Monitoring function - control position diagnosis
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 BMW Z4, 2008 BMW X5, 2008 BMW X3, 2008 BMW 528xi, and 2008 BMW 528i. However, it is still accessible from the selected car via links, so may be relevant.
P1030
Control position diagnosis is used to monitor the movement of the variable valve train system. If the actual angle movement is determined to be lower than a threshold and the current PWM signal (depending on battery voltage) is greater than a threshold an error is detected. If an error is detected, the appropriate DTC will be stored:
Error Symptoms:
ERROR SYMPTOMS
| control position fault | P1030 |