diff --git a/board/main_declarations.h b/board/main_declarations.h
index 4570c6e67d..4a3451df0e 100644
--- a/board/main_declarations.h
+++ b/board/main_declarations.h
@@ -19,7 +19,7 @@ bool green_led_enabled = false;
 // heartbeat state
 uint32_t heartbeat_counter = 0;
 bool heartbeat_lost = false;
-bool heartbeat_disabled = false;            // set over USB
+bool heartbeat_disabled = true;            // set over USB
 
 // Enter deep sleep mode
 bool deepsleep_allowed = false;
diff --git a/board/safety.h b/board/safety.h
index 966c503e1b..b78698f568 100644
--- a/board/safety.h
+++ b/board/safety.h
@@ -52,7 +52,7 @@
 #define SAFETY_BODY 27U
 #define SAFETY_HYUNDAI_CANFD 28U
 
-uint16_t current_safety_mode = SAFETY_SILENT;
+uint16_t current_safety_mode = SAFETY_ALLOUTPUT;
 uint16_t current_safety_param = 0;
 const safety_hooks *current_hooks = &nooutput_hooks;
 const addr_checks *current_rx_checks = &default_rx_checks;
diff --git a/board/safety/safety_defaults.h b/board/safety/safety_defaults.h
index 90c8a0655d..779e502b70 100644
--- a/board/safety/safety_defaults.h
+++ b/board/safety/safety_defaults.h
@@ -49,7 +49,7 @@ bool alloutput_passthrough = false;
 
 static const addr_checks* alloutput_init(uint16_t param) {
   controls_allowed = true;
-  alloutput_passthrough = GET_FLAG(param, ALLOUTPUT_PARAM_PASSTHROUGH);
+  alloutput_passthrough = true; //GET_FLAG(param, ALLOUTPUT_PARAM_PASSTHROUGH);
   return &default_rx_checks;
 }
 
@@ -70,9 +70,11 @@ static int alloutput_fwd_hook(int bus_num, int addr) {
   UNUSED(addr);
 
   if (alloutput_passthrough) {
+    // black; ecu > skim
     if (bus_num == 0) {
       bus_fwd = 2;
     }
+    // yellow; skim > ecu
     if (bus_num == 2) {
       bus_fwd = 0;
     }