diff --git a/src/main/java/com/vmis/interfaceapp/service/RequestEnricher.java b/src/main/java/com/vmis/interfaceapp/service/RequestEnricher.java
index d902759..88aba5b 100644
--- a/src/main/java/com/vmis/interfaceapp/service/RequestEnricher.java
+++ b/src/main/java/com/vmis/interfaceapp/service/RequestEnricher.java
@@ -68,8 +68,19 @@ public class RequestEnricher {
             req.setChargerIp(sys.getChargerIp());
             req.setChargerNm(sys.getChargerNm());
 
-            // 자동차 등록원부(갑) 조회 시 INQIRE_SE_CODE는 항상 1(열람)로 고정
-            req.setInqireSeCode("1");
+            // 고정값 설정 (값이 없는 경우에만 설정)
+            if (req.getOnesInformationOpen() == null || req.getOnesInformationOpen().isEmpty()) {
+                req.setOnesInformationOpen("1");  // 개인정보공개 (소유자공개)
+            }
+            if (req.getRouteSeCode() == null || req.getRouteSeCode().isEmpty()) {
+                req.setRouteSeCode("3");  // 경로구분코드
+            }
+            if (req.getDetailExpression() == null || req.getDetailExpression().isEmpty()) {
+                req.setDetailExpression("1");  // 내역표시 (전체내역)
+            }
+            if (req.getInqireSeCode() == null || req.getInqireSeCode().isEmpty()) {
+                req.setInqireSeCode("1");  // 조회구분코드 (열람)
+            }
         }
         log.debug("[ENRICH] ledger: applied INFO_SYS_ID={}, INFO_SYS_IP={}, SIGUNGU_CODE={}, CNTC_INFO_CODE={}",
                 sys.getInfoSysId(), sys.getInfoSysIp(), sys.getSigunguCode(), cntc);