Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSDODGE AND RAM20162500 HD LIMITED, 4D PICKUP, 6.4L ENG VIN J, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEX - 2500 HD & 3500 HDMODULE, POWERTRAIN CONTROL (PCM), 66RFE
2016 Dodge and Ram 2500 HD Limited, 4D Pickup, 6.4L Eng VIN J, 4WD
Module, Powertrain Control (Pcm), 66RFE
2016 Dodge and Ram 2500 HD Limited, 4D Pickup, 6.4L Eng VIN J, 4WDSECTION Module, Powertrain Control (Pcm), 66RFE
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| P0218 | TRANSMISSION HIGH TEMPERATURE OPERATION ACTIVATED |
| P0562 | BATTERY/SYSTEM VOLTAGE LOW |
| P0602 | CONTROL MODULE PROGRAMMING ERROR/NOT PROGRAMMED |
| P0613 | INTERNAL TCM |
| P0706 | TRANSMISSION RANGE SENSOR RATIONALITY |
| P0711 | TRANSMISSION TEMPERATURE SENSOR PERFORMANCE |
| P0712 | TRANSMISSION TEMPERATURE SENSOR LOW |
| P0713 | TRANSMISSION TEMPERATURE SENSOR HIGH |
| P0714 | TRANSMISSION TEMPERATURE SENSOR INTERMITTENT |
| P0716 | INPUT SPEED SENSOR 1 CIRCUIT PERFORMANCE |
| P0721 | OUTPUT SPEED SENSOR CIRCUIT PERFORMANCE |
| P0729 | GEAR RATIO ERROR IN 6TH |
| P0731 | GEAR RATIO ERROR IN 1ST |
| P0732 | GEAR RATIO ERROR IN 2ND |
| P0733 | GEAR RATIO ERROR IN 3RD |
| P0734 | GEAR RATIO ERROR IN 4TH |
| P0735 | GEAR RATIO ERROR IN 5TH |
| P0736 | GEAR RATIO ERROR IN REVERSE |
| P0740 | TCC OUT OF RANGE |
| P0750 | LR SOLENOID CIRCUIT |
| P0755-2C | P0755-2C SOLENOID CIRCUIT |
| P0765-UD | P0765-UD SOLENOID CIRCUIT |
| P0770-4C | P0770-4C SOLENOID CIRCUIT |
| P0841 | LR PRESSURE SWITCH RATIONALITY |
| P0845-2C | P0845-2C HYDRAULIC PRESSURE TEST |
| P0846-2C | P0846-2C PRESSURE SWITCH RATIONALITY |
| P0868 | LINE PRESSURE LOW |
| P0869 | LINE PRESSURE HIGH |
| P0870-OD | P0870-OD HYDRAULIC PRESSURE TEST |
| P0871-OD | P0871-OD PRESSURE SWITCH RATIONALITY |
| P0875-UD | P0875-UD HYDRAULIC PRESSURE TEST |
| P0876-UD | P0876-UD PRESSURE SWITCH RATIONALITY |
| P0882 | TCM POWER INPUT LOW |
| P0883 | TCM POWER INPUT HIGH |
| P0884 | POWER UP AT SPEED |
| P0890 | SWITCHED BATTERY |
| P0933 | HYDRAULIC PRESSURE SENSOR RANGE/PERFORMANCE |
| P0934 | LINE PRESSURE SENSOR CIRCUIT LOW |
| P0935 | LINE PRESSURE SENSOR CIRCUIT HIGH |
| P0944 | LOSS OF HYDRAULIC PUMP PRIME |
| P0987-4C | P0987-4C HYDRAULIC PRESSURE TEST |
| P0988-4C | P0988-4C PRESSURE SWITCH RATIONALITY |
| P1715 | RESTRICTED MANUAL VALVE IN T3 RANGE |
| P1775 | SOLENOID SWITCH VALVE LATCHED IN TCC POSITION |
| P1776 | SOLENOID SWITCH VALVE LATCHED IN LR POSITION |
| P1794 | SPEED SENSOR GROUND ERROR |
| P2700 | INADEQUATE ELEMENT VOLUME LR |
| P2701 | INADEQUATE ELEMENT VOLUME 2C |
| P2702 | INADEQUATE ELEMENT VOLUME OD |
| P2703 | INADEQUATE ELEMENT VOLUME UD |
| P2704 | INADEQUATE ELEMENT VOLUME 4C |
| P2706-MS | P2706-MS SOLENOID CIRCUIT |
| U0002 | CAN C BUS OFF PERFORMANCE |
| U0100 | LOST COMMUNICATION WITH THE ECM/PCM |
| U0121 | LOST COMMUNICATION WITH ABS |
| U1449 | IMPLAUSIBLE ERS MESSAGE RECEIVED |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.