diff --git a/changelogs/fragments/valdate-modules-ps-arg-util.yaml b/changelogs/fragments/valdate-modules-ps-arg-util.yaml
new file mode 100644
index 00000000000..bbb534077e9
--- /dev/null
+++ b/changelogs/fragments/valdate-modules-ps-arg-util.yaml
@@ -0,0 +1,2 @@
+bugfixes:
+- ansible-test validate-modules - Fix arg spec collector for PowerShell to find utils in both a collection and base.
diff --git a/lib/ansible/executor/powershell/module_manifest.py b/lib/ansible/executor/powershell/module_manifest.py
index aa746d4755b..ce705db560e 100644
--- a/lib/ansible/executor/powershell/module_manifest.py
+++ b/lib/ansible/executor/powershell/module_manifest.py
@@ -29,6 +29,7 @@ from ansible.plugins.loader import ps_module_utils_loader
 class PSModuleDepFinder(object):
 
     def __init__(self):
+        # This is also used by validate-modules to get a module's required utils in base and a collection.
         self.ps_modules = dict()
         self.exec_scripts = dict()
 
diff --git a/test/lib/ansible_test/_data/sanity/validate-modules/validate_modules/module_args.py b/test/lib/ansible_test/_data/sanity/validate-modules/validate_modules/module_args.py
index ef1f83778ed..953b40091db 100644
--- a/test/lib/ansible_test/_data/sanity/validate-modules/validate_modules/module_args.py
+++ b/test/lib/ansible_test/_data/sanity/validate-modules/validate_modules/module_args.py
@@ -26,8 +26,10 @@ import sys
 
 from contextlib import contextmanager
 
+from ansible.executor.powershell.module_manifest import PSModuleDepFinder
 from ansible.module_utils.basic import FILE_COMMON_ARGUMENTS
 from ansible.module_utils.six import reraise
+from ansible.module_utils._text import to_bytes, to_text
 
 from .utils import CaptureStd, find_executable, get_module_name_from_filename
 
@@ -94,8 +96,22 @@ def get_ps_argument_spec(filename):
     if not pwsh:
         raise FileNotFoundError('Required program for PowerShell arg spec inspection "pwsh" not found.')
 
+    module_path = os.path.join(os.getcwd(), filename)
+    b_module_path = to_bytes(module_path, errors='surrogate_or_strict')
+    with open(b_module_path, mode='rb') as module_fd:
+        b_module_data = module_fd.read()
+
+    ps_dep_finder = PSModuleDepFinder()
+    ps_dep_finder.scan_module(b_module_data)
+
+    util_manifest = json.dumps({
+        'module_path': to_text(module_path, errors='surrogiate_or_strict'),
+        'ps_utils': dict([(name, info['path']) for name, info in ps_dep_finder.ps_modules.items()])
+    })
+
     script_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'ps_argspec.ps1')
-    proc = subprocess.Popen([script_path, filename], stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=False)
+    proc = subprocess.Popen([script_path, util_manifest], stdout=subprocess.PIPE, stderr=subprocess.PIPE,
+                            shell=False)
     stdout, stderr = proc.communicate()
 
     if proc.returncode != 0:
diff --git a/test/lib/ansible_test/_data/sanity/validate-modules/validate_modules/ps_argspec.ps1 b/test/lib/ansible_test/_data/sanity/validate-modules/validate_modules/ps_argspec.ps1
index 35b918c569f..4293d2d8544 100755
--- a/test/lib/ansible_test/_data/sanity/validate-modules/validate_modules/ps_argspec.ps1
+++ b/test/lib/ansible_test/_data/sanity/validate-modules/validate_modules/ps_argspec.ps1
@@ -5,11 +5,12 @@ Set-StrictMode -Version 2.0
 $ErrorActionPreference = "Stop"
 $WarningPreference = "Stop"
 
-$module_path = $args[0]
-if (-not $module_path) {
+$manifest = ConvertFrom-Json -InputObject $args[0] -AsHashtable
+if (-not $manifest.Contains('module_path') -or -not $manifest.module_path) {
     Write-Error -Message "No module specified."
     exit 1
 }
+$module_path = $manifest.module_path
 
 # Check if the path is relative and get the full path to the module
 if (-not ([System.IO.Path]::IsPathRooted($module_path))) {
@@ -51,33 +52,26 @@ $module_code = Get-Content -LiteralPath $module_path -Raw
 $powershell = [PowerShell]::Create()
 $powershell.Runspace.SessionStateProxy.SetVariable("ErrorActionPreference", "Stop")
 
-# Load the PowerShell module utils as the module may be using them to refer to shared module options
-# FUTURE: Lookup utils in the role or collection's module_utils dir based on #AnsibleRequires
-$script_requirements = [ScriptBlock]::Create($module_code).Ast.ScriptRequirements
-$required_modules = @()
-if ($null -ne $script_requirements) {
-    $required_modules = $script_requirements.RequiredModules
-}
-foreach ($required_module in $required_modules) {
-    if (-not $required_module.Name.StartsWith('Ansible.ModuleUtils.')) {
-        continue
+# Load the PowerShell module utils as the module may be using them to refer to shared module options. Currently we
+# can only load the PowerShell utils due to cross platform compatiblity issues.
+if ($manifest.Contains('ps_utils')) {
+    foreach ($util_info in $manifest.ps_utils.GetEnumerator()) {
+        $util_name = $util_info.Key
+        $util_path = $util_info.Value
+
+        if (-not (Test-Path -LiteralPath $util_path -PathType Leaf)) {
+            # Failed to find the util path, just silently ignore for now and hope for the best.
+            continue
+        }
+
+        $util_sb = [ScriptBlock]::Create((Get-Content -LiteralPath $util_path -Raw))
+        $powershell.AddCommand('New-Module').AddParameters(@{
+            Name = $util_name
+            ScriptBlock = $util_sb
+        }) > $null
+        $powershell.AddCommand('Import-Module').AddParameter('WarningAction', 'SilentlyContinue') > $null
+        $powershell.AddCommand('Out-Null').AddStatement() > $null
     }
-
-    $module_util_path = [System.IO.Path]::GetFullPath([System.IO.Path]::Combine($module_path, '..', '..', '..',
-        'module_utils', 'powershell', "$($required_module.Name).psm1"))
-    if (-not (Test-Path -LiteralPath $module_util_path -PathType Leaf)) {
-        # Failed to find path, just silently ignore for now and hope for the best
-        continue
-    }
-
-    $module_util_sb = [ScriptBlock]::Create((Get-Content -LiteralPath $module_util_path -Raw))
-    $powershell.AddCommand('New-Module').AddParameters(@{
-        Name = $required_module.Name
-        ScriptBlock = $module_util_sb
-    }) > $null
-    $powershell.AddCommand('Import-Module').AddParameter('WarningAction', 'SilentlyContinue') > $null
-    $powershell.AddCommand('Out-Null').AddStatement() > $null
-
 }
 
 $powershell.AddScript($module_code) > $null