U1146 JEEP - Lost Communication With External Memory
U1146 JEEP Possible Causes
- Faulty Transmission Control Module (TCM)
- Transmission Control Module (TCM) harness is open or shorted
- Transmission Control Module (TCM) circuit poor electrical connection
Cost of diagnosing the U1146 JEEP code
The cost of diagnosing the U1146 JEEP code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
U1146 JEEP Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
U1146 JEEP Meaning
The first time the vehicle is started, the Transmission Control Module (TCM) receives hydraulic calibration data from an external EEPROM (located in the transmission) and stores this information in the EEPROM of the TCM. If the TCM can not read the external EEPROM in the transmission this DTC will set. It takes two consecutive failures to turn on the MIL.