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The TFD in my Astra LS only lights up on the right-hand side. I have checked the bulb holders and tried working bulbs in it to no effect. I have noticed that some of the circuit board appears to be fouled (overheated maybe).

Can I just plonk a trip computer in its place? I assume this requires a different plug to the TFD... am I likely to find one on a 94 LS?
 

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You can put a trip computer in but yes it does require the other plug to be wired up or you wont get anything.

Open up the TID and check the traces between the bulbs with a test meter - you'll probably find a break or a burned out part which can be bridged with wire and solder.

10 minute job mate.
 

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If one bulb is working and the other dead then its probably a burnt out track in the TID itself - also put two new bulbs in just in case one of the old ones caused the short/burnout.
 
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