diff --git a/.importlinter b/.importlinter
index 49c6bc215f..15fc2f50a5 100644
--- a/.importlinter
+++ b/.importlinter
@@ -37,12 +37,10 @@ ignore_imports =
     openpilot.selfdrive.car.interfaces -> openpilot.common.basedir
 
     # params will need to move to new openpilot files that just call car files
-    openpilot.selfdrive.car.fw_versions -> openpilot.common.params
     openpilot.selfdrive.car.ecu_addrs -> openpilot.common.params
     openpilot.selfdrive.car.vin -> cereal.messaging
     openpilot.selfdrive.car.disable_ecu -> cereal.messaging
     openpilot.selfdrive.car.ecu_addrs -> cereal.messaging
-    openpilot.selfdrive.car.fw_versions -> cereal.messaging
 
     # these are okay
     openpilot.selfdrive.car.card -> openpilot.common.swaglog
diff --git a/selfdrive/car/fw_versions.py b/selfdrive/car/fw_versions.py
index 0aa0f4754f..78ddb3a5e9 100755
--- a/selfdrive/car/fw_versions.py
+++ b/selfdrive/car/fw_versions.py
@@ -1,21 +1,20 @@
 #!/usr/bin/env python3
 from collections import defaultdict
 from collections.abc import Callable, Iterator
-from typing import Any, Protocol, TypeVar
+from typing import Protocol, TypeVar
 
 from tqdm import tqdm
 
 import panda.python.uds as uds
-from openpilot.selfdrive.car import carlog
+from openpilot.selfdrive.car import carlog, structs
 from openpilot.selfdrive.car.can_definitions import CanRecvCallable, CanSendCallable
-from openpilot.selfdrive.car.structs import CarParams
 from openpilot.selfdrive.car.ecu_addrs import get_ecu_addrs
 from openpilot.selfdrive.car.fingerprints import FW_VERSIONS
 from openpilot.selfdrive.car.fw_query_definitions import AddrType, EcuAddrBusType, FwQueryConfig, LiveFwVersions, OfflineFwVersions
 from openpilot.selfdrive.car.interfaces import get_interface_attr
 from openpilot.selfdrive.car.isotp_parallel_query import IsoTpParallelQuery
 
-Ecu = CarParams.Ecu
+Ecu = structs.CarParams.Ecu
 ESSENTIAL_ECUS = [Ecu.engine, Ecu.eps, Ecu.abs, Ecu.fwdRadar, Ecu.fwdCamera, Ecu.vsa]
 FUZZY_EXCLUDE_ECUS = [Ecu.fwdCamera, Ecu.fwdRadar, Ecu.eps, Ecu.debug]
 
@@ -39,7 +38,7 @@ def is_brand(brand: str, filter_brand: str | None) -> bool:
   return filter_brand is None or brand == filter_brand
 
 
-def build_fw_dict(fw_versions: list[CarParams.CarFw], filter_brand: str = None) -> dict[AddrType, set[bytes]]:
+def build_fw_dict(fw_versions: list[structs.CarParams.CarFw], filter_brand: str = None) -> dict[AddrType, set[bytes]]:
   fw_versions_dict: defaultdict[AddrType, set[bytes]] = defaultdict(set)
   for fw in fw_versions:
     if is_brand(fw.brand, filter_brand) and not fw.logging:
@@ -144,7 +143,7 @@ def match_fw_to_car_exact(live_fw_versions: LiveFwVersions, match_brand: str = N
   return set(candidates.keys()) - invalid
 
 
-def match_fw_to_car(fw_versions: list[CarParams.CarFw], vin: str, allow_exact: bool = True,
+def match_fw_to_car(fw_versions: list[structs.CarParams.CarFw], vin: str, allow_exact: bool = True,
                     allow_fuzzy: bool = True, log: bool = True) -> tuple[bool, set[str]]:
   # Try exact matching first
   exact_matches: list[tuple[bool, MatchFwToCar]] = []
@@ -229,7 +228,7 @@ def get_brand_ecu_matches(ecu_rx_addrs: set[EcuAddrBusType]) -> dict[str, set[Ad
 
 def get_fw_versions_ordered(can_recv: CanRecvCallable, can_send: CanSendCallable, set_obd_multiplexing: ObdCallback, vin: str,
                             ecu_rx_addrs: set[EcuAddrBusType], timeout: float = 0.1, num_pandas: int = 1, debug: bool = False,
-                            progress: bool = False) -> list[CarParams.CarFw]:
+                            progress: bool = False) -> list[structs.CarParams.CarFw]:
   """Queries for FW versions ordering brands by likelihood, breaks when exact match is found"""
 
   all_car_fw = []
@@ -254,7 +253,7 @@ def get_fw_versions_ordered(can_recv: CanRecvCallable, can_send: CanSendCallable
 
 def get_fw_versions(can_recv: CanRecvCallable, can_send: CanSendCallable, set_obd_multiplexing: ObdCallback, query_brand: str = None,
                     extra: OfflineFwVersions = None, timeout: float = 0.1, num_pandas: int = 1, debug: bool = False,
-                    progress: bool = False) -> list[CarParams.CarFw]:
+                    progress: bool = False) -> list[structs.CarParams.CarFw]:
   versions = VERSIONS.copy()
 
   if query_brand is not None:
@@ -306,7 +305,7 @@ def get_fw_versions(can_recv: CanRecvCallable, can_send: CanSendCallable, set_ob
           if query_addrs:
             query = IsoTpParallelQuery(can_send, can_recv, r.bus, query_addrs, r.request, r.response, r.rx_offset, debug=debug)
             for (tx_addr, sub_addr), version in query.get_data(timeout).items():
-              f = CarParams.CarFw()
+              f = structs.CarParams.CarFw()
 
               f.ecu = ecu_types.get((brand, tx_addr, sub_addr), Ecu.unknown)
               f.fwVersion = version
@@ -326,69 +325,3 @@ def get_fw_versions(can_recv: CanRecvCallable, can_send: CanSendCallable, set_ob
           carlog.exception("FW query exception")
 
   return car_fw
-
-
-if __name__ == "__main__":
-  import time
-  import argparse
-  import cereal.messaging as messaging
-  from openpilot.common.params import Params
-  from openpilot.selfdrive.car.vin import get_vin
-  from openpilot.selfdrive.car.card import can_comm_callbacks, obd_callback
-
-  parser = argparse.ArgumentParser(description='Get firmware version of ECUs')
-  parser.add_argument('--scan', action='store_true')
-  parser.add_argument('--debug', action='store_true')
-  parser.add_argument('--brand', help='Only query addresses/with requests for this brand')
-  args = parser.parse_args()
-
-  logcan = messaging.sub_sock('can')
-  pandaStates_sock = messaging.sub_sock('pandaStates')
-  sendcan = messaging.pub_sock('sendcan')
-  can_callbacks = can_comm_callbacks(logcan, sendcan)
-
-  # Set up params for pandad
-  params = Params()
-  params.remove("FirmwareQueryDone")
-  params.put_bool("IsOnroad", False)
-  time.sleep(0.2)  # thread is 10 Hz
-  params.put_bool("IsOnroad", True)
-  set_obd_multiplexing = obd_callback(params)
-
-  extra: Any = None
-  if args.scan:
-    extra = {}
-    # Honda
-    for i in range(256):
-      extra[(Ecu.unknown, 0x18da00f1 + (i << 8), None)] = []
-      extra[(Ecu.unknown, 0x700 + i, None)] = []
-      extra[(Ecu.unknown, 0x750, i)] = []
-    extra = {"any": {"debug": extra}}
-
-  num_pandas = len(messaging.recv_one_retry(pandaStates_sock).pandaStates)
-
-  t = time.time()
-  print("Getting vin...")
-  set_obd_multiplexing(True)
-  vin_rx_addr, vin_rx_bus, vin = get_vin(*can_callbacks, (0, 1), debug=args.debug)
-  print(f'RX: {hex(vin_rx_addr)}, BUS: {vin_rx_bus}, VIN: {vin}')
-  print(f"Getting VIN took {time.time() - t:.3f} s")
-  print()
-
-  t = time.time()
-  fw_vers = get_fw_versions(*can_callbacks, set_obd_multiplexing, query_brand=args.brand, extra=extra, num_pandas=num_pandas, debug=args.debug, progress=True)
-  _, candidates = match_fw_to_car(fw_vers, vin)
-
-  print()
-  print("Found FW versions")
-  print("{")
-  padding = max([len(fw.brand) for fw in fw_vers] or [0])
-  for version in fw_vers:
-    subaddr = None if version.subAddress == 0 else hex(version.subAddress)
-    print(f"  Brand: {version.brand:{padding}}, bus: {version.bus}, OBD: {version.obdMultiplexing} - " +
-          f"(Ecu.{version.ecu}, {hex(version.address)}, {subaddr}): [{version.fwVersion!r}]")
-  print("}")
-
-  print()
-  print("Possible matches:", candidates)
-  print(f"Getting fw took {time.time() - t:.3f} s")
diff --git a/selfdrive/debug/car/disable_ecu.py b/selfdrive/debug/car/disable_ecu.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/selfdrive/debug/car/ecu_addrs.py b/selfdrive/debug/car/ecu_addrs.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/selfdrive/debug/car/fw_versions.py b/selfdrive/debug/car/fw_versions.py
new file mode 100644
index 0000000000..7433d9e6c9
--- /dev/null
+++ b/selfdrive/debug/car/fw_versions.py
@@ -0,0 +1,69 @@
+import time
+import argparse
+import cereal.messaging as messaging
+from openpilot.common.params import Params
+from openpilot.selfdrive.car import structs
+from openpilot.selfdrive.car.card import can_comm_callbacks, obd_callback
+from openpilot.selfdrive.car.fw_versions import get_fw_versions, match_fw_to_car
+from openpilot.selfdrive.car.vin import get_vin
+from typing import Any
+
+Ecu = structs.CarParams.Ecu
+
+if __name__ == "__main__":
+  parser = argparse.ArgumentParser(description='Get firmware version of ECUs')
+  parser.add_argument('--scan', action='store_true')
+  parser.add_argument('--debug', action='store_true')
+  parser.add_argument('--brand', help='Only query addresses/with requests for this brand')
+  args = parser.parse_args()
+
+  logcan = messaging.sub_sock('can')
+  pandaStates_sock = messaging.sub_sock('pandaStates')
+  sendcan = messaging.pub_sock('sendcan')
+  can_callbacks = can_comm_callbacks(logcan, sendcan)
+
+  # Set up params for pandad
+  params = Params()
+  params.remove("FirmwareQueryDone")
+  params.put_bool("IsOnroad", False)
+  time.sleep(0.2)  # thread is 10 Hz
+  params.put_bool("IsOnroad", True)
+  set_obd_multiplexing = obd_callback(params)
+
+  extra: Any = None
+  if args.scan:
+    extra = {}
+    # Honda
+    for i in range(256):
+      extra[(Ecu.unknown, 0x18da00f1 + (i << 8), None)] = []
+      extra[(Ecu.unknown, 0x700 + i, None)] = []
+      extra[(Ecu.unknown, 0x750, i)] = []
+    extra = {"any": {"debug": extra}}
+
+  num_pandas = len(messaging.recv_one_retry(pandaStates_sock).pandaStates)
+
+  t = time.time()
+  print("Getting vin...")
+  set_obd_multiplexing(True)
+  vin_rx_addr, vin_rx_bus, vin = get_vin(*can_callbacks, (0, 1), debug=args.debug)
+  print(f'RX: {hex(vin_rx_addr)}, BUS: {vin_rx_bus}, VIN: {vin}')
+  print(f"Getting VIN took {time.time() - t:.3f} s")
+  print()
+
+  t = time.time()
+  fw_vers = get_fw_versions(*can_callbacks, set_obd_multiplexing, query_brand=args.brand, extra=extra, num_pandas=num_pandas, debug=args.debug, progress=True)
+  _, candidates = match_fw_to_car(fw_vers, vin)
+
+  print()
+  print("Found FW versions")
+  print("{")
+  padding = max([len(fw.brand) for fw in fw_vers] or [0])
+  for version in fw_vers:
+    subaddr = None if version.subAddress == 0 else hex(version.subAddress)
+    print(f"  Brand: {version.brand:{padding}}, bus: {version.bus}, OBD: {version.obdMultiplexing} - " +
+          f"(Ecu.{version.ecu}, {hex(version.address)}, {subaddr}): [{version.fwVersion!r}]")
+  print("}")
+
+  print()
+  print("Possible matches:", candidates)
+  print(f"Getting fw took {time.time() - t:.3f} s")
diff --git a/selfdrive/debug/car/vin.py b/selfdrive/debug/car/vin.py
new file mode 100644
index 0000000000..e69de29bb2