Troubleshooting Error Codes on 2022 Jeep Grand Cherokee L After Installing Curt T-Connector Wiring

Updated 08/31/2022 | Published 08/30/2022

Question:

Have you experienced troubles with the Grand Cherokee L Active Lane Management ALM Unavailable Service Required / Adaptive Cruise Control and Active Lane Management Off after installation of the C27BR wiring kit? If so, how did you solve the issue?

asked by: John S

Expert Reply:

If the Curt T-Connector Vehicle Wiring Harness # C27BR was installed correctly on your 2022 Jeep Grand Cherokee L you shouldn't be getting any of those lights. The only time you would see those lights is if the kit wasn't installed correctly or if the T-Connector is malfunctioning.

The tees in this wiring kit let the OEM circuits flow directly through and basically just use those circuits as triggers for when to send power back to your trailer wiring. The trailer wiring is powered via the 12V power lead that comes with the wiring kit.

What you might try doing is removing the tees with this wiring kit and plugging the OEM connectors back together. If this resolves the issue then I would venture to say the wiring kit is the issue and I'd pursue a warranty replacement.

expert reply by: Jon G