Troubleshooting procedure

Troubleshooting can only be carried out when the fault is present. In other words, specific troubleshooting can only be performed in accordance with instructions (given under 'Diagnosis/troubleshooting' for each fault code) if the entry has the status 'present' in the fault memory.

If the fault is currently 'not present', check the following:

• Diagnostic conditions are met
• All plug connections and ground connections of the affected current path are OK.
• Pull and shake all wiring harnesses in the relevant current path to simulate the conditions which occur when driving the vehicle.