diff --git a/scripts/ci/check_compliance.py b/scripts/ci/check_compliance.py
index 8bf736939a5..944cc8ce443 100755
--- a/scripts/ci/check_compliance.py
+++ b/scripts/ci/check_compliance.py
@@ -723,6 +723,61 @@ class KconfigCheck(ComplianceTest):
             # Clean up the temporary directory
             shutil.rmtree(kconfiglib_dir)
 
+    def module_kconfigs(self, regex):
+        manifest = Manifest.from_file()
+        kconfigs = ""
+
+        # Use hard coded paths for Zephyr for tests, samples and ext. module root
+        tmp_output = git("grep", "-I", "-h", "--perl-regexp", regex, "--", ":tests", ":samples",
+                         ":modules", cwd=ZEPHYR_BASE, ignore_non_zero=True)
+
+        if len(tmp_output) > 0:
+            kconfigs += tmp_output + "\n"
+
+        for project in manifest.get_projects([]):
+            if not manifest.is_active(project):
+                continue
+
+            if not project.is_cloned():
+                continue
+
+            module_path = PurePath(project.abspath)
+            module_yml = module_path.joinpath('zephyr/module.yml')
+
+            if not Path(module_yml).is_file():
+                module_yml = module_path.joinpath('zephyr/module.yaml')
+
+            if Path(module_yml).is_file():
+                dirs = []
+
+                with Path(module_yml).open('r', encoding='utf-8') as f:
+                    meta = yaml.load(f.read(), Loader=SafeLoader)
+
+                for folder_type in ['samples', 'tests']:
+                    if folder_type in meta:
+                        for path_ext in meta[folder_type]:
+                            path_full = module_path.joinpath(path_ext)
+
+                            if Path(path_full).is_dir():
+                                dirs.append(":" + path_ext)
+
+                # Add ext. module root, if one is defined
+                if 'build' in meta and 'settings' in meta['build'] and \
+                     'module_ext_root' in meta['build']['settings']:
+                    path_full = module_path.joinpath(meta['build']['settings']['module_ext_root'])
+
+                    if Path(path_full).is_dir():
+                        dirs.append(":" + meta['build']['settings']['module_ext_root'])
+
+                if len(dirs) > 0:
+                    tmp_output = git("grep", "-I", "-h", "--perl-regexp", regex, "--",
+                                     *dirs, cwd=module_path, ignore_non_zero=True)
+
+                    if len(tmp_output) > 0:
+                        kconfigs += tmp_output + "\n"
+
+        return kconfigs
+
     def get_logging_syms(self, kconf):
         # Returns a set() with the names of the Kconfig symbols generated with
         # logging template in samples/tests folders. The Kconfig symbols doesn't
@@ -743,9 +798,8 @@ class KconfigCheck(ComplianceTest):
         # Warning: Needs to work with both --perl-regexp and the 're' module.
         regex = r"^\s*(?:module\s*=\s*)([A-Z0-9_]+)\s*(?:#|$)"
 
-        # Grep samples/ and tests/ for symbol definitions
-        grep_stdout = git("grep", "-I", "-h", "--perl-regexp", regex, "--",
-                          ":samples", ":tests", cwd=ZEPHYR_BASE)
+        # Grep samples/ and tests/ for symbol definitions in all modules
+        grep_stdout = self.module_kconfigs(regex)
 
         names = re.findall(regex, grep_stdout, re.MULTILINE)
 
@@ -898,9 +952,8 @@ Found disallowed Kconfig symbol in SoC Kconfig files: {sym_name:35}
         # (?:...) is a non-capturing group.
         regex = r"^\s*(?:menu)?config\s*([A-Z0-9_]+)\s*(?:#|$)"
 
-        # Grep samples/ and tests/ for symbol definitions
-        grep_stdout = git("grep", "-I", "-h", "--perl-regexp", regex, "--",
-                          ":samples", ":tests", cwd=ZEPHYR_BASE)
+        # Grep samples/ and tests/ for symbol definitions in all modules
+        grep_stdout = self.module_kconfigs(regex)
 
         # Generate combined list of configs and choices from the main Kconfig tree.
         kconf_syms = kconf.unique_defined_syms + kconf.unique_choices