When Monitored And Set Conditions
WARNING: This page is about a different car, the 2014 RAM 3500 HD and 2014 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
When Monitored:
This diagnostic runs continuously when the following conditions are met:
- The ignition is on.
- No active CAN DTCs (U0001-00, U0002-00).
- Body Control Module (BCM) is configured correctly.
Set Conditions:
- CAN C Bus messages not received from the Transmission Control Module (TCM) for approximately 500ms.
Default Actions:
- MIL is illuminated.
- Vehicle is placed into a limp-home mode.
- If equipped, the Start/Stop feature will be disabled.
| Possible Causes |
|---|
| CAN BUS CIRCUITS OPEN OR SHORTED |
| DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES |
| TRANSMISSION CONTROL MODULE (TCM) POWER AND GROUND |
| BCM NOT CONFIGURED CORRECTLY |
| TRANSMISSION CONTROL MODULE (TCM) |
| MODULE THAT SET THIS DTC |