I have a set of T4525s and another set of T4508 Can they communicate with each other?

• DTC U2105 Lost Communications With Engine Control System
Modules connected to the GMLAN serial data circuits monitor for serial data communications, during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have programmed information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are also supervised and some periodic messages are used by the receiver module as an availability indication of the transmitter module. The supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. When a message that indicates the availability of the transmitter module is not received, the receiver module sets a DTC 21xx where xx is equal to the 2-digit identification number of the transmitter module.
The DTC descriptors listed below provide a method for determining which module is not communicating. A module with a GMLAN serial data circuit malfunction or which loses power during the current ignition cycle will have a Loss of Communication DTC set by other modules that depend on information from that failed module. The modules that can communicate will set a DTC indicating the module that cannot communicate.

Your best bet , take it to a qualified repair shop .

When a malfunction such as an open fuse to a module occurs while modules are communicating, a DTC U1001-1254 Loss of 000 Communications is set current. When the modules stop communicating the current DTC U1001-1254 Loss of 000 Communications is cleared but the history DTC remains. When the modules begin to communicate again, the module with the open fuse will not be learned by the other modules so U1000 or U1255 is set current by the other modules. If the malfunction occurs when the modules are not communicating, only U1000 or U1255 is set. Radio quit working shows Code IRC U1000 please help

DTC U1000 and U1255
Class 2 Communication Malfunction , Do you know what class 2 serial data communication network is ? What module set this code an what kind of scan tool did you use to read this code .
Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the ID number of the module which sent the message for State of Health monitoring, Node Alive messages. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. When a module does not associate an ID number with at least one critical parameter within about 5.5 seconds of beginning serial data communication, DTC U1000 or U1255 is set. When more than one critical parameter does not have an ID number associated with it, the DTC will only be reported once.
The table below list the modules on the Class 2 Serial Data Circuit that will set a U1000 or U1255 and should be actively communicating the previously described messages on the Class 2 Serial Data Circuit.

Control Module

ID Number
Body Control Module (BCM)
064
Electronic Brake Control Module (EBCM)
040
Instrument Panel Cluster (IPC)
096
Radio
128
Powertrain Control Module (PCM)
016
Sensing and Diagnostic Module (SDM)
088
Diagnostic Aids
When a malfunction such as a open fuse to a module occurs while modules are communicating, a Loss of Communication DTC is set as current. When the modules stop communicating, ignition is turned off, the current Loss Communication DTC is cleared but the history DTC remains. When the modules begin to communicate again, the ignition is turned on, the module with the open fuse will not be learned by the other modules so U1000 or U1255 is set current by the other modules. If the malfunction occurs when the modules are not communicating, only U1000 or U1255 is set.
Test Description
The numbers below refer to the step numbers on the diagnostic table.

1. A DTC U1001 - U1254 Lost Communications with with a history status may indicate the cause of U1000 or U1255.


2. The modules not communicating are the likely cause of U1000 or U1255. The modules that are available on the class 2 serial data circuit are listed in the Circuit Description.


3. The module which was not communicating due to a poor connection to the class 2 serial data circuit may have set DTC U1001 - U1254 Lost Communications with for those modules that it was monitoring.


4. The modules which can communicate indicate the module which cannot communicate. You must clear the serial data communication DTCs from these modules to avoid future misdiagnosis.


5. If all modules are communicating, the module which set U1000 or U1255 may have done so due to some other condition.


6. The module which set U1000 or U1255 is the likely cause of the malfunction.

1

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Record the DTCs set in each module. If using a Tech 2, use the Class 2 DTC Check feature to determine which modules have DTCs set.

Did you record any DTCs in the range of U1001-U1254 with a history status?
Go to Diagnostic Trouble Code (DTC) List
Go to Step 2

2

1. Turn ON the ignition, with the engine OFF.
2. Attempt to communicate with each module on the class 2 serial data circuit. If using a Tech 2, obtain this information using the class 2 Message Monitor feature.
3. Record all of the modules communicating on the class 2 serial data circuit.
4. Compare the list of modules which are communicating to the list given in Circuit Description.

Does any module on the class 2 serial data circuit not communicate?
YES - Go to Step 3
NO - Go to Step 12
Test the following circuits of the module that is not communicating for an open or short to ground:
?€¢
The battery positive voltage supply circuits

?€¢
The switched battery positive supply circuits

?€¢
The battery positive voltage output circuits

?€¢
The ignition voltage input circuits

?€¢
The ignition voltage output circuits

Refer to the following:
?€¢
Control Module References in Body Control System for the applicable schematic

?€¢
Circuit Testing in Wiring Systems

?€¢
Wiring Repairs in Wiring Systems

Did you find and correct the condition?

5

Important: Inspect all connectors in the serial data communications circuit.
Refer to the following:
?€¢
Data Link Connector Schematics

?€¢
Testing for Intermittent Conditions and Poor Connections in Wiring Systems

?€¢
Connector Repairs in Wiring Systems

1. Turn OFF the ignition.
2. Test the class 2 serial data circuits of the module that is not communicating for an open. Refer to the following:

?€¢
Data Link Connector Schematics

?€¢
Circuit Testing in Wiring Systems

?€¢
Wiring Repairs in Wiring Systems

Did you find and correct the condition?
Go to Step 8
Go to Step 6

6
Inspect the harness connector of the module that is not communicating for poor connections and terminal tension at the following circuits:
?€¢
The battery positive voltage input circuits

?€¢
The switched battery positive voltage supply

?€¢
The battery positive voltage output circuits

?€¢
The ignition voltage input circuits

?€¢
The ignition voltage output circuits

?€¢
The ground circuits

?€¢
The class 2 serial data circuits

Refer to the following:
?€¢
Control Module References in Body Control System for the applicable schematic

?€¢
Testing for Intermittent Conditions and Poor Connections in Wiring Systems

?€¢
Connector Repairs in Wiring Systems

Did you find and correct the condition?
Go to Step 8
Go to Step 7

7

Important: Perform the module programming or setup procedure if required.
Replace the module that is not communicating. Refer to Control Module References in Body Control System for the appropriate Repair Instructions for the module replacement.
Did you complete the replacement?
Go to Step 10
--

8

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Select the Display DTCs function for the module which was not communicating.

Does the scan tool display any DTCs which do not begin with a "U"?
Go to Control Module References in Body Control System for applicable Diagnostic System Check
Go to Step 9

9
Use the scan tool in order to clear the DTCs.
Did you complete the action?
Go to Step 10
--

10

Select the Display DTCs function for the modules which had U1000 or U1255 set as a current DTC.
Does the scan tool display DTCs which do not begin with a "U"?
Go to Control Module References in Body Control System for applicable Diagnostic System Check
Go to Step 11

11

Use the scan tool in order to clear the DTCs.
Did you complete the action?
System OK
--

12
Did you record any other DTCs for the modules which had U1000 or U1255 set as a current DTC?
Go to Control Module References in Body Control System for applicable Diagnostic System Check
Go to Step 13

13

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Use the scan tool in order to clear the DTCs.
4. Turn OFF the ignition for at least 5 seconds.
5. Turn ON the ignition with the engine OFF.
6. Select the Display DTCs function.

Does the scan tool display U1000 or U1255 set as a current DTC?
Go to Step 14
Go to Diagnostic Aids

14
Important: Perform the module programming or setup procedure if required.
Replace the module which had U1000 or U1255 set as a current DTC. Refer to Control Module References in Body Control System for the appropriate Repair Instructions for the module replacement.
Did you complete the replacement?
System OK

From what we can tell the TalkAbout T4508 is a non-USA version of the T4500. The T4508 operates in a frequency range from 409-410 MHz. Unlike the USA version which operates between 462-468 MHz.

And it looks like the TP391 operates around 466 MHz. User Guide: http://de.oregonscientific.com/ulimages/manuals2/tp391_EN.pdf

This being said, your radios might not be compatible.

Best regards.

Best regards.

1) Check the programming to be certain they are on the same frequency.
2) Check your batteries, as it takes more energy to transmit than to receive. Swapping the batteries from the good unit to the suspect unit should tell if it is a battery issue.

In looking at the user manual for the T4500, it does not appear to have an interference eliminator code. If the T4508 were to have "code" this also would need to be programmed identically to the other radio.

Here is a link to the user guide for the T4500: http://www.giantintl.com/RadioPDFs/Outdated%20Manuals/T4500_User_Manual_E.pdf

Best regards.

Check the programming of the frequency and interference code eliminator. Be certain they match one another exactly. Here is a link to the user's guide http://www.giantintl.com/RadioPDFs/Outdated%20Manuals/T4500_User_Manual_E.pdf

Also, check the battery contacts on both the radio and the battery for corrosion or film. Clean with a pencil eraser if needed.

you set the settings correctly then you switch off your mobile and switch on it then use

If the machine is a Dell with DellControlPoint, open start, run then type msconfig and hit enter. Choose the Startup tab and find the startup item named "Dell" with the Command from "C:\Program Files\Dell\Dell Control Point\Connection Manager\Dell.UCM.exe" and uncheck the box. Hit Ok, then reboot your computer.

http://www.giantintl.com/RadioPDFs/Outdated%20Manuals/T4500_User_Manual_E.pdf

This one should be a very close match. The T4508 is a foreign version of the T4500.

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send it to 211