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Hey Stevie. Wondering if you have any suggestions. Yes I’ve searched a lot. Code 42. I’ve done the bypass to many Supras in the past. I have a manual non turbo. Did the splice bypass and still light is coming on. Any suggestions?
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Hi, sorry only just seen your message. Does the odo count up normally when you're driving? If not it suggests the odo has dry solders, or the speed signal isn't reaching the odo (wire between speedometer and odo may have a fault).
If your odo does count up properly, the speed signal is getting from odo to ECU. Most likely cause is a bad solder joint on the bypass, or (less likely) a faulty ECU.
Let us know how it goes please!
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