TruckCodex

393.43(e) — Brake - relay emergency valve

FMCSA violation code under Vehicle Maintenance. 337 events recorded in roadside inspections. Severity weight: 7.

Severity Weight
7
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
337
Code
393.43(e)
Code System
FMCSR
BASIC Category
Vehicle Maintenance
OOS Eligible
No
Severity Weight
7
Violation Group
—
Total Events
337
Carriers Cited
250

Violation Description

Relay or emergency valve on CMV is defective or malfunctioning.

About This Violation Code

Code 393.43(e) falls under the Vehicle Maintenance BASIC category in FMCSA's Safety Measurement System (SMS). It carries a severity weight of 7 (scale 1-10, higher = more severe).

When this violation is cited during a roadside inspection, it contributes to the carrier's Vehicle Maintenance BASIC score. Carriers with high BASIC percentiles may be prioritized for FMCSA interventions including warning letters, investigations, or compliance reviews.

Regulatory Reference

Federal Motor Carrier Safety Regulations

This violation references 49 CFR 393.43 in the Federal Motor Carrier Safety Regulations.

View on eCFR.gov →FMCSA Violations Search →
Events (all time)
337
OOS Events
0
OOS Rate
0.0%
Top State (180d)
—

Top Carriers Cited

Ranked by frequency • 250 carriers total • Page 1 of 10

Top Carriers with 393.43(e) Violations

Showing 25 of 250

fmcsa-violations
Top Carriers with 393.43(e) Violations
#CarrierUSDOT# Violations
#1JOSE DE JESUS GUTIERREZ IZAGUIRRE9230535
#2TRANSPORTES TERRESTRES VALDEZ SA DE CV24730665
#3CASA TRUCKING LLC6037255
#4DOMINGO TORRES PENUELAS25665844
#5JORGE ARMANDO PINEDA CERVANTES23392784
#6RUBEN CARLOS TREVINO SANCHEZ16496894
#7VRP TRANSPORTES DE MEXICO S DE RL DE CV6620584
#8SAN LUIS INTERNATIONAL FREIGHT SERVICES LLC4632524
#9JUANA MONTOYA RUBIO30448304
#10TPO TRANSPORTES SA DE CV30271353
#11LAZARO TERAN QUIROZ20682333
#12CHRISTIAN ANGEL PEREZ DUENAS24605773
#13CARLOS IGNACIO LOPEZ RODRIGUEZ35716363
#14JOSE JUAN ARMENTA SOTO20070783
#15TRACTOREMOLQUES AMSA SA DE CV12033733
#16BELTRAN BROTHERS LLC11220393
#17SERVICIO INTERNACIONAL DE ENLACE TERRESTRE SA DE CV8181753
#18TRANSPORTADORA NORTE DE CHIHUAHUA S A DE C V7111253
#19MERCANOR SOLUTIONS SA DE CV41191493
#20TRANSPORTES CRUZADOS SA DE CV16946112
#21JESUS PEDRO PEREZ CARRILLO11598512
#22OPERADORA DE TRANSPORTE INTERNACIONAL SA DE CV6834282
#23JUAN FRANCISCO RUIZ VASQUEZ29231912
#24AUTOTRANSPORTES ROMEDU SA DE CV11482592
#25ALFONSO SANCHEZ OCHOA18398132

Recent Inspections

Latest inspections where 393.43(e) was cited • 337 total events • Page 1 of 14

Recent Inspections with 393.43(e)

Showing 25 of 337

fmcsa-inspections
Recent Inspections with 393.43(e)
DateReport #StateLevelOOS
Oct 12, 202482897573USLevel 1No
Oct 8, 202482862706OHLevel 1No
Oct 8, 202482907371USLevel 1No
Oct 8, 202482877054USLevel 1No
Oct 7, 202482855983USLevel 1No
Oct 7, 202482897879USLevel 1No
Oct 7, 202482897209MNLevel 1No
Oct 7, 202482855982USLevel 1No
Oct 7, 202482876558USLevel 1No
Oct 5, 202482840703USLevel 1No
Oct 4, 202482865211USLevel 1No
Oct 4, 202482890767OHLevel 1No
Oct 4, 202482845271USLevel 1No
Oct 4, 202482884532MNLevel 1No
Oct 3, 202482830443USLevel 1No
Oct 3, 202482907454AKLevel 1No
Oct 3, 202482833537USLevel 1No
Oct 2, 202482819720USLevel 1No
Oct 2, 202482840717USLevel 1No
Oct 1, 202482802455OHLevel 1No
Oct 1, 202482826877MILevel 1No
Sep 30, 202482800873WALevel 1No
Sep 30, 202482812427WALevel 2No
Sep 30, 202482840730USLevel 2No
Sep 28, 202482786781USLevel 1No

Data sources & freshness

FMCSA Vehicle Inspections and Violations
Unknown freshness
Federal Motor Carrier Safety Regulations (49 CFR)
Unknown freshness

Related records

CategoryAll Vehicle Maintenance Violations
Browse all violation codes in the Vehicle Maintenance BASIC
IndexAll Violation Codes
FMCSR violation codes by BASIC category
ReferenceFMCSA Roadside Inspections
Inspection levels and procedures
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