Possible Causes
WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| POWER TAKE-OFF (PTO) SYSTEM NOT INSTALLED CORRECTLY |
| BLOWN FUSE 08-20A |
| PTO/AUX 5 RELAY (AUX PDC FUNCTIONAL NAME: 'RELAY 07') |
| TRANSMISSION CONTROL MODULE |
| PTO SWITCH INPUT CIRCUIT SHORT TO GROUND |
| PTO SWITCH INPUT CIRCUIT OPEN/HIGH RESISTANCE |
| PTO RELAY ENABLE CIRCUIT SHORT TO GROUND |
| PTO RELAY ENABLE CIRCUIT OPEN/HIGH RESISTANCE |
| PTO RELAY OUTPUT SUPPLY CIRCUIT SHORT TO GROUND |
| PTO RELAY OUTPUT SUPPLY CIRCUIT OPEN/HIGH RESISTANCE |
| AUXILIARY POWER DISTRIBUTION CENTER (PDC) |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L .