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Component Tests and General Diagnostics




1. Connect Testbook to the vehicle and confirm that the fault code(s) displayed relate to an EVAP system fault.
2. Examine components in fuel and EVAP system for damage or poorly connected joints.
3. Repair or replace components to rectify any faults found, then reset the Malfunction Indicator Lamp (MIL) using Testbook.
4. Carry out Drive Cycle.
5. Using Testbook confirm that the Evaporative Loss Control (ELC) Inspection and Maintenance (IM) flag has cleared. This procedure should confirm that the ELC test was carried out during the drive cycle and that the fault was cured.
6. If the IM flag is still shown, use Testbook to interrogate the engine management system to ascertain which of the following situations exists:
- If a fault code is shown, then further investigation is required, proceed to the next step.
- If the IM flag is still shown, but no faults are indicated the conditions for the ELC check have not been met and the drive cycle must be repeated.
7. Connect the EVAP Diagnostic Station to the service port and carry out the procedures given in the operating instructions supplied with the equipment.







8. Rectify faults indicated by the EVAP Diagnostic Station and return to step 4.