diff --git a/test/pid_zone_unittest.cpp b/test/pid_zone_unittest.cpp
index 8e74367..4eb3487 100644
--- a/test/pid_zone_unittest.cpp
+++ b/test/pid_zone_unittest.cpp
@@ -26,6 +26,7 @@
 using ::testing::StrEq;
 
 static std::string modeInterface = "xyz.openbmc_project.Control.Mode";
+static std::string enableInterface = "xyz.openbmc_project.Object.Enable";
 
 namespace
 {
@@ -34,10 +35,12 @@
 {
     // Build a PID Zone.
 
-    sdbusplus::SdBusMock sdbus_mock_passive, sdbus_mock_host, sdbus_mock_mode;
+    sdbusplus::SdBusMock sdbus_mock_passive, sdbus_mock_host, sdbus_mock_mode,
+        sdbus_mock_enable;
     auto bus_mock_passive = sdbusplus::get_mocked_new(&sdbus_mock_passive);
     auto bus_mock_host = sdbusplus::get_mocked_new(&sdbus_mock_host);
     auto bus_mock_mode = sdbusplus::get_mocked_new(&sdbus_mock_mode);
+    auto bus_mock_enable = sdbusplus::get_mocked_new(&sdbus_mock_enable);
 
     EXPECT_CALL(sdbus_mock_host,
                 sd_bus_add_object_manager(
@@ -58,6 +61,15 @@
     SetupDbusObject(&sdbus_mock_mode, defer, objPath, modeInterface, properties,
                     &d);
 
+    std::string sensorname = "temp1";
+    std::string pidsensorpath = "/xyz/openbmc_project/settings/fanctrl/zone1/" +
+                                sensorname;
+
+    double de;
+    std::vector<std::string> propertiesenable;
+    SetupDbusObject(&sdbus_mock_enable, defer, pidsensorpath.c_str(),
+                    enableInterface, propertiesenable, &de);
+
     DbusPidZone p(zone, minThermalOutput, failSafePercent, cycleTime, m,
                   bus_mock_mode, objPath, defer);
     // Success.
@@ -70,7 +82,7 @@
   protected:
     PidZoneTest() :
         property_index(), properties(), sdbus_mock_passive(), sdbus_mock_host(),
-        sdbus_mock_mode()
+        sdbus_mock_mode(), sdbus_mock_enable()
     {
         EXPECT_CALL(sdbus_mock_host,
                     sd_bus_add_object_manager(
@@ -80,6 +92,7 @@
         auto bus_mock_passive = sdbusplus::get_mocked_new(&sdbus_mock_passive);
         auto bus_mock_host = sdbusplus::get_mocked_new(&sdbus_mock_host);
         auto bus_mock_mode = sdbusplus::get_mocked_new(&sdbus_mock_mode);
+        auto bus_mock_enable = sdbusplus::get_mocked_new(&sdbus_mock_enable);
 
         // Compiler weirdly not happy about just instantiating mgr(...);
         SensorManager m(bus_mock_passive, bus_mock_host);
@@ -88,6 +101,10 @@
         SetupDbusObject(&sdbus_mock_mode, defer, objPath, modeInterface,
                         properties, &property_index);
 
+        SetupDbusObject(&sdbus_mock_enable, defer, pidsensorpath.c_str(),
+                        enableInterface, propertiesenable,
+                        &propertyenable_index);
+
         zone = std::make_unique<DbusPidZone>(zoneId, minThermalOutput,
                                              failSafePercent, cycleTime, mgr,
                                              bus_mock_mode, objPath, defer);
@@ -96,10 +113,13 @@
     // unused
     double property_index;
     std::vector<std::string> properties;
+    double propertyenable_index;
+    std::vector<std::string> propertiesenable;
 
     sdbusplus::SdBusMock sdbus_mock_passive;
     sdbusplus::SdBusMock sdbus_mock_host;
     sdbusplus::SdBusMock sdbus_mock_mode;
+    sdbusplus::SdBusMock sdbus_mock_enable;
     int64_t zoneId = 1;
     double minThermalOutput = 1000.0;
     double failSafePercent = 0.75;
@@ -108,6 +128,10 @@
     SensorManager mgr;
     conf::CycleTime cycleTime;
 
+    std::string sensorname = "temp1";
+    std::string pidsensorpath = "/xyz/openbmc_project/settings/fanctrl/zone1/" +
+                                sensorname;
+
     std::unique_ptr<DbusPidZone> zone;
 };
 
@@ -128,6 +152,28 @@
     EXPECT_TRUE(zone->getManualMode());
 }
 
+TEST_F(PidZoneTest, AddPidControlProcessGetAndSetEnableTest_BehavesAsExpected)
+{
+    // Verifies that the zone starts in enable mode.  Verifies that one can set
+    // enable the mode.
+    auto bus_mock_enable = sdbusplus::get_mocked_new(&sdbus_mock_enable);
+
+    EXPECT_CALL(sdbus_mock_mode, sd_bus_emit_properties_changed_strv(
+                                     IsNull(), StrEq(pidsensorpath.c_str()),
+                                     StrEq(enableInterface), NotNull()))
+        .Times(::testing::AnyNumber())
+        .WillOnce(Invoke(
+            [&]([[maybe_unused]] sd_bus* bus, [[maybe_unused]] const char* path,
+                [[maybe_unused]] const char* interface, const char** names) {
+        EXPECT_STREQ("Enable", names[0]);
+        return 0;
+        }));
+
+    zone->addPidControlProcess(sensorname, bus_mock_enable,
+                               pidsensorpath.c_str(), defer);
+    EXPECT_TRUE(zone->isPidProcessEnabled(sensorname));
+}
+
 TEST_F(PidZoneTest, SetManualMode_RedundantWritesEnabledOnceAfterManualMode)
 {
     // Tests adding a fan PID controller to the zone, and verifies it's
@@ -166,12 +212,31 @@
     // Tests addSetPoint, clearSetPoints, determineMaxSetPointRequest
     // and getMinThermalSetPoint.
 
+    // Need to add pid control process for the zone that can enable
+    // the process and add the set point.
+    auto bus_mock_enable = sdbusplus::get_mocked_new(&sdbus_mock_enable);
+
+    EXPECT_CALL(sdbus_mock_mode, sd_bus_emit_properties_changed_strv(
+                                     IsNull(), StrEq(pidsensorpath.c_str()),
+                                     StrEq(enableInterface), NotNull()))
+        .Times(::testing::AnyNumber())
+        .WillOnce(Invoke(
+            [&]([[maybe_unused]] sd_bus* bus, [[maybe_unused]] const char* path,
+                [[maybe_unused]] const char* interface, const char** names) {
+        EXPECT_STREQ("Enable", names[0]);
+        return 0;
+        }));
+
+    zone->addPidControlProcess(sensorname, bus_mock_enable,
+                               pidsensorpath.c_str(), defer);
+
     // At least one value must be above the minimum thermal setpoint used in
     // the constructor otherwise it'll choose that value
     std::vector<double> values = {100, 200, 300, 400, 500, 5000};
+
     for (auto v : values)
     {
-        zone->addSetPoint(v, "");
+        zone->addSetPoint(v, sensorname);
     }
 
     // This will pull the maximum RPM setpoint request.
@@ -191,10 +256,29 @@
     // Tests adding several RPM setpoints, however, they're all lower than the
     // configured minimal thermal setpoint RPM value.
 
+    // Need to add pid control process for the zone that can enable
+    // the process and add the set point.
+    auto bus_mock_enable = sdbusplus::get_mocked_new(&sdbus_mock_enable);
+
+    EXPECT_CALL(sdbus_mock_mode, sd_bus_emit_properties_changed_strv(
+                                     IsNull(), StrEq(pidsensorpath.c_str()),
+                                     StrEq(enableInterface), NotNull()))
+        .Times(::testing::AnyNumber())
+        .WillOnce(Invoke(
+            [&]([[maybe_unused]] sd_bus* bus, [[maybe_unused]] const char* path,
+                [[maybe_unused]] const char* interface, const char** names) {
+        EXPECT_STREQ("Enable", names[0]);
+        return 0;
+        }));
+
+    zone->addPidControlProcess(sensorname, bus_mock_enable,
+                               pidsensorpath.c_str(), defer);
+
     std::vector<double> values = {100, 200, 300, 400, 500};
+
     for (auto v : values)
     {
-        zone->addSetPoint(v, "");
+        zone->addSetPoint(v, sensorname);
     }
 
     // This will pull the maximum RPM setpoint request.