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My swiftech m 168 will transmit but not receive it just busses

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2007 saturn outlook code U2100


Do you know what a serial data network is ? U codes are problems associated the data buss . A module isn't communicating or the buss wiring is shorted etc.....
Data Link Communications Description and Operation

Do you know what an how many modules are on your vehicle ?

The communication among control modules is performed primarily through the GMLAN high speed serial data circuit and the GMLAN low speed serial data circuits. The modules that need real time communication are attached to the high speed GMLAN network. The body control module (BCM) is the serial data gateway between the networks. The purpose of the gateway is to translate serial data messages between the GMLAN high speed buss and the GMLAN low speed buss. The controller area network (CAN) is another serial data communication network used on this vehicle which is dedicated to the electronic brake control module (EBCM) subsystem for stabilization. Below are more detailed descriptions of the individual networks. The gateway will interact with each network according to that network's transmission protocol. Refer to Body Control System Description and Operation for more information about the gateway.

Your best bet would be to take your vehicle to a qualified repair shop .

DTC U2100 00: Controller Area Network (CAN) Bus Communication
The GMLAN serial data circuits are controller area network (CAN) serial data buses used to communicate information between the control modules. Typical data transmission speeds must be high enough to ensure that a required real-time response is maintained. On this vehicle there are 2 totally different types of GMLAN serial data circuits, the high speed 2-wire circuit and low speed single wire circuit. Refer to Data Link Communications Description and Operation for the complete description of these buses. The GMLAN serial data circuits also communicate directly to the DLC connector. Messages are interpreted by the externally connected CANdi module which acts as a transceiver for the scan tool.
Modules connected to the GMLAN serial data circuits monitor communications during normal vehicle operation, where operation information is exchanged among the modules. All the modules on the GMLAN networks, maintain a transmit error counter (TEC) and a receive error counter (REC). The counter values increase with detected errors and will decrease with error-free messages. If the TEC value exceeds 255, the controller removes itself from the network and DTC U2100 will result.

016 CAN Communications

Sep 12, 2017 | Saturn Cars & Trucks

1 Answer

I'm using d-link dwl-3200 ap ( three) Received Frame FCS Error Counts indicate a problem? ___________________________________________ WLAN 802.11G Traffic Statistics Throughput Transmit...


Transmitted Error Count 4734440

Ack Rcv failure Count 15269951


  • As per the above there are error on Transmitting the packet and also for receiving the acknowledge packet.
  • Please check whether any disturbance in the link
  • Each PPP packet has a checksum attached to ensure that the data being received is the data being sent. If the FCS of an incoming packet is incorrect, the packet is dropped and the HDLC FCS count is increased.
  • Another reason for seeing too many FCS errors may be that the remote end has stopped talking PPP.

Feb 27, 2011 | D-Link AirPremier DWL-3200AP 802.11g/b...

1 Answer

When i turn on the receiver it immediately gives me a ¨F70¨ error message on the display


hi there,
This is a problem related to the out put section, try disconnecting alls the speakers from the receiver and turning on the unit. If your unit comes on then mostly any of your speaker or associated cabling is getting shorted . If the same problem persists then usually the amplifier needs service attention, refer to a qualified engineer.

Aug 04, 2010 | Technics SA-DX1050 Receiver

1 Answer

RECEIVED A MIO 168 BOUGHT IN 2004. WOULD LIKE TO USE IT!! no users guide. are there upgrades?


Mio 168 manual and other documents here:
http://www.kolyasoft.com/pocketpc/mio_168_pocket_pc.html

Dec 06, 2009 | Mitac Mio 168 Pocket PC

1 Answer

Hisses/squeals when transmitting


Check the input voltage into the radio while in transmit. The voltage maybe dropping as you go into transmit which causes it to drop into receive. That in turn allows the voltage to come back up. With your finger still on the PTT it tries to transmit again, etc. This could cause a feedback squeal and other symptoms.

May 30, 2009 | Uniden PRO538W (40 Channels) 2-Way Radio

1 Answer

Correct wiring for a ASTATIC TEARDROP MIKE to a RANGER RCI 2950DX


here is the info you asked for the following is the correct wiring.


Mic Wiring Info
Stock Mic Wiring
1. Ground Shield
2. Audio Yellow
3. Transmit Red
4. Receive Black
5. CH. Up White
6. CH. Down Blue
Turner 4-Wire MIC. Wiring
1. Ground Shield
2. Audio White
3. Transmit Black
4. Receive N/C
5. CH. UP N/C
6. CH. Down N/C

Turner 6-Wire MIC. Wiring
1. Ground Shield & Red
2. Audio White
3. Transmit Blue
4. Receive N/C
5. CH. UP N/C
6. CH. Down N/C

Astatic 4-Wire MIC. Wiring
1. Ground Shield
2. Audio White
3. Transmit Red
4. Receive N/C
5. CH. UP N/C
6. CH. Down N/C

Astatic 6-Wire MIC. Wiring
1. Ground Shield & Blue
2. Audio White
3. Transmit Red
4. Receive N/C
5. CH. UP N/C
6. CH. Down N/C

Mar 11, 2009 | Connex 3300 240-Channels Base CB Radio

1 Answer

Garmin GPS 168 Sounder


screen got stepped on while fishing on front of boat and need to find someone who can repair the unit. Thanks for any advice..

Aug 15, 2008 | Garmin GPSMAP 168 Sounder GPS Receiver

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