diff --git a/entry/src/main/ets/common/service/indexService.ts b/entry/src/main/ets/common/service/indexService.ts
index 0aa2410d..e2f937e3 100644
--- a/entry/src/main/ets/common/service/indexService.ts
+++ b/entry/src/main/ets/common/service/indexService.ts
@@ -433,19 +433,21 @@ let fd
 const devPath = "/dev/ttyS3"
 
 function openChuankouFn(callback) {
-  console.log('SerialOpen in indexservice, path=' + devPath)
-
-  //自动挡车不读取串口
-  if(globalThis.carInfo && globalThis.carInfo.kscx == 'C1'){
-    testNapi.SerialOpenAsync(devPath, (fd) => {
-      globalThis.fd = fd;
-      globalThis.num = 0
-      let parity = 0x4e; // 'N'
-      let ret = testNapi.SerialSetAsync(globalThis.fd, 115200, 0, 8, 1, parity, (ret) => {
-        callback()
+  getSyncData('ES_CARINFO').then(result => {
+    const carInfo = result[0] || {};
+    globalThis.carInfo.kscx = carInfo.kscx
+    console.info('srj ES_CARINFO=>',JSON.stringify(carInfo))
+    if(carInfo.kscx == 'C1'){
+      testNapi.SerialOpenAsync(devPath, (fd) => {
+        globalThis.fd = fd;
+        globalThis.num = 0
+        let parity = 0x4e; // 'N'
+        let ret = testNapi.SerialSetAsync(globalThis.fd, 115200, 0, 8, 1, parity, (ret) => {
+          callback()
+        });
       });
-    });
-  }
+    }
+  })
 }
 
 function getChuankouFnMsg() {