- October 25: Jeep 4xe FORM Class Action Lawsuit Moves Forward news | 9 days ago
- October 1: Jeep 4xe Fire Recall Issued Following 13 Jeep 4xe Fires recalls | 33 days ago
- September 30: Jeep Wrangler 4xe Battery Problems Argued in Court news | 34 days ago
- September 30: ZF-TRW Airbag Failure Investigation Closed investigations | 34 days ago
- September 15: Jeep Cracked Windshield Lawsuit Sees State Claims Dismissed news | 49 days ago
Jeep TSB #18-022-20 REV. A
2019 Jeep Wrangler
TSB Document:
Affected Component: EQUIPMENT
- 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:P012A - Turbocharger/Supercharger Inlet Pressure Sensor 1. P012C - Turbocharger/Supercharger Inlet Air Pressure Sensor 1 Circuit Low. P012D - Turbocharger/Supercharger Inlet Air Pressure Sensor 1 Circuit High. P0607 - ECU Internal Performance. P06EF - Engine Restart Performance. P050B - Cold Start Ignition Timing 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. P0128 - Thermostat Rationality. P0507 - Idle Speed Performance Higher Than Expected. Customers may also describe the following condition:Excessive radiator fan noise when the A/C is on MAX output. In addition, the following software enhancements are available:Electric Vacuum Pump (EVP) update. Fan noise reduction.
Click a tab for more information.