WenmarOpen by Wenmar Pro

Service bulletin 9004343

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10187014
Published by NHTSA2021-02-16
Manufacturer's number9004343
Manufacturer's date2021-01-20
NHTSA componentSERVICE BRAKES, HYDRAULIC

NHTSA's summary

VALVE, HIGH PRESSURE EGR If you are replacing the high pressure EGR valve (68490212A$) due to DTC P0407 or P0408 please refer to all published service information regarding proper diagnosis before proceeding. These DTCs are for the low pressure EGR system.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes

Trouble codes named

P0407, P0408

Vehicles listed
JEEP WRANGLER2020, 2021
RAM 15002020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20245032024-09-05. Brakes
24V6530002024-09-05. ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
20211562021-03-16. Brakes
21V0370002021-02-01. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
1131232026-07-08. Service bulletin. SPRING KIT - DISC BRAKE PAD
S25050000032025-12-17. Service bulletin. Diagnostic Trouble Code (DTC) C0050-00-Brake System Hydraulic Leak Set After Recent Repair.
S25230000912025-12-17. Service bulletin. Antilock Brake (ABS) Light On. Intermittent Or Implausible Wheel Speed Sensor Signal Diagnostic Trouble Codes (DTCs)
1084632025-11-26. Service bulletin. PAD KIT - REAR DISC BRAKE, FRONT DISC BRAKE
1084642025-11-26. Service bulletin. PAD KIT - REAR DISC BRAKE, FRONT DISC BRAKE
S1805000006 REV.B2025-11-13. Service bulletin. ESC Light Illuminated. DTC C1252-92 VACUUM PUMP CONTROL CIRCUIT And Or P258B ELECTRONIC VACUUM PUMP PERFORMANCE
1074182025-10-02. Service bulletin. SWITCH - CLUTCH STARTER INTERLOCK & MASTER CYLINDER ASSEMBLY - CLUTCH
S2405000001 Rev B2025-03-19. Service bulletin. Antilock Brake System (ABS) Module Will Not Initialize After Recent Service Replacement.
1029502025-02-04. Service bulletin. MODULE - ANTI-LOCK BRAKE SYSTEM
1029482025-02-04. Service bulletin. MODULE - ANTI-LOCK BRAKE SYSTEM