Transmission Temp Gauge via OBD2 Scan Tool

[slowdog]

I drive a 2007 Ram 1500 5.7. I have searched everywhere that I know for information on using an OBD2 Scan Tool that transmits via Bluetooth to an iPad App which will create a Dashboard which will show my Transmission Temperatures. Has anyone been able to set up an iPad to do this? I have a Veepeak OBDCHECK Ble bluetooth Scan Tool and I am trying to figure out if the are any Apps that will show Tranny Temps. Is there a built in sensor on the 07 Ram that offers this reading through the OBD2? I have noticed that most guys install gauges that operate from DIY installed sensors on the cooling lines, but I also have noted several comments on various forums that the 2007 and up Rams have such sensors already built into the tranny. I just cannot seem to find an App that will access that PID.

There are several Apps that will create a Dashboard showing various real time information (speed, rpm, fuel, etc) but as I plan to tow a camper this summer on a very long road trip, over mountains, I want a Tranny Temp gauge. The Torque Pro App web page indicates that it will show this reading (although I am not sure for 3rd Gen Rams), but it is Android only and I have an iPad. Apparently I can create a "custom PID" but I do not even know for sure if my 07 Ram has that built-in sensor. Any advice will certainly be appreciated!

One other question. I have notice some talk of replacing my OEM cooler for a cooler from a 1-Ton Ram. Has anyone come across a DIY post of that modification?

 

[jmd4100]

I drive a 2007 Ram 1500 5.7. I have searched everywhere that I know for information on using an OBD2 Scan Tool that transmits via Bluetooth to an iPad App which will create a Dashboard which will show my Transmission Temperatures. Has anyone been able to set up an iPad to do this? I have a Veepeak OBDCHECK Ble bluetooth Scan Tool and I am trying to figure out if the are any Apps that will show Tranny Temps. Is there a built in sensor on the 07 Ram that offers this reading through the OBD2? I have noticed that most guys install gauges that operate from DIY installed sensors on the cooling lines, but I also have noted several comments on various forums that the 2007 and up Rams have such sensors already built into the tranny. I just cannot seem to find an App that will access that PID.

There are several Apps that will create a Dashboard showing various real time information (speed, rpm, fuel, etc) but as I plan to tow a camper this summer on a very long road trip, over mountains, I want a Tranny Temp gauge. The Torque Pro App web page indicates that it will show this reading (although I am not sure for 3rd Gen Rams), but it is Android only and I have an iPad. Apparently I can create a "custom PID" but I do not even know for sure if my 07 Ram has that built-in sensor. Any advice will certainly be appreciated!

One other question. I have notice some talk of replacing my OEM cooler for a cooler from a 1-Ton Ram. Has anyone come across a DIY post of that modification?

I'm wondering the same thing myself about my tranny temp... obd2 wont show any data but I've heard tranny has it. Hopefully we can find an answer for that. As far as tranny coolers go, (I also have a 2007 5.7 1500) I found it was easier and far less expensive to buy an auxiliary cooler and install it in front of the A/C condenser. The electric fan will keep it very cool it moves more air than I thought. And no matter how much weight I've been towing and no matter how hot it is outside I havent noticed a decrease in ac air temp. I cut the return line a few inches from the tranny and installed a line on one end and a line on the other so the fluid leaves the transmission and enters the oe cooler. It then leaves that and goes into the return line and enters the pickup line going to the auxiliary cooler. It then leaves that and returns to the transmission. Here are some pictures. It took about a half hour in total and I had to add about 1/3 quart of fluid.

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[slowdog]

Hey Thanks! Great idea that I will take a close look at. I am still in hope that someone will be able to tell me how to get the Scan Tool and App to pick up the Tranny Temps.....surely it is possible!

 

[OCDTech]

Hey Thanks! Great idea that I will take a close look at. I am still in hope that someone will be able to tell me how to get the Scan Tool and App to pick up the Tranny Temps.....surely it is possible!

I have the torque app which is GREAT, however i havent tried to look at the trans temp, most likely thats going to require what they call enhanced data. I've used the app but mostly for codes, and fuel trim, and diagnosis. So someone else will have to chime in if they know. Also, torque is only for android, but is definitely worth getting a cheap device to do just that.

As for obd adapters, I can recommend two. One made by BAFX, about 20 dollars on amazon, and a much better one OBD LINK MX+ Bluetooth. Always get the bluetooth whatever you get, not the wi fi version.

 

[slowdog]

Thanks OCDTech! I have already bought a VEEPEAK bluetooth adapter because it was recommended by OBD Fusion app, which was the app I was going to use, but after a conversation with them they informed me that (like you mentioned) they did not offer the enhanced data for Chrysler, and thus their app would not display transmission temps. Apparently they offer enhanced data from Ford, Toyota and GM, but not Chrysler. That seems to be true of all apps that I have been looking into.

I would find a used Android Tablet and use Torque but I already use the iPad in the truck for GPS navigation and do not wish to get the cab so cluttered with tablets. Thanks again for your input....if you find out that your Torque app will allow you to access the tranny temps, please let me know. Like I mentioned, I am not even sure that the 2007 Ram OBD2 port allows such access.

 

[OCDTech]

Thanks OCDTech! I am not even sure that the 2007 Ram OBD2 port allows such access.

Your welcome, and It shouldn't be the problem, it usually boils down to the monitors that are supported, the older the less they will monitor, because of the technology at the time, say my 99 f150 didn't have fuel pressure monitors, lots of vehicles now do. etc.

Chrysler as well as some other manufacturers are stingy when it comes to releasing their proprietary info. Thats why you will see lots of scan tools having enhanced data like ford toyota and gm. Not so many with other tools.

 

[slowdog]

Well, after a lot of reading on Forums and on the web Chrysler simply does not release their proprietary PID's to the public nor to software developers unless a hefty price is paid....at least that is what I can gather.

It has been suggested by others that the OBD2 app developers that do include Chrysler PID's for such things as Transmission Temps, etc. have paid thousands for the data. Ford, GM, Toyota and others (to varying degrees) have apparently taken the opposite approach and recognized that Gearheads use and will continue to use the OBD2 port for customization of Tablet/Phone Dashboard Gauges. Many Chrysler owners do indeed think that being able to monitor live reporting of what is going on in their engine and transmission is important.... Shame on Chrysler!! IMO.

 

[HemiLonestar]

I don't have this problem lol

 

[jmd4100]

I don't have this problem lol

View attachment 191899

Haha howd you wire it?

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[HemiLonestar]

Haha howd you wire it?

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Goes right to the OBD port

 

[jmd4100]

Goes right to the OBD port

Guy before me had the trans rebuilt... wonder if he screwed something up dead gum

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[jmd4100]

Guy before me had the trans rebuilt... wonder if he screwed something up dead gum

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Do you know of any way to see if there's a wire cut or missing? Any idea where theres any electrical going from the tranny to obd2 port?

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[slowdog]

That setup would suit me fine, who makes that gauge? I have seen some fairly expensive gauges that derive the Transmission temps from the OBD port, was that one expensive?

 

[evision]

I have not tested, YET! But after a little digging I found this...


DODGE RAM PIDS (PARAMETER ID'S)
THESE ARE ALL THE AVAILABLE PIDS FOR ALL DODGE TRUCKS. DEPENDING ON THE MODEL YEAR , SOME OF THESE MAY NOT BE AVAILABLE.






ADVALUES

AC-AD AC HIGH SIDE PRESSURE A/D
ALT-V-AD ALTERNATOR VOLTAGE A/D VALUE
BAT-T-AD BATTERY TEMPERATURE A/D VALUE
BOOST-AD BOOST PRESSURE A/D VALUE
DTC#CLR* # OF WARMUPS SINCE DTC CLEARED (SAE)
DESOOT DESOOT ENABLE
DESOX DESOX ENABLE
ECM-V-AD ECM VOLTAGE A/D VALUE
ECT-AD ENGINE COOLANT TEMPERATURE A/D VALUE
ENG-S ENGINE STATUS
EXH-P-AD ENHAUST PRESSURE A/D VALUE
FS FUEL SCALER
INJ-FS INJECTOR FUELING STATUS
IOP-AD INJECTOR OPEN CURC FAULTS
INJ-12VF INJECTOR SHORT TO 12V CIRC FAULTS
INJ-GNDF INJECTOR SHORT TO GROUND CIRC FAULTS
INJTIM-S INJECTOR TIMING STATUS
ILAT-AD INLET AIR TEMPERATURE A/D VALUE
IAH-AD INLET AIR HEATER STATE
IAH-S INLET AIR HEATER STATUS
IAT-AD INLET AIR TEMERATURE A/D VALUE
KEYC KEYU COUNTER
RP-CS RAIL PRESSURE CONTROL STATE
RP-SS RAIL PRESSURE SENSOR STATE
TP1-AD THROTTLE 1 POSITION A/D VALUE
TP2-AD THROTTLE 2 POSITION A/D VALUE
WIF WATER IN FUEL
WIF-AD WATER IN FUEL A/D VALUE


AIRFLOW
MAF* FLOW RATE FROM MAF SENSOR (SAE)
VGT-AF VGT TURBO AIR FLOW


AMPS
FCA-MA FUEL CONTROL ACTUATOR MILLI AMP


INJECTOR QUANTITY
BAL-($) BALANCING FUEL FLOW RATE (% = CYLINDER)
EFR* ENGINE FUEL RATE (SAE)
FR-BAL COMMANDED FUEL WITH BALANCED RATES
MIQ-RAW MAIN INJECTION QUANTITY RAW
MIQ-BAL MAIN INJECTION QUANTITIY WITH BALANCED RATES
MI-D MAIN INJECTION DURATION
PI-D PILOT INJECTION DURATION
POI-D POST INJECTION DURATION


MISC
CLRDIST* DISTANCE SINCE DTC CLEARED (SAE)
DISTMIL* DISTANCE SINCE MIL ACTIVATED (SAE)
TQ TORQUE CURRENT OUTPUT
VGT-AD VGT TURBO DENSITY
VGT-S-HZ VGT TURBO SPEED SENSOR FREQUENCY


PERCENTAGE PARAMETERS
EGRC-E EGR COLLER EFFICIENCY
EGR EGR VALVE POSITON(ACTUAL)
EGR-D EGR VALVE POSITION(DESIRED)
LOAD% ENGINE LOAD(ACTUAL)
LOAD%* ENGINE LOAD(ACTUAL SAE)
LOAD%C* ENGINE LOAD(CALCULATED SAE)
LOAD%*D ENGINE LOAD(DESIRED SAE)
EBV-P EXHAUST BYPASS VALVE POSITION
FAN-DC FAN DUTY CYCLE
FUEL%* FUEL LEVEL(SAE)
IATH-A INTAKE AIR THROTTLE POSITION(ACTUAL)
IATH-D INTAKE AIR THROTTLE POSITION(DESIRED)
TP-% THROTTLE POSITION
TP1-% THROTTLE 1 POSITION
TP2-% THROTTLE 2 POSITION
TP-A% THROTTLE POSITION (ACTUAL)
VGT VGT TURBO POSITION( ACTUAL)
VGT-D VGT TURBO POSITION (DESIRED)


PRESSURE PARAMETERS
AC-P AC PRESSURE
BARO-P BAROMETRIC PRESSURE
BARO-P* BAROMETRIC PRESSURE (SAE)
BOOST BOOST PRESSURE
CRKC-P CRANKCASE PRESSURE
DPF-DP DPF DELTA PRESSURE
DPF-OP DPF OUTLET PRESSURE
EXH-P EXHAUST PRESSURE
RP RAIL PRESSURE
RP-D RAIL PRESSURE (DESIRED)
RP-R RAIL PRESURE (RATIONALITY)
VGT-IP VGT COMPRESSOR INLET AIR PRESSURE


RPM
ES VENGINE SPEED
ES* ENGINE SPEED (SAE)
FAN FAN SPEED
TA-A TURBINE ACCELERATION (ACTUAL) (68RFE)
TA-D TURBINE ACCELERATION (DESIRED) (68RFE)
VGT-S VGT TURBO SPEED


SPEED
SPEED VEHICLE SPEED
SPEED* VEHICLE SPEED (SAE)


TEMPERATURE
AAT AMBIENT AIR TEMPERATURE
AAT* AMBIENT AIR TEMPERATURE (SAE)
CAT-IT CATALYST INLET TEMPERATURE
CAT-OT CATALYST OUTLET TEMPERATURE
DPF-OT CATALYST SOOT FILTER OUTLET TEMPERATURE
EGR-TEMP EGR ORFICE TEMPERATURE
ECT ENGINE COOLANT TEMPERATURE
ECT* ENGINE COOLANT TEMPERATURE (SAE)
IAT* INTAKE AIR TEMPERATURE (SAE)
IAM-T INTAKE MANIFOLD TEMPERATURE
IC-OT INTERCOOLER OUTLET TEMERATURE
STC-IT CONTROLLER INTERNAL TEMP
EGT-CJ EGT SENSOR COLD JUNTION TEMPERATURE
EGT EGT SENSOR TEMPERATURE
SCR-IT SELECTIVE CATALYST REDUCTION INLET TEMPERATURE
SCR-ITML SELECTIVE CATALYST REDUCTION INLET TEMPERATURE MAX LIFETIME
SCR-OT SELECTIVE CATALYST REDUCTION OUTLET TEMPERATURE
SCR-OTML SELECTIVE CATALYST REDUCTION TEMPERATURE MAX LIFETIME
VGT-IT VGT COMPRESSOR INLET AIR TEMPERATURE


TIMER
T-ES* TIME SINCE ENGINE START (SAE)


TIMING
TIM* MAIN INJECTION TIMING (SAE)


TRANSMISSION
OS OUTPUT SPEED (68FRE)
GEAR-P PRESENT GEAR (68FRE)
GEAR-S SELECTED GEAR (68FRE)
TCC-S TCC STATE (68FRE)
TQ-S TORQUE CONVERTER SLIP (68FRE)
TRANS-OT TRANSMISSION OIL TEMPERATURE (68FRE)
TOS-S TRANSMISSION OUTPUT SHAFT SPEED (68FRE)
TP TRANSMISSION PRESSURE (ACTUAL) (68FRE)
TP-D TRANSMISSION PRESSURE (DESIRED) (68FRE)
TP-DC TRANSMISSION PRESSURE DUTY CYCLE (68FRE)
TP-V TRANSMISSION PRESSURE VOLTAGE (68FRE)
TT-V TRANSMISSION TEMPERATURE VOLTAGE (68FRE)
TTS TRANSMISSION TURBINE SPEED (ACTUAL) (68FRE)
TTS-D TRANSMISSION TURBINE SPEED (DESIRED) (68FRE)
T-LIMP TRANSMISSION LIMP IN STATUS [0=MAINUAL/AISIN, 1=68FRE]


VOLTAGE
ALT-V ALTERNATOR VOLTAGE (ACTUAL)
AAP-V AMBIENT AIR PRESSURE VOLTAGE
BOOST-V BOOST PRESSURE SENSOR VOLTAGE
CAT-ITV CATALYST INLET TEMPERATURE VOLTAGE
CAT-OTV CATALYST OUTLET TEMPERATURE VOLTAGE
CK-PV CRANKCASE PRESSURE VOLTAGE
DPF-DPV DPF DELTA PRESSURE VOLTAGE
DPF-OTV DPF OULET TEMPERATURE VOLTAGE

 

[grpht03ram]

I have the same gauge as Lonestar
Its an aeroforce interceptor
Works great! Shows transmission temp and a bunch of other stuff

Their website has a full list of what's supported

 

[HemiLonestar]

That setup would suit me fine, who makes that gauge? I have seen some fairly expensive gauges that derive the Transmission temps from the OBD port, was that one expensive?

Dunno how I missed this lol, but what he said below

I have the same gauge as Lonestar
Its an aeroforce interceptor
Works great! Shows transmission temp and a bunch of other stuff

Their website has a full list of what's supported

I usually have it on digital speedo and engine temp unless I'm towing, then I'll switch it to engine temp and trans temp. Unfortunately pre-CAN bus Rams don't have a PID for oil pressure.



From their site:
Chrysler (non-CAN) Vehicles – SR series gaugeslatforms:
Platform 1: Neon SRT4, Neon, PT Cruiser
Platform 2: Ram, Durango, Dakota, 300m, Intrepid, Stratus, Sebring, Concord, LHS, Liberty
1. INTAKE AIR- Intake Air Temperature taken at the throttle body inlet
2. AMBIENT AIR TEMPERATURE – air temperature at the air filter
3. COOLANT TEMP- Engine Coolant Temperature
4. RPM- engine Revolutions Per Minute
5. CALCULATED AIR FLOW RATE- Mass Air Flow (lbs/min) calculated by the PCM
6. BAROMETRIC PRESSURE – ambient (outside) air pressure
7. MANIFOLD PSI- Manifold Air Pressure (boost-psi)
8. THROTTLE POS PCT- Throttle Position percentage (0-100%)
9. THROTTLE VOLTS- Throttle Position sensor output (0-5 volts)
10. MILES PER HOUR- Miles Per Hour
11. KNOCK RETARD- Total Knock Retard (degrees)
12. ST KNOCK RETARD – Short term knock retard
13. LT KNOCK RETARD – Long term knock retard
14. FUEL KNOCK RETARD – ST + LT knock retard
15. KNOCK SENSOR RAW VOLTAGE – voltage output of knock sensor
16. WASTEGATE SOLENOID % DUTY CYCLE – programmed wastegate Duty cycle, 0-100%
17. SHORT TRIM FUEL TRIM- short term fuel trim
18. LONG TRIM FUEL TRIM– long term fuel trim
19. OXYGEN SENSOR- O2 bank 1 sensor in millivolts
20. FUEL LEVEL – amount of fuel in the tank in gallons.
21. EXHAUST GAS TEMP – calculated/determined by the PCM
22. TRANS TEMP- Transmission Temperature (auto transmission only)
23.RUN TIME MINS- engine run time since last engine start. Can be used as a trip timer.
24.BATTERY VOLTAGE- Alternator/battery output voltage
25. BATTERY TEMP - Battery Temperature
26. PULSE WIDTH- injector pulse width
27. FUEL TEMPERATURE
28. BASE SPARK TIMING – timing level commanded by the PCM before adjustments due to temperature, knock, etc.
29. SPARK ADJUST – adjustments made to base spark timing
30. IGNITION ADVANCE- final ignition timing advance after adjustments
31.ENGINE LOAD-calculated Engine Load (0-100%)
32.Miles Per Gallon- instantaneous fuel economy
33. Calculated net horsepower
34.TOTAL MISFIRES- Total misfires of all cylinders.
35. P Ratio – Pressure Ratio MAP/BAROMETER
36. Analog 1– analog input #1.
37.Analog 2– analog input #2

Also has:
Last but not least, the Interceptor will measure 0-60 times, as well as 1/8 and 1/4 mile time and speeds. This is accomplished through a simple menu selection.

 

[grpht03ram]

Yeah, I bought all the parts to add oil pressure, but havent gotten around to it yet...

Great gauge. I like it a lot. I just wish it could auto-dim with the headlights

 

[LoneWolf3574]

Old thread, I know, but I stumbled across it because of wanting the same thing as the OP. On that note, yippie, it looks like the Aeroforce CNC series supports my truck.

 

[HemiLonestar]

Old thread, I know, but I stumbled across it because of wanting the same thing as the OP. On that note, yippie, it looks like the Aeroforce CNC series supports my truck.

Of course they do, you just need the CAN bus version lol.