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Checking glow plugs > < Checking glow plug system

A4 Mk1

Checking operation
Checking operation
–  Detach glow plug connectors from glow plugs.
–  Connect hand-held multimeter (voltage test range) between engine earth and one of the glow plug connectors.
–  Start final control diagnosis and activate glow plug relay -J52- → Chapter.
t  Specification: approx. battery voltage (every 5 seconds)
If specification is not obtained:
–  Rectify open circuit or short circuit in wiring as necessary → Current flow diagrams, Electrical fault finding and Fitting locations.
   

Checking glow plugs > < Checking glow plug system