Hyundai XG 300 2001. reading a P1632 Engine code. Controller Area Network Bus, OFF. I know how (C.A.N) works I dont know how to fix it. HELP.

C.A.N - controller area network . is a serial date communication network for the control modules on the vehicle .
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016 CAN Communications

Your best bet ,take it to a qualified repair shop

U0073 Control Module Communication Bus Off Digital Signal Processor REFER to Section 418-00 . U0073 Control Module Communication Bus A Off EATC Module REFER to Section 418-00 . U0073 Control Module Communication Bus A Off SJB REFER to Section 418-00 . U0073 Control Module Communication Bus A Off TCM (FNR5 Speed Transaxle) REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. U0073 Control Module Communication Bus A Off TCM (6 Speed Transaxle) REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
Your best bet , take it to a qualified repair shop . You do not have the knowledge or diagnostic test equipment to diagnose this . Do you know what C.A.N. - controller area network is ?
Communications Network Vehicle communication utilizes both medium and high speed controller area network (CAN) communications. CAN is used for many modules to communicate with each other on a common network. CAN in-vehicle networking is a method for transferring data among distributed electronic modules via a serial data bus. Without serial networking, intermodule communication requires dedicated, point to point wiring resulting in bulky, expensive, complex, and difficult to install wiring harnesses. Applying a serial data network reduces the number of wires combining the signals on a single network. Information is sent to the individual control modules that control each function.
The vehicle has 2 module communication networks:

• Medium speed (MS) CAN
• High speed (HS) CAN

Both networks are connected to the data link connector (DLC). This makes diagnosis and testing of these systems easier by allowing one scan tool to be able to diagnose and control any module on both networks from one connector. The DLC can be found under the instrument panel between the steering column and the audio unit.

016 CAN Communications

P0020 - Intake Camshaft Position Actuator Circuit/Open (Bank 2) Description: See the description for DTC P0010. Possible Causes: See the possible causes for DTC P0010. Diagnostic Aids: See the diagnostic aids for DTC P0010. Application Key On Engine Off Key On Engine Running Continuous Memory All GO to Pinpoint Test HK .

Do you know what a serial data communication network is ? All the control modules on your vehicle share info on it . It stead of hard wiring all the componets on the vehicle they use control modules and a data network . U codes are problem codes assoicated with these networks . U0073 generic control module communication bus"a"OFF Has nothing to do with engine sensors ! Condition
The control modules transmit and receive information via a standardized serial communication method - CAN (Control Area Network).
The diagnostic trouble code (DTC) is stored if the control module detects that:

• The control module does not have contact with the controller area network (CAN).
• Incorrect value runs longer than 10 seconds.

The control module's test for the diagnostic trouble code (DTC) starts in the event of:

• Starting the control module's CAN communication.

Note!The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met. In the event of system communication problems, it is not possible to communicate with the control module. Therefore it will only be possible to read off the fault if it is intermittent. Substitute value

• None.

Possible source

• Open-circuit in terminals.
• Damaged Parking Assistance Module (PAM).

Fault symptom[s]

• Parking Assistance System, malfunction
• Information lamp is on
• Message in information display

A shorted module will cause the data bus to short and cause no start condition . You best bet , take it to a qualified repair shop . How to Diagnose Controller Area Network CAN

Where did you pull this code from ? What type scan tool did you use ,or was it a code reader ? Do you know about data communication networks on modern cars ? A U codes indicate a communication problem on the data network .
U1900 CAN Communication Bus Fault-Receive Error Audio Control Module REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error ABS Module REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error Instrument Cluster REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error SJB REFER to Section 418-00 . The thing that would make this easier to diagnose would be to have a factory scan tool or a professional grade . Need to know what modules can communicate with scan tool .Honestly ,Don't think you can fix this . Dealer or ASE certified repair shop .Do you know what C.A.N. - controller area network is ? The vehicle has 3 module communications networks:

• high speed controller area network (CAN)
• medium speed CAN
• international standards organization (ISO) 9141 communications network

The diagnostic tool connects to the communications networks through the data link connector (DLC). The DLC allows a diagnostic tool access to diagnose and test the vehicle systems of any module on the communications networks.
All 3 communications networks are connected to the DLC. This makes diagnosis and testing of these systems easier by allowing one diagnostic tool to be able to diagnose and control any module on the 3 communications networks from one common connector. The DLC can be found under the instrument panel between the steering column and the driver door. Which module doesn't communicate with scan tool ?
Symptom Chart Condition Possible Sources Action

• The anti-lock brake system (ABS) module does not respond to the diagnostic tool

• Circuit or connection in the high speed controller area network (CAN)
• ABS module

• Go To Pinpoint Test A .

• The audio unit does not respond to the diagnostic tool

• Circuit or connection in the medium speed controller area network (CAN)
• Audio unit

• Go To Pinpoint Test B .

• Circuit or connection in the medium speed controller area network (CAN)
• Audio unit

• Go To Pinpoint Test B .

• The instrument cluster does not respond to the diagnostic tool - high speed controller area network (CAN)

• Circuit or connection in the high speed CAN
• Instrument cluster

• Go To Pinpoint Test C .

• The instrument cluster does not respond to the diagnostic tool - medium speed controller area network (CAN)

• Circuit or connection in the medium speed CAN
• Instrument cluster

• Go To Pinpoint Test D .

• The powertrain control module (PCM) does not respond to the diagnostic tool

• Circuit or connection in the high speed controller area network (CAN)
• PCM

• Go To Pinpoint Test E .

• The restraint control module (RCM) does not respond to the diagnostic tool

• Circuit or connection in the international standards organization (ISO) 9141 communications network
• RCM

• Go To Pinpoint Test I .

• The smart junction box (SJB) does not respond to the diagnostic tool

• Circuit or connection in the medium speed controller area network (CAN)
• SJB

• Go To Pinpoint Test F .

• No high speed controller area network (CAN) communication

• Circuit or connection in the high speed CAN
• High speed CAN modules

• Go To Pinpoint Test G .

• No medium speed controller area network (CAN) communication

• Circuit or connection in the medium speed CAN
• Medium speed CAN modules

• Go To Pinpoint Test H .

• No international standards organization (ISO) 9141 communications network communication

• Circuit or connection in the ISO 9141 communications network circuit
• Restraint control module (RCM)

• Go To Pinpoint Test I .

• No module/network communication - no power to the diagnostic tool

• Data link connector (DLC) C251
• Bussed electrical center (BEC) fuse 4 (30A)
• Smart junction box (SJB) fuse 8 (10A)
• Circuitry
• Diagnostic tool

• Go To Pinpoint Test J .

Can bus C is a serial data communication network that certain modules talk ,share information on ! There can be two or even three different bus networks - A , B , C . One being faster in speed of data transfer then the other ! There are two wire data bus's an single wire ones ! CAN- Controller Area Network is a two wire bus an the wires are twisted together to shield from noise interference . You code U0001 is a communication problem on the bus , a module isn't communicating ! How to Diagnose Controller Area Network CAN This is something best left to a trained technician !

U1411 Implausible Fuel Volume Signal ReceivedPossible Causes Setting Conditions
CAN 'C' Bus circuit is open or shorted to ground
Cluster module has failed
FCM has failed
PCM has failed
Key on or engine running; and the PCM determined that the Fuel Volume signal it received was implausible.
This code sets in 1 Trip(s).
This code will turn on the MIL (Malfunction Indicator Lamp) Vehicle Application: 2005 Jeep Grand Cherokee Laredo 4.7L, Vin N, Eng Cfg V8

Customer Concern: Has 11 codes. U0101, U110C, U0121, P0480, U1120, U0103, U1411, U110E, P000B, U0100, U0002. At this time there is a no crank condition.
Tests/Procedures: 1. Clear the codes and see what comes back. These are all communication codes.
2. Disconnect the modules one at a time when it is acting up and see when the communication comes back.
Potential Causes: Controller Area Network (CAN) C Module

Tech Tips: On this vehicle it turned out the Occupant Restraint Controller (ORC) which is on the Controller Area Network (CAN) B bus was actually causing the problem. It was also taking down the Controller Area Network (CAN) C bus at times. I hope this helps.

I think from reading this description C1130 - INFINITI - Engine Signal 1 When Detected

Based on the signal from Engine Control Module (ECM), the Control Area Network (CAN)-Local Arear Network (LAN) converter (CLC) judges that the engine control system is malfunctioning.
There is a communication problem between the engine control module an another module on the CAN serial data bus. Problems with the data bus or the module can bring down the whole system ,make the vehicle not work properly or at all. Your best bet is get it to the dealer ! They have the tools to fix it.

ther

hi, your not going to google a solution to your problem i'm afraid.
u0003 is area network positive open
u0004 is area network positive comm speed low.
in short a can bus fault.

have you checked the can ohms?
have you scoped the can bus?

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