U029D Diagnostic Trouble Code Discussion for March 2026
Nox module a lost comm
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| Help Request | Posted | |
| 2018 Ram 3500 Tradesman 6.7L MIL Lamp on VIN: 3C7WRTBL4J U029D: Lost Communication With NOX Sensor 1/1. Code U029D returns immediately after codes are cleared. Code U010C will also return eventually. The VGT Actuator was replaced as well as NOX sensor 1/1. The codes still returned after the communication wire to pin 93 was overlayed. The PCM was also replace... |
March 02, 2026 |
