Operation CHARM: Car repair manuals for everyone.

Resetting the Car






Resetting the car




- Ignition on.
When downloading software, the control module may stick in programming mode.
A reset can be carried out if it is not possible to exit this mode.

Note! When the control modules are reset, no previous faults are remedied if the software installation is not complete.When programming or resetting the car, the ABS lamp will light. This is rectified by removing/inserting the key in the ignition switch.

Click on the VCT2000 symbol to reset.





Continue - DONE

Numeric Result 0 - Communication fault

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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.





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Checking communication





Checking the voltage supply and ground, central electronic module (CEM)

Checking the power supply and ground terminals
Check that the battery is charged.
Check the voltage supply and ground terminal for the central electronic module (CEM). See: Checking the supply voltage/ground terminal Checking The Voltage/Ground Terminal, Central Electronic Module (CEM) Checking the supply voltage/ground terminal Checking The Voltage/Ground Terminal, Central Electronic Module (CEM).
Remedy as necessary.

Other information
- Connecting the breakout box Connecting The Breakout Box, Central Electronic Module (CEM) Connecting the breakout box Connecting The Breakout Box, Central Electronic Module (CEM)
- Signal specification Signal Description, Central Electronic Module (CEM)
- See the relevant wiring diagram for information about circuit and ground terminals in the bodywork
- Checking wiring and terminals Checking Wiring and Terminals
- Control module relay box passenger compartment Control Module Relay Box Passenger Compartment

Continue - Symptom check, communication between the vehicle and VIDA

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Symptom check, communication between the vehicle and VIDA
Check the communication between the vehicle and VIDA. Read off the control module side for the central electronic module (CEM). Read off the control module ID by clicking on the VCT2000 symbol.





Is communication established?

Yes - Exit fault-tracing / Read off from the next system.

No - Fault-tracing information

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Fault-tracing information




Fault-tracing communication problems is now finished.

Do you want to try establishing communication again?

YES - Resetting the car

NO - Exit fault-tracing / Read off from the next system.

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