DTC U121E Dodge
Electronic Control Unit (ECU) Performance EEPROM Integrity
Electronic Control Unit (ECU) Performance EEPROM Integrity
Description
The module runs the program to detect an internal fault when power up is commanded. The only requirements are voltage and ground. This program runs even if the voltage is out of the valid operating range.
Cause and Solution
The module has detected an internal malfunction.
Video Guide
Diagnostic Info
- DTC Code: U121E
- Brand: Dodge