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Checking glow plug system
Checking glow plug system
Special tools, workshop equipment, testers, measuring instruments and auxiliary items required
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◆ Hand multimeter V.A.G 1526
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◆ Adapter set V.A.G 1594
Test prerequisites:
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● Battery voltage at least 11.5 V
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● Diesel direct injection system control unit (J248) OK.
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● Glow plug strip fuse (S39) OK.
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● Ignition switched off
Test sequence
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‒ Pull connector off coolant temperature sender (G62).
Note:
Engine condition "cold" is simulated when pulling the connector of G62 and when switching the ignition on the relevant glow period is carried out.
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‒ Pull glow plug connector off glow plug.
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‒ Connect multimeter to measure voltage between a glow plug connector and vehicle earth.
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‒ Switch on ignition for approx. 20 seconds
approx. battery voltage
must be displayed.
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‒ If no voltage is present:
=> Current flow diagrams, Electrical fault finding and Fitting locations binder
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