So this is my first Z and Nissan for that matter. Recently when I started it up the ABS TCS and SLIP lights all came on and did not go off. I pulled the codes and on the ABS module, I was getting code C1103 FR RH Sensor-1. When I look at live data it shows it cannot connect to the FR RH sensor. So I figured easy enough, so I ordered a new wheel speed sensor and put it in. I cleared the codes and then disconnected the battery and installed the new sensor. Still throws the same C1103 code. I tried to clear it but it just instantly comes back up. Has anyone else had this issue? What should I look at next? I have tried Google and search on this forum but have turned up empty-handed. Maybe I have crappy search skills?

 

ABS Wheel Sensor not properly installed
ABS Wheel Sensor rotor or encoder damaged
ABS Wheel Sensor rotor loose on axle
Faulty ABS Wheel Sensor
ABS Wheel Sensor harness is open or shorted
ABS Wheel Sensor circuit poor electrical connection Faulty Anti-Lock Brake System (ABS) Actuator and Electric Unit (Control Unit)

Additionally, here is the FSM for all year Zs. Once you have selected your vehicle's year, the section you will be looking for is "brc.pdf". That section contains everything for the Braking Control System as well as diagnosis and fixes.

https://www.nicoclub.com/archives/ni...e-manuals.html

 

Thank you for the info. I was able to finally do some testing. It appears I do not have continuity from the ABS control unit to the wheel speed sensor wire harness. I have pulled apart most of the engine compartment and can't seem to find where the break is. Based on the wiring diagrams it appears these wires go straight from the wire harness to the ABS control unit. Would I be correct to assume I can just run new wire from the speed sensor harness straight to the ABS unit?

 

No continuity between ABS control unit and wheel sensor wire harness. Ran new wires and fixed. Thanks for pointing me in the right direction.

 

what colors are the wires at the abs unit ? I’m trying to do the same thing but can’t find the wiring diagram