Fault code 1: Elimination:
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 Porsche Boxster, 2003 Porsche Boxster, 2002 Porsche Boxster, 2001 Porsche Boxster, and 2000 Porsche Boxster. However, it is still accessible from the selected car via links, so may be relevant.
- Switch off ignition
- Pull plug off the control module
- Pull plug off the servomotor for HBA
- Check for open circuit in the supply leads to the servomotor for HBA,
terminals 1, 2, 3, 4
Ohmmeter display < 5 Ohm
- Check for short to B+ in the supply leads to the servomotor for HBA
Ohmmeter connected to terminals 1, 2, 3, and 4; measure resistance to ground
Ohmmeter display "INFINITY" Ohm
- Check for short circuits between the supply leads.
If no fault is detected in the wires, replace the servomotor for HBA. Also check the plug on the wiring harness side and replace if necessary.