Author Topic: Convert ScanGauge XGauge to UltraGauge M Gauge  (Read 10969 times)

Offline jahmes143

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Convert ScanGauge XGauge to UltraGauge M Gauge
« on: June 29, 2015, 10:44:59 AM »
I need to read the transmission temperature in a 2008 Volkswagen Passat with UltraGauge MX.  Is it possible to convert the already known X Gauge command into M Gauge format? I cannot find the M Gauge command anywhere online :/

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #1 on: June 29, 2015, 10:57:47 AM »
The Xgauge code can be converted and used on the UG MX.
When purchased, the MX comes with programming instructions.

Offline jahmes143

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #2 on: June 29, 2015, 02:14:18 PM »
Ah, found the instructions, thanks.  Several MX inputs are not found in XGauge commands, including Tctrl, Rctrl, Out Format, and Left/Right.  I understand the last two, but how does one know which Tctrl and Rctrl inputs to use? 

The recommended values of 93 (Tctrl) and 31 (Rctrl) yield an Error. 

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #3 on: June 29, 2015, 02:33:32 PM »
It depends on the protocol and on the code.   Post them

Offline jahmes143

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #4 on: June 29, 2015, 02:47:33 PM »
   
GAUGE   Transmission Temperature      
TXD         686AF10105
RXF         031A04410505   
RXD         2808   
MTH         00090005FFD8   
NAME     TFT
NOTE     Degrees F


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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #5 on: July 05, 2015, 05:33:23 PM »

The code you have listed is that for the standard OBDII engine coolant temperature

Offline jahmes143

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #6 on: July 05, 2015, 09:57:15 PM »
Not engine coolant, tranny temp. 

Offline jahmes143

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #7 on: July 08, 2015, 03:11:22 PM »
???

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #8 on: July 08, 2015, 03:39:12 PM »
The code provided is for Coolant temperature, not transmission temperature.

Offline jahmes143

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #9 on: July 08, 2015, 04:15:47 PM »
Are you sure? The two codes are very similar but copied straight from ScanGauge's website it says it's tranny temp, not coolant.  The only difference between the 2 codes is 1 letter in the RFX.   

https://www.scangauge.com/support/x-gauge/vw-specific-xgauges/

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #10 on: July 08, 2015, 05:07:52 PM »
Please not that the MX product page specifically warns that 9141 and KWP protocols are not supported for Mgauges.
Your VW uses 9141.

The code provided is the standard code to access engine coolant temperature.
However, it may be that the vehicle is responding with a multiframe response or multi-ECU responses.

We can try to  make this work, try:
TDATA: 686AF10105
MATCH: 1A4105
RPOS  2808
TCTRL: 85
RCTRL: 32   (if it does not work, try 33)
X:0009
/:0005
+:FFD8
Output Format:00

Offline jahmes143

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #11 on: July 08, 2015, 06:22:51 PM »
No, it uses CAN.  Known from personal knowledge, and as indicated by the "Auto Detect" feature of the UltraGauge.  I tried the above code and am still receiving the Err message. 

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #12 on: July 08, 2015, 06:39:41 PM »
The codes that you provided are not CAN, they are ISO-9141.   In the USA, all vehicles manufactured since 2008 are CAN

Offline jahmes143

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #13 on: July 09, 2015, 12:11:46 PM »
Ah, well I guess I don't have the correct code then :/.  Any idea what the correct tranny temp code would be for a 2008 Passat? Scangauge tech couldn't figure it out.   

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #14 on: July 09, 2015, 01:33:07 PM »
Search forums specific to your vehicle to find codes

Offline jahmes143

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Re: Convert ScanGauge XGauge to UltraGauge M Gauge
« Reply #15 on: July 09, 2015, 01:44:49 PM »
Yea I did that for a few hours and came up empty.  Looks like nobody has the tranny temp code I need.