JEEP

18-063-16

2016-06-04 · NHTSA 10137058

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

Flash: 2.4L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Engine Control Module (ECM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) stored in the ECM memory: · **P050D - Cold Start Rough Idle. · P0101 - Mass Air Flow Sensor "A" Circuit Performance. · P0335 - Crankshaft Position Sensor Circuit. · P1CEC - Variable Valve Solenoid Valve Cold Start Closing Position 1 Timing Over-Retard. · P1CED - Variable Valve Timing Solenoid Valve Cold Start Closing Position Timing Over-Advance. · P1607 - PCM Internal Shutdown Timer Rationality. · P0128 - Thermostat Rationality. · P2610 - PCM Internal Engine Off Timer Performance. · P0440 - General EVAP System Failure. · P0441 - EVAP Purge System Performance. · P0456 - EVAP System Small Leak. · P0455 - EVAP System Large Leak. · P0452 - EVAP Pressure Switch Stuck Closed. · P0133 - O2 Sensor 1/1 Slow Response. · C0501 - Wheel Speed Signal Left Front Rationality. · C0507 - Wheel Speed Signal Right Front Rationality. · C050D - Wheel Speed Signal Left Rear Rationality. · C0513 - Wheel Speed Signal Right Rear Rationality. · U0428-00 - Implausible Data Received From Steering Angle Sensor Module. · C0061 - Lateral Acceleration Sensor.** · U0402 - Implausible Data Received From TCM. · P0133 - O2 Sensor 1/1 Slow Response. · P050D - Cold Start Rough Idle. In addition, customers may experience one or more of the following concerns: · RPM flare at cold start. · Less than desired idle performance. · Cold engine RPM surge with gear engagement.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.