Jeep Grand Cherokee Sudden No Start
Mar. 01 2023
Mar. 01 2023

Vehicle: 2014 Jeep Grand Cherokee, 4WD, V6-3.6L, Automatic Transmission/Transaxle

Mileage: 168,502

Problem: Customer states that they were driving the vehicle, and when they stopped, the transmission defaulted to PARK. They shut the engine off and it never cranked over again.

Case Details: The tech connected a scan tool and retrieved two diagnostic trouble codes (DTCs):

  • U11C2 - Implausible/Missing Transmission Message
  • U0101 - Lost Communication with TCM

An ALLDATA Tech-Assist consultant suggested checking power and ground at the transmission control module (TCM). Following the consultant’s advice, the tech found that the power was erratic on the yellow/red (YEL/RED) wire at the TCM, so he checked the TCM fuse 60 in the power distribution center (PDC). NOTE: The PDC is in the engine compartment near the battery. The fuse had full battery voltage on both sides. The tech decided to pull the fuse anyway to get a closer look at the fuse and the PDC terminals. The fuse looked a little burned, but the PDC fuse terminals were clean and tight.

Confirmed Repair: He installed a new fuse and cleared the DTCs. The Jeep cranked and ran normally with no further issues. Easy Fix!

The ALLDATA Tech-Assist team fields cases like this every day. See how Tech-Assist can help your shop save time and money with on-call diagnostic support from ASE-certified Master Technicians. More Tech Tips 

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