JEEP

1801621

2021-07-16 · NHTSA 10221670

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: 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 one or more of the following DTCs have been set: P1061 - Cylinder 1 Oil Supply Solenoid Valve Stuck. P1065 - Cylinder 1 Oil Supply Solenoid Valve Switch On Time Out Of Range. P1062 - Cylinder 2 Oil Supply Solenoid Valve Stuck. P1067 - Cylinder 2 Oil Supply Solenoid Valve Switch On Time Out Of Range. P1063 - Cylinder 3 Oil Supply Solenoid Valve Stuck. P1069 - Cylinder 3 Oil Supply Solenoid Valve Switch On Time Out Of Range. P1471 - Catalyst Protection (Bank 1). P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P1064 - Cylinder 4 Oil Supply Solenoid Valve Stuck. P106B - Cylinder 4 Oil Supply Solenoid Valve Switch On Time Out Of Range. P2110 - Electronic Throttle Control System Bank 1 Forced Limited RPM. P2173 - High Airflow/Vacuum Leak Detected (Slow Accumulation). P0607 - Control Module Performance. In addition, the customer may notice the following condition: Poor engine performance.

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.