JEEP

0901023

Manufacturer communications

Publication date: 2023-06-14
Received by NHTSA: 2023-08-21
NHTSA record numbers: 10241084

Manufacturer summary

Original wording in English

Make Up Air (MUA) Valve Leak Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set: ? P2C90 - Crankcase Ventilation System - Hose A Disconnected. This bulletin involves replacing the MUA check valve, or performing an inspection and possibly replacing the PCV valve.

NHTSA manufacturer communications ↗

Reported code forms

P2C90

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

JeepP2C90

Crankcase Ventilation System - Hose A Disconnected

NHTSA 10241084

Check vehicle applicability

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

Make	Model	Model year
Jeep	GRAND WAGONEER	2023
Jeep	WAGONEER	2023

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