S60 AWD L5-2.5L Turbo VIN 59 B5254T2 (2005)
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See also: Information about the CAN network, structure and function See: Description and Operation/Information About the CAN Network, Structure
And Function
Both "babbling control modules" and "disruptive control modules" can have intermittent faults that are not necessarily apparent when the car is in the
workshop. In some cases, "disruptive control modules" do not set diagnostic trouble codes (DTCs). The following method should therefore be used to
fault-trace:
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Measure the voltage between the green and white CAN cables in the relevant CAN network. The average voltage value is normally 0.5 V
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If a control module is "disruptive", the voltage is usually above 0.7 V
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If this is the case, cut the power to the control modules in accordance with the method described about to find the fault cause
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Verify that the correct control module was faulty by repeating the fault, with and without the faulty control module connected in the CAN network.
Note! Following faults with "babbling" or "disruptive" control modules, some control modules may remain in "Limp-home mode" even after
the ignition key has been removed and inserted in the ignition switch again. To remedy this, disconnect and reconnect the battery negative
terminal to restore the control modules to normal function.
VIDA (Vehicle Information & Diagnostics For Aftersales)
VIDA (Vehicle Information & Diagnostics for Aftersales)
During the second half of 2004, VADIS (Volvo Aftersales Diagnostic and Information System) was phased out and replaced by VIDA (Vehicle
Information & Diagnostics for Aftersales). The purpose of VIDA is to support service providers in repairing and servicing Volvo vehicles. VIDA
provides Service and Parts information, as well as diagnostic fault tracing, and software downloads. As in VADIS, these areas are integrated into one
single application. All functionality that could be found in VADIS will be found in VIDA. However, in some particular areas, e.g., the diagnostic work
flow, search functionality, and the Parts catalogue, VIDA contains considerable enhancements when compared to VADIS.
Volvo's VIDA (Vehicle Information & Diagnostics for Aftersales) system ties together service and repair data, parts data, service bulletins, software
(firmware) downloads, fault tracing and on-board diagnostic as well as other related information to decrease service time.
Much of the diagnostic information provided here is presented in a manner that assumes the technician is using the web-based Volvo diagnostic
system (VIDA) to diagnose the vehicle. Volvo does not provide any information based on performing diagnosis with a third party diagnostic tool.
Diagnostic Trouble Code Descriptions
For information regarding B, C, P, U and Manufacturer Code Descriptions - See: Testing and Inspection/Diagnostic Trouble Code Descriptions
Diagnostic Trouble Code Tests and Associated Procedures
For information regarding diagnosis of all B, C, P, U and Manufacturer Codes - See: Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures
Checking CAN-Net's Rest Status
Checking Can-net's rest status
Preparations for power supply, CAN network
General
When the vehicle sets the communication buses and the control modules in "sleep mode", power consumption drops. Factors such as whether the vehicle
is locked, the alarm is on or off or whether any doors are open affect the rate at which the vehicle will reach standby power consumption. The lowest
power consumption is achieved the quickest when the vehicle is locked, the alarm is on and the vehicle's doors are closed.
Preparations
Ensure that all lighting is switched off.
Ensure that the diagnostic tool is not connected in the vehicle.
Open the tailgate or trunk lid and bonnet and set the locks to the deadlocked position using a screwdriver for example.
Open the driver's and passenger doors and set the locks to the deadlocked position using a screwdriver for example.
Close the rear doors, remove the key and lock and alarm the vehicle. Never use reduced alarm as it then takes longer for the CAN network to continue in
"sleep mode".
Wait approximately 3 minutes (5 minutes for C70 (06-)) so that the vehicle's standby current consumption drops.
Note! Do not open any doors or the test will have to be restarted from the beginning.
Continue - Measuring the voltage level on the CAN network.
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