Good afternoon. I am looking at an automotive type board that has two transceivers on it. One is for the drivetrain and the second one is for the body datalink. There was some water intrusion damage on the circuit for the drivetrain link which I repaired and that circuit is working fine. The other transceiver from what I can tell (non-damaged circuit) is not working. When I check signals on Tx and Rx from the micro, the drivetrain circuit has a nice clean signal. The other one has nothing. I removed the transceiver hoping to see a signal of sorts on the Tx and Rx from the micro. Nothing. Am I approaching this wrong? I was thinking possibly a short in the transceiver so eliminating it may allow me to see a signal from micro???
The transceiver is a PCA82C251.
https://www.nxp.com/docs/en/data-sheet/PCA82C251.pdf
The transceiver is a PCA82C251.
https://www.nxp.com/docs/en/data-sheet/PCA82C251.pdf
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