Volvo Workshop Manuals
XC70 L5-2.5L Turbo VIN 59 B5254T2 (2003)
Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Communications Control Module > Component Information > Testing and Inspection > Reading and Clearing Diagnostic Trouble Codes > Page 54
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
Check the communication cable (k-line) between diagnostic outlet #7 and central electronic module (CEM) #D6 and other connected control
Caution! In case of malfunction on this communication cable, communication cannot be established on either the low or high-speed
For communication problems with control units onthe high-speed network, check communication cables between diagnostic outlet #6/ #14 and
For communication problems with control units onthe low-speed network, check communication cables between diagnostic outlet #3/#11 and
Also check the communication cables for the low and high-speed net between the central electronic module (CEM) and the other connected
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
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
If no malfunctions were found after troubleshooting according to above, try with a new cable harness and/or new VCT2000.
If no malfunctions were found after troubleshooting according to above, try performing a complete system reset of VIDA.
Checking wiring and terminals See: Testing and Inspection/Component Tests and General Diagnostics/Checking Wiring and Terminals/Checking
Continue - Fault Found
Checking communication errors, car model V70 (-00), V70 XC and S70/C70
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