- March 26: Chrysler, Jeep and Ram Vehicles Recalled For Airbag Failures recalls | 32 days ago
- March 13: Jeep Wrangler 4xe Recall, Then a Class Action Lawsuit news | 45 days ago
- February 29: Jeep Grand Cherokee Recall: Wheels May Fall Outward recalls | 58 days ago
- February 20: Jeep Wrangler Hybrids and Jeep Grand Cherokee Hybrids Recalled recalls | 67 days ago
- January 31: Jeep and Ram eTorque Problems Debated in Court news | 87 days ago
Jeep TSB #1814422
2018 Jeep Wrangler
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- Summary
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs: P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P2C90 - Crankcase Ventilation System - Hose "A" Disconnected. P04FC - Crankcase Ventilation System 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. P061A - Level 2 Torque Performance. P0507 - Idle Speed Performance Higher Than Expected. Customers may also describe the following condition:Excessive fan noise when the A/C is on MAX output. Other enhancements included in this update: Electric vacuum pump (EVP) update. Fan noise reduction.
Click a tab for more information.