
2014 Ram 4500 SLT 6.7L MIL Lamp on, Limp in mode
Hi thanks in advance for any insight. I have repaired the lost comm. Problem finding a pushed out pin at connector i200 and a broken wire at fuse 18 in the pdc. Which brought about the last 2 dtc's . I started with p21c4 following diagnostic steps for that...
FIX posted 4/26/2020
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Message Closed w/FIX
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VIN | 3C7WRLEL9E |
Engine | 6.7 L / 6 cyl / DIESEL |
Trans | 6-speed Automatic (Electronic) |
Delivery | Fuel Injection / DIESEL |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp on, Limp in Mode |
Occurs | Always |
Trouble Codes
P21C4 | Reductant line heater relay control circuit high |
P2BAC | ecm has commanded limp in mode |
U0101 | No Transmission Bus Message |
U11C1 | Reductant control module received implausible data from pcm |
Message Closed w/FIX
Vehicle Data
2014 Ram 4500 SLT
VIN | 3C7WRLEL9E |
Engine | 6.7 L / 6 cyl / DIESEL |
Trans | 6-speed Automatic (Electronic) |
Delivery | Fuel Injection / DIESEL |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp on, Limp in Mode |
Occurs | Always |
Trouble Codes
P21C4 | Reductant line heater relay control circuit high |
P2BAC | ecm has commanded limp in mode |
U0101 | No Transmission Bus Message |
U11C1 | Reductant control module received implausible data from pcm |