diff --git a/board/main.c b/board/main.c
index dcc40922..ac0fda9b 100644
--- a/board/main.c
+++ b/board/main.c
@@ -118,6 +118,7 @@ static void tick_handler(void) {
   static uint32_t controls_allowed_countdown = 0;
   static uint8_t prev_harness_status = HARNESS_STATUS_NC;
   static uint8_t loop_counter = 0U;
+  static bool relay_malfunction_prev = false;
 
   if (TICK_TIMER->SR != 0U) {
 
@@ -130,6 +131,15 @@ static void tick_handler(void) {
     simple_watchdog_kick();
     sound_tick();
 
+    if (relay_malfunction_prev != relay_malfunction) {
+      if (relay_malfunction) {
+        fault_occurred(FAULT_RELAY_MALFUNCTION);
+      } else {
+        fault_recovered(FAULT_RELAY_MALFUNCTION);
+      }
+    }
+    relay_malfunction_prev = relay_malfunction;
+
     // re-init everything that uses harness status
     if (harness.status != prev_harness_status) {
       prev_harness_status = harness.status;