# U0140 on the 2013 Dodge Grand Caravan

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name U0140

- [10160017](https://open.wenmarpro.com/bulletins/10160017), 2019-05-20: Flash: Powertrain Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module \(PCM\) with new software. A small number of customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the Technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\) set in the PCM: ? U0140 \- Lost Communication With Body Control Module \(BCM\) \(RT Vehicles Only\). ? P0456 \- Evap System Small Leak. Transmission Enhancements are also included with this software release. These changes include the following: ? Garage shift engagements into D may be harsh at times after shutdowns of 10\-30 minute duration. ? 5/6 Upshift timing adjusted to improve top speed performance \(markets where speeds in excess of 161 kph \(100 mph\) are permitted\). NOTE: The Transmission Enhancements only apply to vehicles equipped with the 3.6L engine \(sales code ERB\).
- [10138980](https://open.wenmarpro.com/bulletins/10138980), 2018-06-04: Flash: Powertrain Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module \(PCM\) with new software. A small number of customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the Technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\) set in the PCM: \*\*JC Vehicles 3.6L: · P0335 \- Crankshaft Position Sensor Circuit. P2610 \- PCM Internal Engine Off Timer Performance. · U0140 \- Lost Communication With Body Control Module \(BCM\). · P0456 \- Evap System Small Leak.\*\* JC Vehicles 2.4L: · P0456 \- Evap System Small Leak. JS Vehicles: · P0456 \- Evap System Small Leak. RT Vehicles: · U0140 \- Lost Communication With Body Control Module \(BCM\). · P0456 \- Evap System Small Leak. The following transmission enhancements are also included in this software update: · Garage shift engagements into D may be harsh at times after shutdowns of 10\-30 minute duration. · 5/6 Upshift timing adjusted to improve top speed performance \(markets where speeds in excess of 161 kph \(100 mph\) are permitted\).