new support

opendbc_repo/opendbc/car/gm/fingerprints.py

@@ -212,6 +212,7 @@ FINGERPRINTS.update({
   CAR.CADILLAC_ESCALADE_ASCM: FINGERPRINTS[CAR.CADILLAC_ESCALADE],
   CAR.CADILLAC_ESCALADE_ESV_2019_ASCM: [{**fp, SASCM_ADDRESS: 8} for fp in FINGERPRINTS[CAR.CADILLAC_ESCALADE_ESV_2019]],
   CAR.CHEVROLET_SUBURBAN: FINGERPRINTS[CAR.CHEVROLET_SUBURBAN_CC],
+  CAR.CHEVROLET_SUBURBAN_ASCM: FINGERPRINTS[CAR.CHEVROLET_SUBURBAN_CC],
   CAR.GMC_YUKON_CC: FINGERPRINTS[CAR.GMC_YUKON],
   CAR.CADILLAC_XT6: FINGERPRINTS[CAR.CHEVROLET_TRAVERSE],
   CAR.CADILLAC_XT5: FINGERPRINTS[CAR.CHEVROLET_TRAVERSE],

opendbc_repo/opendbc/car/gm/interface.py

@@ -522,7 +522,7 @@ class CarInterface(CarInterfaceBase):
       ret.steerActuatorDelay = 0.2
       CarInterfaceBase.configure_torque_tune(candidate, ret.lateralTuning)
 
-    elif candidate in (CAR.CHEVROLET_SUBURBAN, CAR.CHEVROLET_SUBURBAN_CC):
+    elif candidate in (CAR.CHEVROLET_SUBURBAN, CAR.CHEVROLET_SUBURBAN_ASCM, CAR.CHEVROLET_SUBURBAN_CC):
       ret.steerActuatorDelay = 0.2
       CarInterfaceBase.configure_torque_tune(candidate, ret.lateralTuning)
 

opendbc_repo/opendbc/car/gm/tests/test_gm.py

@@ -268,6 +268,46 @@ class TestGMCarState:
 
 
 class TestGMInterface:
+  def test_suburban_obd_and_ascm_integrations_remain_separate(self):
+    fingerprint = _empty_fingerprint()
+    fingerprint[0] = FINGERPRINTS[CAR.CHEVROLET_SUBURBAN][0].copy()
+
+    assert CAR.CHEVROLET_SUBURBAN_ASCM in ASCM_INT
+    assert FINGERPRINTS[CAR.CHEVROLET_SUBURBAN_ASCM] == FINGERPRINTS[CAR.CHEVROLET_SUBURBAN]
+
+    obd_params = interfaces[CAR.CHEVROLET_SUBURBAN].get_params(
+      CAR.CHEVROLET_SUBURBAN,
+      fingerprint,
+      [],
+      alpha_long=False,
+      is_release=False,
+      docs=False,
+      starpilot_toggles=_test_starpilot_toggles(),
+    )
+    ascm_params = interfaces[CAR.CHEVROLET_SUBURBAN_ASCM].get_params(
+      CAR.CHEVROLET_SUBURBAN_ASCM,
+      fingerprint,
+      [],
+      alpha_long=True,
+      is_release=False,
+      docs=False,
+      starpilot_toggles=_test_starpilot_toggles(),
+    )
+
+    assert obd_params.networkLocation == structs.CarParams.NetworkLocation.gateway
+    assert obd_params.openpilotLongitudinalControl
+    assert not obd_params.pcmCruise
+    assert obd_params.safetyConfigs[0].safetyParam == 0
+
+    assert ascm_params.networkLocation == structs.CarParams.NetworkLocation.fwdCamera
+    assert not ascm_params.flags & GMFlags.SASCM.value
+    assert not ascm_params.alphaLongitudinalAvailable
+    assert not ascm_params.openpilotLongitudinalControl
+    assert ascm_params.pcmCruise
+    assert ascm_params.safetyConfigs[0].safetyParam == GMSafetyFlags.HW_CAM.value | GMSafetyFlags.HW_ASCM_INT.value
+    assert ascm_params.lateralTuning.torque.latAccelFactor == pytest.approx(obd_params.lateralTuning.torque.latAccelFactor)
+    assert ascm_params.lateralTuning.torque.friction == pytest.approx(obd_params.lateralTuning.torque.friction)
+
   def test_lacrosse_obd_and_ascm_integrations_remain_separate(self):
     obd_params = interfaces[CAR.BUICK_LACROSSE].get_params(
       CAR.BUICK_LACROSSE,

opendbc_repo/opendbc/car/gm/values.py

@@ -357,6 +357,10 @@ class CAR(Platforms):
     [GMCarDocs("Chevrolet Suburban Premier 2016-20")],
     CarSpecs(mass=2731, wheelbase=3.302, steerRatio=17.3, centerToFrontRatio=0.49),
   )
+  CHEVROLET_SUBURBAN_ASCM = GMPlatformConfig(
+    [GMCarDocs("Chevrolet Suburban Premier ASCM Harness 2016-20", "Adaptive Cruise Control (ACC) & LKAS")],
+    CHEVROLET_SUBURBAN.specs,
+  )
   GMC_YUKON_CC = GMPlatformConfig(
     [GMCarDocs("GMC Yukon No-ACC 2019-20")],
     CarSpecs(mass=2541, wheelbase=2.95, steerRatio=16.3, centerToFrontRatio=0.4),
@@ -593,9 +597,10 @@ CC_REGEN_PADDLE_CAR = {
 }
 CAMERA_ACC_CAR.update(CC_ONLY_CAR)
 
-# ASCM-INT paths are only enabled when SASCM (0x2FF) is detected at runtime
+# ASCM-intercept variants preserve stock ACC. SASCM (0x2FF) enables alpha-long where supported.
 ASCM_INT = {
   CAR.CHEVROLET_VOLT_ASCM,
+  CAR.CHEVROLET_SUBURBAN_ASCM,
   CAR.GMC_ACADIA_ASCM,
   CAR.CHEVROLET_MALIBU_ASCM,
   CAR.CADILLAC_ESCALADE_ASCM,

opendbc_repo/opendbc/car/hyundai/carcontroller.py

@@ -10,6 +10,7 @@ from opendbc.car.lateral import apply_driver_steer_torque_limits, apply_steer_an
 from opendbc.car.common.conversions import Conversions as CV
 from opendbc.car.hyundai import hyundaicanfd, hyundaican
 from opendbc.car.hyundai.hyundaicanfd import CanBus
+from opendbc.car.hyundai.lead_data import CanLeadDataState
 from opendbc.car.hyundai.values import HyundaiFlags, HyundaiSafetyFlags, HyundaiStarPilotFlags, Buttons, CarControllerParams, CAR, CANFD_ANGLE_LONGITUDINAL_CAR, \
                                         CANFD_RADAR_ECU_KEEPALIVE_CAR, CANFD_ALT_BUTTONS_RESUME_CAR, kia_ev6_gt_line_longitudinal_tuning, \
                                         KIA_EV6_GT_LINE_LONG_TUNING_TESTING_GROUND_ID
@@ -474,6 +475,7 @@ class CarController(CarControllerBase):
     self._ioniq_6_lane_change_ui_frames = 0
     self._ioniq_6_long_tuning = Ioniq6LongitudinalTuningState()
     self._genesis_g90_long_tuning = GenesisG90LongitudinalTuningState()
+    self._can_lead_data = CanLeadDataState()
     self._dash_lat_disengage_blink_frame = 0
     self._dash_lat_disengage_init = False
     self._dash_prev_lat_active = False
@@ -503,7 +505,9 @@ class CarController(CarControllerBase):
     return lka_icon, lfa_icon
 
   def _get_canfd_scc_lead_state(self, CC, CS, now_nanos):
-    openpilot_lead_visible = bool(getattr(CS, "openpilot_lead_visible", False) or CC.hudControl.leadVisible)
+    openpilot_lead_visible = bool(
+      getattr(CS, "openpilot_lead_visible", False) or getattr(CC.hudControl, "leadVisible", False)
+    )
     openpilot_lead_distance = float(np.clip(getattr(CS, "openpilot_lead_distance", 0.0), 0.0, 204.7))
     openpilot_lead_rel_speed = float(np.clip(getattr(CS, "openpilot_lead_rel_speed", 0.0), -16.4, 34.7))
     stock_camera_lead_fresh = now_nanos - getattr(CS, "stock_camera_lead_ts", 0) <= CANFD_CAMERA_LEAD_STALE_NS
@@ -757,6 +761,13 @@ class CarController(CarControllerBase):
     can_canfd_blended = bool(self.CP.flags & HyundaiFlags.CAN_CANFD_BLENDED)
     blended_hda2 = can_canfd_blended and bool(self.CP.flags & HyundaiFlags.CANFD_LKA_STEERING)
     longitudinal_active = bool(self.long_active_ecu and getattr(CC, "longActive", False))
+    lead_visible = bool(getattr(CS, "openpilot_lead_visible", False) or getattr(hud_control, "leadVisible", False))
+    lead_distance = float(np.clip(getattr(CS, "openpilot_lead_distance", 0.0), 0.0, 204.7))
+    lead_rel_speed = float(np.clip(getattr(CS, "openpilot_lead_rel_speed", 0.0), -170.0, 239.5))
+    if lead_visible and lead_distance <= CANFD_LEAD_MIN_DISTANCE:
+      lead_distance = CANFD_FALLBACK_LEAD_DISTANCE
+      lead_rel_speed = 0.0
+    lead_data = self._can_lead_data.update(lead_distance, lead_rel_speed, lead_visible)
 
     # HUD messages
     sys_warning, sys_state, left_lane_warning, right_lane_warning = process_hud_alert(CC.enabled, self.car_fingerprint,
@@ -836,7 +847,7 @@ class CarController(CarControllerBase):
         can_sends.extend(hyundaican.create_acc_commands(self.packer, CC.enabled, accel, jerk, int(self.frame / 2),
                                                         hud_control, set_speed_in_units, stopping,
                                                         CC.cruiseControl.override, use_fca, self.CP,
-                                                        main_cruise_enabled))
+                                                        main_cruise_enabled, lead_data))
 
     # 20 Hz LFA MFA message
     if self.frame % 5 == 0 and (self.CP.flags & HyundaiFlags.SEND_LFA.value or (self.long_active_ecu and blended_hda2)):
@@ -1022,14 +1033,17 @@ class CarController(CarControllerBase):
                                                                                  CC.leftBlinker,
                                                                                  CC.rightBlinker))
       if self.frame % 2 == 0:
+        lead_visible, lead_distance, lead_rel_speed = self._get_canfd_scc_lead_state(CC, CS, now_nanos)
         if self.CP.carFingerprint == CAR.GENESIS_GV70_ELECTRIFIED_1ST_GEN:
           scc_jerk_limits = get_hyundai_canfd_scc_jerk_limits(self.CP)
           acc_kwargs = {
             "jerk_upper": scc_jerk_limits[0],
             "jerk_lower": scc_jerk_limits[1],
+            "lead_distance": lead_distance,
+            "lead_rel_speed": lead_rel_speed,
+            "lead_visible": lead_visible,
           }
         else:
-          lead_visible, lead_distance, lead_rel_speed = self._get_canfd_scc_lead_state(CC, CS, now_nanos)
           acc_kwargs = {
             "main_mode_acc": int(CS.out.cruiseState.available),
             "direct_accel": True,

opendbc_repo/opendbc/car/hyundai/hyundaican.py

@@ -1,5 +1,6 @@
 import crcmod
 from opendbc.car.hyundai.hyundaicanfd import CanBus
+from opendbc.car.hyundai.lead_data import CanLeadData
 from opendbc.car.hyundai.values import CAR, HyundaiFlags
 
 hyundai_checksum = crcmod.mkCrcFun(0x11D, initCrc=0xFD, rev=False, xorOut=0xdf)
@@ -317,19 +318,20 @@ def create_acc_commands_can_canfd_blended_hda2(packer, enabled, accel, accel_las
 
 
 def create_acc_commands(packer, enabled, accel, upper_jerk, idx, hud_control, set_speed, stopping, long_override, use_fca, CP,
-                        main_cruise_enabled=True):
+                        main_cruise_enabled=True, lead_data: CanLeadData | None = None):
   commands = []
+  lead_data = lead_data or CanLeadData()
 
   scc11_values = {
     "MainMode_ACC": int(bool(main_cruise_enabled)),
     "TauGapSet": hud_control.leadDistanceBars,
     "VSetDis": set_speed if enabled else 0,
     "AliveCounterACC": idx % 0x10,
-    "ObjValid": 1, # close lead makes controls tighter
-    "ACC_ObjStatus": 1, # close lead makes controls tighter
+    "ObjValid": int(lead_data.lead_visible),
+    "ACC_ObjStatus": int(lead_data.lead_visible),
     "ACC_ObjLatPos": 0,
-    "ACC_ObjRelSpd": 0,
-    "ACC_ObjDist": 1, # close lead makes controls tighter
+    "ACC_ObjRelSpd": lead_data.lead_rel_speed,
+    "ACC_ObjDist": int(lead_data.lead_distance),
     }
   commands.append(packer.make_can_msg("SCC11", 0, scc11_values))
 
@@ -357,7 +359,8 @@ def create_acc_commands(packer, enabled, accel, upper_jerk, idx, hud_control, se
     "JerkUpperLimit": upper_jerk, # stock usually is 1.0 but sometimes uses higher values
     "JerkLowerLimit": 5.0, # stock usually is 0.5 but sometimes uses higher values
     "ACCMode": 2 if enabled and long_override else 1 if enabled else 4, # stock will always be 4 instead of 0 after first disengage
-    "ObjGap": 2 if hud_control.leadVisible else 0, # 5: >30, m, 4: 25-30 m, 3: 20-25 m, 2: < 20 m, 0: no lead
+    "ObjGap": lead_data.object_gap, # 5: >30 m, 4: 25-30 m, 3: 20-25 m, 2: <20 m, 0: no lead
+    "ObjDistStat": lead_data.object_rel_gap,
   }
   commands.append(packer.make_can_msg("SCC14", 0, scc14_values))
 

opendbc_repo/opendbc/car/hyundai/lead_data.py

@@ -0,0 +1,63 @@
+from dataclasses import dataclass
+
+
+@dataclass(frozen=True)
+class CanLeadData:
+  object_gap: int = 0
+  lead_distance: float = 0.0
+  lead_rel_speed: float = 0.0
+  lead_visible: bool = False
+
+  @property
+  def object_rel_gap(self) -> int:
+    return 0 if self.lead_distance == 0 else 2 if self.lead_rel_speed < -0.2 else 1
+
+
+def _hysteresis_update(current, new_value, counter, threshold):
+  if new_value == current:
+    return current, 0
+
+  counter += 1
+  return (new_value, 0) if counter >= threshold else (current, counter)
+
+
+class CanLeadDataState:
+  LEAD_HYSTERESIS_FRAMES = 50
+
+  def __init__(self):
+    self._lead_on_counter = 0
+    self._lead_off_counter = 0
+    self._gap_counter = 0
+    self._lead_visible = False
+    self._object_gap = 0
+
+  @staticmethod
+  def _get_object_gap(lead_distance: float) -> int:
+    if lead_distance == 0:
+      return 0
+    if lead_distance < 20:
+      return 2
+    if lead_distance < 25:
+      return 3
+    if lead_distance < 30:
+      return 4
+    return 5
+
+  def update(self, lead_distance: float, lead_rel_speed: float, lead_visible: bool) -> CanLeadData:
+    counter = self._lead_on_counter if lead_visible else self._lead_off_counter
+    self._lead_visible, counter = _hysteresis_update(
+      self._lead_visible, lead_visible, counter, self.LEAD_HYSTERESIS_FRAMES,
+    )
+    if lead_visible:
+      self._lead_on_counter = counter
+      self._lead_off_counter = 0
+    else:
+      self._lead_off_counter = counter
+      self._lead_on_counter = 0
+
+    object_gap = self._get_object_gap(lead_distance)
+    self._object_gap, self._gap_counter = _hysteresis_update(
+      self._object_gap, object_gap, self._gap_counter, self.LEAD_HYSTERESIS_FRAMES,
+    )
+
+    return CanLeadData(self._object_gap, lead_distance, lead_rel_speed, self._lead_visible)

opendbc_repo/opendbc/car/hyundai/tests/test_hyundai.py

@@ -27,6 +27,7 @@ from opendbc.car.hyundai.carstate import CarState, decode_canfd_camera_lead, dec
 from opendbc.car.hyundai.interface import CarInterface, KIA_EV9_ACCEL_MAX, get_communication_control_request
 from opendbc.car.hyundai import hyundaican, hyundaicanfd
 from opendbc.car.hyundai.hyundaicanfd import CanBus, hkg_can_fd_checksum
+from opendbc.car.hyundai.lead_data import CanLeadData, CanLeadDataState
 from opendbc.car.hyundai.radar_interface import MRREVO14F_RADAR_START_ADDR, MRR30_RADAR_START_ADDR, MRR35_RADAR_START_ADDR, \
                                              RADAR_START_ADDR, RadarInterface, get_radar_track_config, radar_tracks_available
 from opendbc.car.hyundai.values import CAMERA_SCC_CAR, CANFD_CAR, CAN_GEARS, CAR, CHECKSUM, DATE_FW_ECUS, DATELESS_FUZZY_CARS, \
@@ -2705,10 +2706,11 @@ class TestHyundaiFingerprint:
       actuators=SimpleNamespace(longControlState=LongCtrlState.pid),
       cruiseControl=SimpleNamespace(override=False, cancel=False, resume=False),
       leftBlinker=False, rightBlinker=False,
-      hudControl=SimpleNamespace(leadDistanceBars=3),
+      hudControl=SimpleNamespace(leadDistanceBars=3, leadVisible=True),
     )
     cs = SimpleNamespace(
       stock_lfa_msg=None, stock_lkas_msg=None,
+      openpilot_lead_visible=True, openpilot_lead_distance=37.5, openpilot_lead_rel_speed=-1.3,
       out=SimpleNamespace(steeringAngleDeg=0.0, gearShifter=structs.CarState.GearShifter.drive),
     )
 
@@ -2721,7 +2723,8 @@ class TestHyundaiFingerprint:
     parser.update([(1, scc_msgs)])
     assert parser.can_valid
     assert parser.vl["SCC_CONTROL"]["MainMode_ACC"] == 1
-    assert parser.vl["SCC_CONTROL"]["ACC_ObjDist"] == pytest.approx(1.0)
+    assert parser.vl["SCC_CONTROL"]["ACC_ObjDist"] == pytest.approx(37.5)
+    assert parser.vl["SCC_CONTROL"]["ACC_ObjRelSpd"] == pytest.approx(-1.3)
     assert parser.vl["SCC_CONTROL"]["ObjValid"] == 0
     assert parser.vl["SCC_CONTROL"]["aReqValue"] == pytest.approx(-0.1)
     assert parser.vl["SCC_CONTROL"]["aReqRaw"] == pytest.approx(-1.0)
@@ -3016,6 +3019,50 @@ class TestHyundaiFingerprint:
     assert parser.vl["SCC14"]["ComfortBandUpper"] == pytest.approx(0.0)
     assert parser.vl["SCC14"]["ComfortBandLower"] == pytest.approx(0.0)
     assert parser.vl["SCC14"]["JerkLowerLimit"] == pytest.approx(5.0)
+    assert parser.vl["SCC11"]["ObjValid"] == 0
+    assert parser.vl["SCC11"]["ACC_ObjDist"] == 0
+    assert parser.vl["SCC14"]["ObjGap"] == 0
+    assert parser.vl["SCC14"]["ObjDistStat"] == 0
+
+  def test_can_acc_commands_show_approaching_lead(self):
+    CP = CarParams.new_message()
+    CP.carFingerprint = CAR.HYUNDAI_ELANTRA_2021
+
+    packer = CANPacker(DBC[CP.carFingerprint][Bus.pt])
+    parser = CANParser(DBC[CP.carFingerprint][Bus.pt], [("SCC11", 0), ("SCC14", 0)], 0)
+    lead_data = CanLeadData(object_gap=4, lead_distance=27.5, lead_rel_speed=-1.3, lead_visible=True)
+
+    msgs = hyundaican.create_acc_commands(packer, enabled=True, accel=0.0, upper_jerk=1.0, idx=3,
+                                          hud_control=SimpleNamespace(leadDistanceBars=3), set_speed=42,
+                                          stopping=False, long_override=False, use_fca=False, CP=CP,
+                                          lead_data=lead_data)
+    parser.update([(1, msgs)])
+
+    assert parser.can_valid
+    assert parser.vl["SCC11"]["ObjValid"] == 1
+    assert parser.vl["SCC11"]["ACC_ObjStatus"] == 1
+    assert parser.vl["SCC11"]["ACC_ObjDist"] == pytest.approx(27.0)
+    assert parser.vl["SCC11"]["ACC_ObjRelSpd"] == pytest.approx(-1.3)
+    assert parser.vl["SCC14"]["ObjGap"] == 4
+    assert parser.vl["SCC14"]["ObjDistStat"] == 2
+
+  def test_can_lead_data_hysteresis_and_distance_bands(self):
+    state = CanLeadDataState()
+
+    for _ in range(state.LEAD_HYSTERESIS_FRAMES - 1):
+      lead_data = state.update(18.0, -0.5, True)
+    assert not lead_data.lead_visible
+    assert lead_data.object_gap == 0
+
+    lead_data = state.update(18.0, -0.5, True)
+    assert lead_data.lead_visible
+    assert lead_data.object_gap == 2
+    assert lead_data.object_rel_gap == 2
+
+    for _ in range(state.LEAD_HYSTERESIS_FRAMES):
+      lead_data = state.update(32.0, 0.5, True)
+    assert lead_data.object_gap == 5
+    assert lead_data.object_rel_gap == 1
 
   def test_can_acc_commands_follow_sonata_main_cruise_state(self):
     CP = CarParams.new_message()

opendbc_repo/opendbc/car/tests/routes.py

@@ -35,6 +35,7 @@ non_tested_cars = [
   GM.CHEVROLET_MALIBU_ASCM,
   GM.CHEVROLET_MALIBU_SDGM,
   GM.CHEVROLET_SUBURBAN,
+  GM.CHEVROLET_SUBURBAN_ASCM,
   GM.CHEVROLET_TRAX,
   GM.CHEVROLET_VOLT_ASCM,
   GM.CHEVROLET_VOLT_CAMERA,

opendbc_repo/opendbc/car/torque_data/substitute.toml

@@ -90,6 +90,7 @@ legend = ["LAT_ACCEL_FACTOR", "MAX_LAT_ACCEL_MEASURED", "FRICTION"]
 "CHEVROLET_MALIBU" = "CHEVROLET_VOLT"
 "CHEVROLET_MALIBU_ASCM" = "CHEVROLET_VOLT"
 "CHEVROLET_MALIBU_SDGM" = "CHEVROLET_VOLT"
+"CHEVROLET_SUBURBAN_ASCM" = "CHEVROLET_SUBURBAN"
 "HOLDEN_ASTRA" = "CHEVROLET_VOLT"
 "CHEVROLET_VOLT_CC" = "CHEVROLET_VOLT"
 "CHEVROLET_VOLT_CAMERA" = "CHEVROLET_VOLT"

opendbc_repo/opendbc/dbc/hyundai_kia_generic.dbc

@@ -1480,6 +1480,7 @@ BO_ 905 SCC14: 8 SCC
  SG_ JerkLowerLimit : 19|7@1+ (0.1,0) [0|12.7] "m/s^3" ESC
  SG_ ACCMode : 32|3@1+ (1,0) [0|7] "" CLU,HUD,LDWS_LKAS,ESC
  SG_ ObjGap : 56|8@1+ (1,0) [0|255] "" CLU,HUD,ESC
+ SG_ ObjDistStat : 42|2@1+ (1,0) [0|3] "" XXX
 
 BO_ 1157 LFAHDA_MFC: 4 XXX
  SG_ HDA_USM : 0|2@1+ (1,0) [0|3] "" XXX
@@ -1671,6 +1672,7 @@ VAL_ 871 CF_Lvr_IsgState 0 "enabled" 1 "activated" 2 "unknown" 3 "disabled";
 VAL_ 871 CF_Lvr_Gear 12 "T" 5 "D" 8 "S" 6 "N" 7 "R" 0 "P";
 VAL_ 882 Elect_Gear_Shifter 4 "S" 5 "D" 8 "S" 6 "N" 7 "R" 0 "P";
 VAL_ 905 ACCMode 0 "off" 1 "enabled" 2 "driver_override" 3 "off_maybe_fault" 4 "cancelled";
+VAL_ 905 ObjDistStat 0 "no_object" 1 "receding" 2 "approaching";
 VAL_ 909 CF_VSM_Warn 2 "FCW" 3 "AEB";
 VAL_ 916 ACCEnable 0 "SCC ready" 1 "SCC temp fault" 2 "SCC permanent fault" 3 "SCC permanent fault, communication issue";
 VAL_ 1056 SCCInfoDisplay 0 "No Message" 2 "Cruise Control" 3 "Lost Lead" 4 "Standstill";