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Rules for cleanliness > < Repairing diesel direct injection system
Safety precautions
Safety precautions
To prevent injuries to persons and/or damage to the injection and glow plug system, the following must be noted:
t  The ignition must be switched off before connecting or disconnecting injection or glow plug system wiring or tester cables.
   
t  If the engine is to be turned at starter speed, without starting, e.g. when checking compression, disconnect 10-pin connector from injection pump.
t  Before disconnecting battery, obtain radio code for radios with anti-theft coding.
t  Disconnecting and connecting the battery must only be carried out with the ignition switched off, as the diesel direct injection system control unit -J248- may otherwise be damaged.
Observe following if test and measuring instruments are required during a road test:
t  Test and measuring instruments must be secured to rear seat and operated by a second person from this location.
If test and measuring instruments are operated from front passenger seat and the vehicle is involved in an accident, there is a possibility that the person sitting in this seat may receive serious injuries when the airbag is triggered.
  N23-0368

Rules for cleanliness > < Repairing diesel direct injection system