Vauxhall Workshop Service and Repair Manuals

Electronic System Specific Information

• Trouble Code Features
  In a few cases, the diagnostic tester may display a trouble code status or description that looks unfamiliar:
  
  Trouble Code Status:
  Instead of the known PRESENT, NOT PRESENT (and INTERMITTENT) message, you may read UNKNOWN DTC in the tester display. This tells you that the diagnostic software or control unit contains a piece of incorrect information that is unknown to the diagnostic tester and that it is unable to read or evaluate. Both the trouble code number and the trouble code text are not changed in this case.
  
  The above mentioned special cases can not be removed by means of a diagnostic tester function.
• Park Brake Shift Lock
  Now all models with automatic transmissions are additionally equipped with a park brake shift lock.
  The park brake shift lock only allows the movement from selector lever position "P" if the ignition is switched ON and the brake pedal is actuated at the same time. This ensures that the vehicle does not drive off unintentionally.
• Service
  The park brake shift lock operates electro-mechanically. In case of power supply problems or electrical malfunctions the park brake shift lock can be unlocked manually. The procedure is described in the owners manual.