JEEP

18-034-19 REV. A

Manufacturer communications

Publication date: 2019-12-04
Received by NHTSA: 2020-01-21
NHTSA record numbers: 10170374

Manufacturer summary

Original wording in English

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 the following DTCs:P061A - Level 2 Torque Performance. P0507 - Idle Speed Performance Higher Than Expected. P0456 - EVAP System Small Leak. 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.

NHTSA manufacturer communications ↗

Reported code forms

P0456 P0507 P061A

Manufacturer wording

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

JeepP0456

EVAP System Small Leak

NHTSA 10119630 · NHTSA 10121701 · NHTSA 10121721

JeepP0507

Idle Speed Performance Higher Than Expected

NHTSA 10166581 · NHTSA 10170374 · NHTSA 10173382

JeepP061A

Level 2 Torque Performance

NHTSA 10170374 · NHTSA 10173382 · NHTSA 10178693

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	WRANGLER	2018

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