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Discussion Starter #1
hey new here. I have a 93 Brookland's and having issue with transmission not shifting. Getting codes 24 & 72. Speedo works but trans will not shift.
Anyone have wiring schematics for this? Also does this vehicle have a speed buffer like GM did back then if so where would it likely be? Need help thanks and cheers!
 

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You should have a fuse and a relay for transmission, check that first.
Have you start the car with a booster or something else ?
Transmmission as an ECU, hope you did not damage it.
 

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Fuses for gearbox is good on both. Ecu not sure where that is. I do know that the vehicle speed is from the front wheels. But have no abs codes. Do u know where the ecunis for the transmission?
 

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Check relay too, probably under the hood. Search on the forum, we cannot repeat every thing each time.

ECU as far as I remeber is under steering wheel left side, in the car

It could be also transmission actuator under the car, connexions, loom...

Go from simple to complicated.
 
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