RAM

1807620

2020-11-03 · NHTSA 10224073

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제조사 요약

영어 원문

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following Diagnostic Trouble Codes (DTCs) has been set:P0339 - Crankshaft Position Sensor Intermittent. P0335 - Crankshaft Position Sensor Circuit. P258B - Electronic Vacuum Pump Performance. P0456 - EVAP System Small Leak. If DTC P0456 is present use the wiTECH Small Leak Verification Test (SLVT) to determine if a leak is present in the system.The customer may comment on one or more of the following:ECO light does not illuminate in the instrument cluster during Multiple Displacement Solenoid (MDS) event. 2-3 km (1.4 to 1.9 mph) difference between cruise set speed and the actual vehicle speed. ?Ready Not Ready? appearing message in the Electronic Vehicle InformationCenter (EVIC) while driving and before an Engine Stop Start (ESS) event. The engine may exhibit a crank and fail to start situation. Vehicle has a rough idle only after cold start. The radiator cooling fan is stuck on for a long time while driving. Coolant temp/check gauges light illuminated in the Instrument Panel Cluster(IPC). In addition, the following software enhancements are also available:Radiator cooling fan operation strategy. Updated electric vacuum pump calibration to reduce pump wear. Small leak detection in-use monitor performance ratio.

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