1999 Cadillac Deville C1277 ABS Trouble Code

Julius’s question:

The traction control light flashes on and off in my 99 Deville. It had code C1277 when I had it scanned. Something about the ABS module. But the brakes feel fine to me. What should I do?


Yes, the ABS module costs a small fortune on that Cadillac. BUT, I fixed one last month with the same problem. It turned out the electrical connector on the ABS module had gotten corroded. So I unplugged the module and cleaned it out with spray electrical cleaner until the green corossion was gone. Then I applied dielectrical grease (which you can get at any auto parts store) to the connector before snapping it back together. So check that, because being under the hood, water can intrude on that connector and mess things up. Let’s hope it’s that and not a bad expensive ABS module.

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