Bruce Nunnally Posted January 30, 2017 Report Share Posted January 30, 2017 Received on facebook page: "I own a 1996 Sedan deville. Having problems with ABS traction control. Tried to join group, could not get through. Can someone call me? [number withheld]" Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
Bruce Nunnally Posted January 30, 2017 Author Report Share Posted January 30, 2017 I responding asking if he has any DTCs, and what symptoms he is seeing that led to question. Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
Bruce Nunnally Posted January 30, 2017 Author Report Share Posted January 30, 2017 Response: "TC037 left rear wheel speed sensor continuity. Just rewired and continuity doesn't seem to be an issue. Unfortunately, when trouble code comes on, locked out of first gear. Is there a relationship with PCM?" Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
Bruce Nunnally Posted January 30, 2017 Author Report Share Posted January 30, 2017 my response: you can check the circuit back through PCM using approach here http://www.autorepairinstructions.com/archives/abs-traction-control-wheel-speed-sensor/ basically use ohm meter to check for low but not no resistance back through connector pins. I would suspect a) disconnected wheel sensor problem however once you know connection good. Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
rockfangd Posted January 31, 2017 Report Share Posted January 31, 2017 agreed. I would inspect the harness to the left rear hub assembly. Although uncommon I have seen them unplugged before. Mainly from when something was done to the knuckle. Make sure the harness is routed into the clips properly, if it is not it may be pulling and losing connection. If all is good unplug the plug to the hub and look at the pins in the plug (female pins) and see if they are opened up where the male pin inserts. Can be hard to see but is a more common problem. GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
BodybyFisher Posted January 31, 2017 Report Share Posted January 31, 2017 Does he have any noise coming from the hub? Have him do s-turns and see if he gets a growl. It is probably wiribg but a defective hub is a thought. Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
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