Activating/Reading out Components/Functions
Activating/reading out components/functions
Conditions
Caution! Reference values from a vehicle (XC90) with good radio reception shall be used as comparison when reading out. Read out from a vehicle (XC90) with good radio reception.
- Park the vehicle outdoors in a position with good radio reception.
- Search through the whole frequency range and save all readout values. Then these saved values shall be used as reference values.
- Make an exact note of the vehicle's position and direction.
When reading out from vehicles for troubleshooting:
- Park this vehicle in exactly the same position and in the same direction as the vehicle from which the reference values were obtained.
- When reading out, compare the readout values from the vehicle in question and the reference values.
FM-band:
Select 1 to read out which antenna is active as well as signal strength and noise level for the FM-band.
Select 2 to enable manual activation of the desired antenna as well as read out signal strength and noise level for the FM-band.
AM-band:
Select 3 to read out signal strength for the AM-band.
Select an alternative.
1 - Reading out components/functions, FM
2 - Activating and reading out components/functions, FM
3 - AM
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Reading out components/functions, FM
Reading out components and functions
Caution! Reference values from a vehicle (XC90) with good radio reception shall be used as comparison when reading out. Read out from a vehicle (XC90) with good radio reception.
- Park the vehicle outdoors in a position with good radio reception.
- Search through the whole frequency range and read out from all radio stations found with automatic search. Note and save all readout values. Then these saved values shall be used as reference values.
- Make an exact note of the vehicle's position and direction.
When reading out from vehicles for troubleshooting:
- Park this vehicle in exactly the same position and in the same direction as the vehicle from which the reference values were obtained.
- When reading out, compare the readout values from the vehicle in question and the reference values.
- Ignition on
- Engine running or battery charger on.
- Radio on.
Activate readout of components by clicking on the symbol for VCT2000.
Search through the whole frequency range and perform a read out from all radio stations found with automatic search.
When reading out, it is checked which antenna is active as well as signal strength and noise level for the antenna in question.
The comparison for deviations from reference values shall be performed on the readouts from stations that have a signal strength below 175.
If the signal strength deviates more than approx. 30 from the reference values:
- Go back in the troubleshooting and select alternative 2 to enable manual activation of the desired antenna as well as read out signal strength and noise level.
Other information
- .
- To access/replace antenna module (ATM): Receiver AM/FM (ATM), replacing Service and Repair.
- Component description, antenna flex conductor Description and Operation
- Checking wiring and terminals Checking Wiring and Terminals
Do you want to exit fault-tracing?
Yes - Exit fault-tracing
No - Attempt New Test
Numeric Result 0 - Communication error
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Activating and reading out components/functions, FM
Activating and reading out components/functions, FM
Activating and reading out components
Caution! Reference values from a vehicle (XC90) with good radio reception shall be used as comparison when reading out. Read out from a vehicle (XC90) with good radio reception.
- Park the vehicle outdoors in a position with good radio reception.
- Search through the whole frequency range and read out from all radio stations found with automatic search. Read out signal strength and noise level for both main antenna and sub-antenna. Note and save all readout values. Then these saved values shall be used as reference values.
- Make an exact note of the vehicle's position and direction.
When reading out from vehicles for troubleshooting:
- Park this vehicle in exactly the same position and in the same direction as the vehicle from which the reference values were obtained.
- When reading out, compare the readout values from the vehicle in question and the reference values.
- Ignition on
- Engine running or battery charger on.
- Radio on.
Activate readout and activation of components/functions by clicking on the symbol for VCT2000.
Search through the whole frequency range and read out from all radio stations found with automatic search. Read out signal strength and noise level for both main antenna and sub-antenna.
When reading out, the signal strength and noise level are checked for the active antenna.
The most accurate comparison for deviations from reference values are performed on the readouts from stations that have a signal strength below 175.
If the signal strength deviates more than approx. 30 from the reference values:
- Check cables and connections for open circuit and contact resistance.
- Check the antenna flex conductor for open circuit on the antenna that deviates most from reference values.
Remedy as necessary.
If no malfunction was found, report the result of troubleshooting to the sales company/importer according to normal report procedure.
Other information
- Description of activations and readouts, FM Description of Activations and Readouts, FM
- To access/replace antenna module (ATM): Receiver AM/FM (ATM), replacing Service and Repair.
- Component description, antenna flex conductor Description and Operation
- Checking wiring and terminals Checking Wiring and Terminals
Do you want to exit the readout?
Yes - Exit fault-tracing
No - Attempt new test
Numeric Result 0 - Communication error
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Reading out components/functions, AM
Reading out components/functions, AM
Reading out components and functions
Caution! Reference values from a vehicle (XC90) with good radio reception shall be used as comparison when reading out. Read out from a vehicle (XC90) with good radio reception.
- Park the vehicle outdoors in a position with good radio reception.
- Search through the whole frequency range and read out from all radio stations found with automatic search. Note and save all readout values. Then these saved values shall be used as reference values.
- Make an exact note of the vehicle's position and direction.
When reading out from vehicles for troubleshooting:
- Park this vehicle in exactly the same position and in the same direction as the vehicle from which the reference values were obtained.
- When reading out, compare the readout values from the vehicle in question and the reference values.
When reading out from the AM-band the signal strength may vary depending on at what time the readout is performed.
- Ignition on
- Engine running or battery charger on.
- Radio on.
Activate readout of components by clicking on the symbol for VCT2000.
Search through the whole frequency range and perform a read out from all radio stations found with automatic search.
When reading out, the signal strength of the selected radio station is checked.
The most accurate comparison for deviations from reference values are performed on the readouts from stations that have a signal strength below 145.
If the signal strength deviates more than approx. 25 from the reference values:
- Check cables and connections for open circuit and contact resistance.
- Check the antenna flex conductor for open circuit on the AM-antenna.
Remedy as necessary.
If no malfunction was found, report the result of troubleshooting to the sales company/importer according to normal report procedure.
Other information
- To access/replace antenna module (ATM): Receiver AM/FM (ATM), replacing Service and Repair.
- Component description, antenna flex conductor Description and Operation
- Checking wiring and terminals Checking Wiring and Terminals
Do you want to exit the readout?
Yes - Exit fault-tracing
No - Attempt New Test
Numeric Result 0 - Communication error
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Communication error
Communication fault
Communication has been interrupted for one of the following reasons:
- The ignition is switched off
- VCT2000 disconnected from the data link connector (DLC)
- VCT2000 disconnected from the VIDA cart
- Communication problems in VIDA application or in car.
- No voltage in the data link connector (DLC).
Check therefore:
- That the control module power supply and ground terminal are fault-free.
- That the fuse for the data link connector (DLC) is intact.
- that the ignition is on
- that the battery voltage (system voltage) is normal (approximately 12 V).
If necessary a battery charger can be connected during the test.
For information about charge currents and the battery, see: Battery, charging Battery, Charging
- that VCT2000 is correctly connected to the VIDA cart and the data link connector (DLC)
- that VCT2000 and the wiring is fault-free.
Other information
- For information about fuse and terminal numbers, see the relevant Wiring Diagram.
Try to establish communication again or exit reading off diagnostic trouble codes (DTCs). Depending on the communication fault, select one of the following options.
1. Try again
2. Fault-trace more comprehensively for the communication problem that has occurred
3. Exit fault-tracing / Read off from the next system.
Which alternative is requested?
1 - Activating and reading out components
2 - Checking communication errors
3 - Exit fault-tracing
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Checking communication errors
Checking communication errors, car model V70 (00-), V70 XC (01-) / XC70, S60, S80 and XC90
Hint: Test the communication with another corresponding vehicle to decide if the malfunction is in the vehicle or in VIDA/VCT/cable harness. If the communication works on another vehicle, the malfunction is in the vehicle.
Hint: For current information about each circuit and signals, see wiring diagram and signal description for each system.
Different speed on the CAN-communication can lead to problems
Volvo's vehicles have different speed of communication on the high-speed part of the CAN-network (HS-CAN), depending on model year.
- Model year -2004 communicates with 250 kbit/s.
- Model year 2005- communicates with 500 kbit/s.
Due to this, it is very important to specify correct vehicle profile before any communication is started with the vehicle's HS-CAN. This is normally done by pressing on " Retrieve VIN" or by manually specifying vehicle parameters under "Vehicle profile".
If the wrong model year has been selected, it may lead to blocking of the CAN-net, diagnostic trouble codes being stored in several control modules or missing response from control modules at continued communication. The following control modules may be affected by this problem:
- Brake control module (BCM)/(ABS)
- Engine control module (ECM)
- Electronic Throttle Module (ETM)
- Suspension Module (SUM)
- Central electronic module (CEM)
- Transmission control module (TCM)
- Steering wheel angle sensor module (SAS)
- Steering Wheel Module (SWM)
- Electrical Power Steering Module (EPS)
If this happens, take the following action:
- Turn off the ignition and remove the ignition key. Insert the key again in position II.
- If the above does not work, remove the battery cable and connect it again after a minute to reset the control modules.
- Select the correct vehicle profile in VIDA and erase the diagnostic trouble codes. Check that the symptoms have disappeared.
Diagnostic outlet
- Check the voltage feed to diagnostic outlet #16. The voltage shall match battery voltage.
- Check the cable for power ground and signal ground to diagnostic outlet #4 and #5.
Hint: When VCT2000 is connected to the diagnostic outlet (is supplied with voltage), the indicator diode shall be activated with a green light. Then the indicator diode flashes quickly when communication takes place with a control module. In case of certain internal malfunctions on VCT2000 the indicator diode is activated with a red light!
Communication cables
- Check the communication cable (k-line) between diagnostic outlet #7 and central electronic module (CEM) #D6 and other connected control modules for open circuit, short-circuit to ground and short-circuit to voltage.
Caution! In case of malfunction on this communication cable, communication cannot be established on either the low or high-speed network. First when communication takes place on this cable, the low and high-speed cables between the diagnostic outlet and central electronic module (CEM) are connected to the rest of the network in the vehicle. This is controlled via a relay in the central electronic module (CEM). This relay is only found on vehicles of model year -2004.
- For communication problems with control units onthe high-speed network, check communication cables between diagnostic outlet #6/ #14 and central electronic module (CEM) #B7/ #B8 for open circuit, short-circuit to ground and short-circuit to voltage according to references above.
- For communication problems with control units onthe low-speed network, check communication cables between diagnostic outlet #3/#11 and central electronic module (CEM) #B19/#B20 for open circuit, short-circuit to ground and short-circuit to voltage according to references above.
- Also check the communication cables for the low and high-speed net between the central electronic module (CEM) and the other connected control modules according to troubleshooting above.
Control modules
- Check that the control module's voltage feed and ground connection are trouble-free.
Caution! If none of the above checks help, try reading out diagnostic trouble codes in the central electronic module (CEM). Done via VIDA vehicle communication. A prerequisite for being able to communicate with the control modules in the car is that the central electronic module (CEM) is active and can be communicated with. If communication is not possible with the central electronic module (CEM), check the voltage feed and ground for the central electronic module (CEM).
VCT2000 and cable harness
- Connect VCT2000 to the vehicle so that it is supplied with voltage. Test VCT2000 by selecting the system's self-test and VCT Test in the VIDA main menu. If any malfunction is found according to the test, first replace the cable harness then the VCT2000, if the test still indicates a malfunction.
- If no malfunctions were found after troubleshooting according to above, try with a new cable harness and/or new VCT2000.
VIDA
- If no malfunctions were found after troubleshooting according to above, try performing a complete system reset of VIDA.
Other information
- Checking wiring and terminals Checking Wiring and Terminals
Continue - Troubleshooting information
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Troubleshooting information
Fault-tracing information
Fault-tracing information
Fault-tracing communication problems is now finished.
Do you want to try establishing communication again?
YES - Activating and reading out components
NO - Exit fault-tracing
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