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Home >> Porsche >> 2003 >> Boxster Base, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Exterior Lights, Lamps, Switches - Diagnosis >> System HBA 01 >> System description >> Diagnosis

System description: Diagnosis

When the ignition is switched on, the servomotors for HBA  are set to the minimal position and subsequently returned to the initial position. There is a fault in one or both motor circuits if the servomotors are not set to minimum position when the ignition is switched on. The angle sensor (axle position sensors) are faulty if the servomotors are not set to high-beam position when high beam is activated (terminal 58 on).

NOTE: When high beam is activated, the servomotors are set to high-beam position only if the parking light is switched on (terminal 58).
NOTE: If there are faults in the motor circuit, the fault memory will be updated only after the ignition has been switched off and then on again. After remedying the fault cause, switch the ignition off and then on again and subsequently erase the fault memory.

If the fault cause has been remedied, faults in the sensor circuit will be automatically deleted when the ignition is switched off and then on again.

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