It is important to have a diagram for a glow plug relay. The diagram can be found in book for the specific car, or online in car forums.
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the glow plug relay can be found in the super rapist tard section of your beetle
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well if you have a code for the glow plug circuit then you may or may not have a glow plug issue. Could be wiring or relay or the controller. If all is ok glow plugs typically have 0.05-0.08 ohms of resistance when bench tested out of vehicle. Good luck hope this helps.
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Go to fordtruckenthusiasts.com and post your question.They have a forum for your vehicle and you will get a quick and accurate reply.Good luck.
Inside cab, to the left of the steering column under the dash is the relay / fuse panel. On that panel is the glow plug relay.
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