC connection: RDS-TMC connection is faulty
Nah, you don't want to do that... it's under the roof trim on the Avant. Under the parcel shelf on the 'loon. Either way --> faff.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: RDS-TMC connection: RDS-TMC connection is faulty
it's been a while since I've seen this -:)
Last edited by MalcolmSu on Sun Jul 05, 2015 1:41 pm, edited 1 time in total.
Re: RDS-TMC connection: RDS-TMC connection is faulty
Hopefully it all still works after I put this lot back together? I've now spent way too many weekends trying to trace the missing 12v supply problem so this weekend took the bull by the horns and ran a new 12v supply *and* earth to each of the 3 components (RNS-D, RDS-TMC and Diversity) - as well as adding a replacement RDS-TMC unit with a hard wired (soldered) co-ax cable (now done but not showing in picture).
This is not the 1st piece of re-wiring to fix a problem in the car so who ever buys this next will surely wonder WTF if they ever venture under the dash!
Why this 12v problem ever happened in the 1st place will have to remain one of life's mysteries. Thanks for sticking with it Shoppinit.
This is not the 1st piece of re-wiring to fix a problem in the car so who ever buys this next will surely wonder WTF if they ever venture under the dash!
Why this 12v problem ever happened in the 1st place will have to remain one of life's mysteries. Thanks for sticking with it Shoppinit.
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