Hey all. I have an 11 Wrangler Sport, V6 w 4-speed auto tranny, and the ABS/Traction Control/Brake lights in my gauge cluster are lit up like a Christmas tree. Hard fault, never goes away, can't reset. The codes are as follows:
PCM:
U1417 - implausible left wheel distance signal received. (This one can be reset but comes back).

ABS:
C2200 ABS module internal
C1015 right front wheel speed sensor circuit
C1020 left rear wheel speed sensor circuit

I replaced RF and LR sensors and no change. RF sensor that came out of it had milky greasy splooge on it. New battery, alternator tests fine. I'll check the connector and pins and put some dialectic grease in there. But any other troubleshooting ideas? Anyone have the pinout diagram for the ABS Module and a schematic for the circuitry so I can test power and ground and continuity on communication line? Any thoughts on what this likely is? It points to the Module being bad but it's an awfully expensive part to throw at it and pray. Help appreciated.

 

The combination of codes U1417, C1015, C1020 and especially C2200 often points to a problem related to the ABS module itself or its wiring, rather than the sensors if these have already been replaced. Before replacing the module, carefully check the wiring harness between the sensors and the ABS module, the connectors (oxidation, bent pins, moisture) and the continuity of the wires, especially near the wheel arches and the ABS unit.

 

Thank you! It was the ABS sensor. Checked power to sensors, ground and power at all pins and the connector side, continuity, etc. I found the Holy Grail - a part-number matching remanufactured ABS module out of China for under $1000. I installed that and was then getting a Hydraulic Control Unit failure code, so I replaced the HCU too. Now my only code is for the C2206 VIN mismatch on the new module. I have a bidirectional Autel. It successfully communicated with the ABS module such that I successfully ran the bleed process. But when I try to rewrite the VIN in the module I get a message, "function not supported by ECU." And when I try to run the ABS module initialization process, it tells me to make sure the Jeep is on level ground, the wheels are straight and the brake pedal is not depressed. But when I run the initialization process, it aborts due to "conditions not correct." I'm stumped. The only other code I have is the passenger airbag restraint circuit open, which is often traced to the clockspring in the steering wheel. Any thoughts? Would that code maybe prevent the ECU from confirming that the wheels are straight? Why can't I rewrite the VIN? Much appreciated.

 

If you have a confirmed clockspring problem, that's likely why the wheels can't be confirmed as straight - the sensor is integrated into the clockspring. I would think you could read your steering angle from your Autel?

 

Thank you. And of course, it meant to say it was the ABS "module" in the last post. I will try to do that and fix the SRS code by whatever means. I wonder though, how could the passenger SRS code go through the clockspring? Anyway, I'll chase it down, try to read the live data on the steering angle and try again. Thanks again.