MG ZS EV: Cable-lock status not reflected, does not change even though successful locking is reported

[jkrenzer]

Hi!

With our MG ZS saic/${user}/vehicles/${vin}/drivetrain/chargingCableLock is always False even when the cable-lock is clearly audible engaged. Toggeling the switch yields the message in the logs, that the cable will be locked/unlocked and Success is reported in saic/${user}/vehicles/${vin}/drivetrain/chargingCableLock/result. Using saic/${user}/vehicles/${vin}/drivetrain/chargingCableLock/set yields the same.

As of now, we were not able to clearly determine if the car reacts to the command and is just not reporting the locking status or if it does not do anything at all. Our ZS is quite slow to react on manual locking/unlocking requests even using the touch interface and likes to lock and unlock on it's own. We'll keep trying to make certain.

So it might be, the ZS does not support reporting the status or it is ignoring the topic completely. Maybe some upstream research in the API is needed to clarify this.

Cheers,

Jörn

[nanomad]

Hi Jon, can you check what the mg app shows when it "scans" the car with the cable plugged in and locked? Otherwise I'll need some api dumps (they can be enabled and pushed on mqtt) with different cable states Il Mar 22 Ott 2024, 13:35 Jörn Krenzer ***@***.***> ha scritto:

…

Hi! With our MG ZS saic/${user}/vehicles/${vin}/drivetrain/chargingCableLock is always False even when the cable-lock is clearly audible engaged. Toggeling the switch yields the message in the logs, that the cable will be locked/unlocked and Success is reported in saic/${user}/vehicles/${vin}/drivetrain/chargingCableLock/result. Using saic/${user}/vehicles/${vin}/drivetrain/chargingCableLock/set yields the same. As of now, we were not able to clearly determine if the car reacts to the command and is just not reporting the locking status or if it does not do anything at all. Our ZS is quite slow to react on manual locking/unlocking requests even using the touch interface and likes to lock and unlock on it's own. We'll keep trying to make certain. So it might be, the ZS does not support reporting the status or it is ignoring the topic completely. Maybe some upstream research in the API is needed to clarify this. Cheers, Jörn — Reply to this email directly, view it on GitHub <#271>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAIT3RQDNWL2OV5M73KYNMLZ4Y2BPAVCNFSM6AAAAABQMI5FSGVHI2DSMVQWIX3LMV43ASLTON2WKOZSGYYDKMJYGM4DCMA> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[jkrenzer]

Otherwise I'll need some api dumps (they can be enabled and pushed on mqtt) with different cable states

I would prefer using the mqtt-gateway if possible to colleect the dump, as the vehicle and our own app using the mqtt is currently in use. Do you mean MQTT_LOG_LEVEL=DEBUG or something else? A search did not turn up anything akin to "api dump" in the repo.

[nanomad]

You can set
PUBLISH_RAW_API_DATA_ENABLED=True

This will publish API Request/Response to MQTT

[jkrenzer]

PUBLISH_RAW_API_DATA_ENABLED=True

BTW: Is there an entry in the documentation for this? Very helpful feature, thanks!

For people using the homeassistant addon and finding this issue while searching: You can add

PUBLISH_RAW_API_DATA_ENABLED: true

in the yaml config view of the addon.

---

So, here some of the api-info I could collect.

Request when pressing lock:

{
  "path": "/vehicle/charging/control",
  "query": {},
  "body": {
    "chrgCtrlReq": 0,
    "tboxEleccLckCtrlReq": 1,
    "tboxV2XReq": 0,
    "vin": "REDACTED"
  },
  "headers": {
    "host": "gateway-mg-eu.soimt.com",
    "event-id": "1342824349",
    "content-length": "136",
    "content-type": "application/json"
  }
}

Followed by mutliple errors:

{
  "path": "/vehicle/charging/control",
  "query": {},
  "body": {
    "code": 4,
    "message": "The remote control instruction failed, please try again later."
  },
  "headers": {
    "date": "Thu, 05 Dec 2024 19:45:27 GMT",
    "content-type": "application/json",
    "content-length": "85",
    "connection": "keep-alive",
    "app-content-encrypted": "1",
    "original-content-type": "application/json",
    "app-send-date": "1733427927094",
    "app-verification-string": "REDACTED"
  }
}

And then suddenly:

{
  "path": "/vehicle/charging/control",
  "query": {},
  "body": {
    "code": 0,
    "data": {
      "chrgCtrlDspCmd": 1,
      "rvcReqSts": 3,
      "chrgCtrlResp": 0
    },
    "message": "success"
  },
  "headers": {
    "date": "Thu, 05 Dec 2024 19:45:39 GMT",
    "content-type": "application/json",
    "content-length": "89",
    "connection": "keep-alive",
    "app-content-encrypted": "1",
    "original-content-type": "application/json",
    "app-send-date": "1733427939353",
    "app-verification-string": "REDACTED"
  }
}

But the lock status stays false:

saic/REDACTED/vehicles/REDACTED/drivetrain/chargingCableLock = False
saic/REDACTED/vehicles/REDACTED/drivetrain/chargingCableLockresult = Success
saic/REDACTED/vehicles/REDACTED/drivetrain/chargingCableLock/set = True

[nanomad]

Thanks, can you repeat the test this time checking the following topics?

saic/_internal/api/vehicle/charging/mgmtData/response
saic/_internal/api/vehicle/control/response
saic/_internal/api/vehicle/status/response

(Just pick the last value after it settles, the in between errors are supposed to be there since the API requires a few retries by design)

[jkrenzer]

Thanks, can you repeat the test this time checking the following topics?

saic/_internal/api/vehicle/charging/mgmtData/response saic/_internal/api/vehicle/control/response saic/_internal/api/vehicle/status/response

(Just pick the last value after it settles, the in between errors are supposed to be there since the API requires a few retries by design)

Yes, I will have a look next time the vehicle is loading.

[jkrenzer]

So, I tried my best to capture all consecutive messages coming when locking is enabled. Hope I caught everything. Some topics have multiple messages, the order of the json objects in this case is descending in time.

saic/_internal/api/vehicle/charging/mgmtData/response:

{
  "path": "/vehicle/charging/mgmtData",
  "query": {
    "vin": [
      "REDACTED"
    ]
  },
  "body": {
    "code": 0,
    "data": {
      "rvsChargeStatus": {
        "mileageSinceLastCharge": 0,
        "totalBatteryCapacity": 725,
        "workingVoltage": 1559,
        "chargingDuration": 7735,
        "chargingType": 6,
        "fuelRangeElec": 2730,
        "realtimePower": 592,
        "workingCurrent": 19498,
        "chargingGunState": 1,
        "mileageOfDay": 560,
        "startTime": 1733989813,
        "endTime": 1733954768,
        "powerUsageOfDay": 1119,
        "powerUsageSinceLastCharge": 0,
        "mileage": 117830
      },
      "chrgMgmtData": {
        "clstrElecRngToEPT": 273,
        "bmsChrgSts": 1,
        "bmsPackSOCDsp": 817,
        "bmsPTCHeatReqDspCmd": 2,
        "bmsPackCrnt": 19498,
        "bmsChrgCtrlDspCmd": 1,
        "bmsReserStMintueDspCmd": 0,
        "bmsOnBdChrgTrgtSOCDspCmd": 6,
        "bmsEstdElecRng": 304,
        "bmsReserCtrlDspCmd": 2,
        "bmsPTCHeatSpRsn": 0,
        "bmsChrgOtptCrntReq": 155,
        "bmsReserStHourDspCmd": 22,
        "bmsPackVol": 1559,
        "bmsReserSpHourDspCmd": 6,
        "bmsAdpPubChrgSttnDspCmd": 2,
        "chrgngRmnngTimeV": 0,
        "bmsReserSpMintueDspCmd": 0,
        "bmsAltngChrgCrntDspCmd": 0,
        "bmsChrgSpRsn": 0,
        "chrgngRmnngTime": 39
      }
    },
    "message": "success"
  },
  "headers": {
    "date": "Thu, 12 Dec 2024 09:59:09 GMT",
    "content-type": "application/json",
    "content-length": "891",
    "connection": "keep-alive",
    "app-content-encrypted": "1",
    "original-content-type": "application/json",
    "app-send-date": "1733997549510",
    "app-verification-string": "2638cbf6569227fcd91eb98b9df8c925c1e466da3e91ff828ce5c87536eab93a"
  }
}

{
  "path": "/vehicle/charging/mgmtData",
  "query": {
    "vin": [
      "REDACTED"
    ]
  },
  "body": {
    "code": 0,
    "message": "success"
  },
  "headers": {
    "date": "Thu, 12 Dec 2024 09:59:06 GMT",
    "content-type": "application/json",
    "content-length": "30",
    "connection": "keep-alive",
    "event-id": "955639740",
    "app-content-encrypted": "1",
    "original-content-type": "application/json",
    "app-send-date": "1733997546411",
    "app-verification-string": "a74890b631c8c5aabd65cc60be4f38f5ff021e012ce089f5d78145673720b45a"
  }
}

{
  "path": "/vehicle/charging/mgmtData",
  "query": {
    "vin": [
      "REDACTED"
    ]
  },
  "body": {
    "code": 0,
    "data": {
      "rvsChargeStatus": {
        "mileageSinceLastCharge": 0,
        "totalBatteryCapacity": 725,
        "workingVoltage": 1556,
        "chargingDuration": 7614,
        "chargingType": 6,
        "fuelRangeElec": 2710,
        "realtimePower": 589,
        "workingCurrent": 19498,
        "chargingGunState": 1,
        "mileageOfDay": 560,
        "startTime": 1733989813,
        "endTime": 1733954768,
        "powerUsageOfDay": 1119,
        "powerUsageSinceLastCharge": 0,
        "mileage": 117830
      },
      "chrgMgmtData": {
        "clstrElecRngToEPT": 271,
        "bmsChrgSts": 1,
        "bmsPackSOCDsp": 812,
        "bmsPTCHeatReqDspCmd": 2,
        "bmsPackCrnt": 19498,
        "bmsChrgCtrlDspCmd": 1,
        "bmsReserStMintueDspCmd": 0,
        "bmsOnBdChrgTrgtSOCDspCmd": 6,
        "bmsEstdElecRng": 304,
        "bmsReserCtrlDspCmd": 2,
        "bmsPTCHeatSpRsn": 0,
        "bmsChrgOtptCrntReq": 156,
        "bmsReserStHourDspCmd": 22,
        "bmsPackVol": 1556,
        "bmsReserSpHourDspCmd": 6,
        "bmsAdpPubChrgSttnDspCmd": 2,
        "chrgngRmnngTimeV": 0,
        "bmsReserSpMintueDspCmd": 0,
        "bmsAltngChrgCrntDspCmd": 0,
        "bmsChrgSpRsn": 0,
        "chrgngRmnngTime": 41
      }
    },
    "message": "success"
  },
  "headers": {
    "date": "Thu, 12 Dec 2024 09:57:08 GMT",
    "content-type": "application/json",
    "content-length": "891",
    "connection": "keep-alive",
    "app-content-encrypted": "1",
    "original-content-type": "application/json",
    "app-send-date": "1733997428846",
    "app-verification-string": "11e02d9d4396820dc71abb6a255625daca7b17e737cba7925cb7c34d7f9eacfe"
  }
}

saic/_internal/api/vehicle/control/response:

{
  "path": "/vehicle/control",
  "query": {},
  "body": {
    "code": 0,
    "data": {
      "basicVehicleStatus": {
        "frontRightSeatHeatLevel": 0,
        "steeringWheelHeatFailureReason": 0,
        "rearRightDoor": 0,
        "sideLightStatus": 0,
        "frontLeftTyrePressure": 67,
        "driverWindow": 0,
        "rearRightTyrePressure": 66,
        "rmtHtdRrWndSt": 0,
        "canBusActive": 1,
        "frontRightTyrePressure": 66,
        "driverDoor": 0,
        "frontLeftSeatHeatLevel": 0,
        "lockStatus": 1,
        "powerMode": 0,
        "engineStatus": 0,
        "exteriorTemperature": 0,
        "fuelRange": 2100,
        "extendedData2": 0,
        "currentJourneyId": 1114,
        "extendedData1": 64,
        "mileage": 117270,
        "fuelLevelPrc": 0,
        "steeringHeatLevel": 0,
        "interiorTemperature": 10,
        "batteryVoltage": 132,
        "passengerDoor": 0,
        "clstrDspdFuelLvlSgmt": 0,
        "mainBeamStatus": 0,
        "remoteClimateStatus": 0,
        "vehElecRngDsp": 0,
        "sunroofStatus": 1,
        "currentJourneyDistance": 120,
        "timeOfLastCANBUSActivity": 1733961055,
        "bonnetStatus": 0,
        "bootStatus": 0,
        "fuelRangeElec": 2100,
        "lastKeySeen": 24163,
        "rearRightWindow": 0,
        "vehicleAlarmStatus": 2,
        "wheelTyreMonitorStatus": 0,
        "rearLeftTyrePressure": 66,
        "rearLeftDoor": 0,
        "passengerWindow": 0,
        "rearLeftWindow": 0,
        "dippedBeamStatus": 0
      },
      "gpsPosition": {
        "timeStamp": 1733961056,
        "gpsStatus": 2,
        "wayPoint": {
          "satellites": 6,
          "heading": 0,
          "position": {
            "altitude": 0,
            "latitude": 0,
            "longitude": 0
          },
          "hdop": 11,
          "speed": 0
        }
      },
      "rvcReqType": "AQ==",
      "failureType": 0,
      "rvcReqSts": "Ag=="
    },
    "message": "success"
  },
  "headers": {
    "date": "Wed, 11 Dec 2024 23:50:59 GMT",
    "content-type": "application/json",
    "content-length": "1260",
    "connection": "keep-alive",
    "app-content-encrypted": "1",
    "original-content-type": "application/json",
    "app-send-date": "1733961059591",
    "app-verification-string": "42f6bffcfcb56eb9ab02416d149f12989a5cdaa6f554ff34af29e065cb3c4aff"
  }
}

saic/_internal/api/vehicle/status/response:

{
  "path": "/vehicle/status",
  "query": {
    "vin": [
      "REDACTED"
    ],
    "vehStatusReqType": [
      "2"
    ]
  },
  "body": {
    "code": 0,
    "data": {
      "basicVehicleStatus": {
        "frontRightSeatHeatLevel": 0,
        "steeringWheelHeatFailureReason": 0,
        "rearRightDoor": 0,
        "sideLightStatus": 0,
        "frontLeftTyrePressure": 68,
        "driverWindow": 0,
        "rearRightTyrePressure": 65,
        "rmtHtdRrWndSt": 0,
        "canBusActive": 1,
        "frontRightTyrePressure": 66,
        "driverDoor": 0,
        "frontLeftSeatHeatLevel": 0,
        "lockStatus": 1,
        "powerMode": 0,
        "engineStatus": 0,
        "exteriorTemperature": 0,
        "fuelRange": 2730,
        "extendedData2": 1,
        "currentJourneyId": 1120,
        "extendedData1": 82,
        "mileage": 117830,
        "fuelLevelPrc": 0,
        "steeringHeatLevel": 0,
        "interiorTemperature": 10,
        "batteryVoltage": 148,
        "passengerDoor": 0,
        "clstrDspdFuelLvlSgmt": 0,
        "mainBeamStatus": 0,
        "remoteClimateStatus": 0,
        "vehElecRngDsp": 0,
        "sunroofStatus": 0,
        "currentJourneyDistance": 0,
        "bonnetStatus": 0,
        "handBrake": 0,
        "bootStatus": 0,
        "fuelRangeElec": 2730,
        "lastKeySeen": 24163,
        "rearRightWindow": 0,
        "vehicleAlarmStatus": 2,
        "wheelTyreMonitorStatus": 0,
        "rearLeftTyrePressure": 66,
        "rearLeftDoor": 0,
        "passengerWindow": 0,
        "rearLeftWindow": 0,
        "dippedBeamStatus": 0
      },
      "extendedVehicleStatus": {
        "alertDataSum": [
          0,
          0,
          0,
          0,
          0,
          0,
          0,
          0,
          0,
          0,
          0,
          0,
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        ]
      },
      "gpsPosition": {
        "timeStamp": 1733997543,
        "gpsStatus": 2,
        "wayPoint": {
          "satellites": 11,
          "heading": 198,
          "position": {
            "altitude": 0,
            "latitude": 0,
            "longitude": 0
          },
          "hdop": 5,
          "speed": 0
        }
      },
      "statusTime": 1733997545
    },
    "message": "success"
  },
  "headers": {
    "date": "Thu, 12 Dec 2024 09:59:06 GMT",
    "content-type": "application/json",
    "content-length": "1376",
    "connection": "keep-alive",
    "event-id": "1865151625",
    "app-content-encrypted": "1",
    "original-content-type": "application/json",
    "app-send-date": "1733997546314",
    "app-verification-string": "17e7f05466d1fc01688914a6005b359a70f973c71bdb9b5e506cb4f16ad6f92c"
  }
}

{
  "path": "/vehicle/status",
  "query": {
    "vin": [
      "REDACTED"
    ],
    "vehStatusReqType": [
      "2"
    ]
  },
  "body": {
    "code": 0,
    "message": "success"
  },
  "headers": {
    "date": "Thu, 12 Dec 2024 09:59:03 GMT",
    "content-type": "application/json",
    "content-length": "30",
    "connection": "keep-alive",
    "event-id": "1865151625",
    "app-content-encrypted": "1",
    "original-content-type": "application/json",
    "app-send-date": "1733997543238",
    "app-verification-string": "ddf199ed5886ae9c0b79b29750edf1161fe1b53fb9415cc4ac3404fa645b8b67"
  }
}

{
  "path": "/vehicle/status",
  "query": {
    "vin": [
      "REDACTED"
    ],
    "vehStatusReqType": [
      "2"
    ]
  },
  "body": {
    "code": 0,
    "data": {
      "basicVehicleStatus": {
        "frontRightSeatHeatLevel": 0,
        "steeringWheelHeatFailureReason": 0,
        "rearRightDoor": 0,
        "sideLightStatus": 0,
        "frontLeftTyrePressure": 68,
        "driverWindow": 0,
        "rearRightTyrePressure": 65,
        "rmtHtdRrWndSt": 0,
        "canBusActive": 1,
        "frontRightTyrePressure": 66,
        "driverDoor": 0,
        "frontLeftSeatHeatLevel": 0,
        "lockStatus": 1,
        "powerMode": 0,
        "engineStatus": 0,
        "exteriorTemperature": 0,
        "fuelRange": 2710,
        "extendedData2": 1,
        "currentJourneyId": 1120,
        "extendedData1": 81,
        "mileage": 117830,
        "fuelLevelPrc": 0,
        "steeringHeatLevel": 0,
        "interiorTemperature": -128,
        "batteryVoltage": 148,
        "passengerDoor": 0,
        "clstrDspdFuelLvlSgmt": 0,
        "mainBeamStatus": 0,
        "remoteClimateStatus": 0,
        "vehElecRngDsp": 0,
        "sunroofStatus": 1,
        "currentJourneyDistance": 0,
        "bonnetStatus": 0,
        "handBrake": 0,
        "bootStatus": 0,
        "fuelRangeElec": 2710,
        "lastKeySeen": 24163,
        "rearRightWindow": 0,
        "vehicleAlarmStatus": 2,
        "wheelTyreMonitorStatus": 0,
        "rearLeftTyrePressure": 66,
        "rearLeftDoor": 0,
        "passengerWindow": 0,
        "rearLeftWindow": 0,
        "dippedBeamStatus": 0
      },
      "extendedVehicleStatus": {
        "alertDataSum": [
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        ]
      },
      "gpsPosition": {
        "timeStamp": 1733997419,
        "gpsStatus": 2,
        "wayPoint": {
          "satellites": 11,
          "heading": 198,
          "position": {
            "altitude": 0,
            "latitude": 0,
            "longitude": 0
          },
          "hdop": 5,
          "speed": 0
        }
      },
      "statusTime": 1733997421
    },
    "message": "success"
  },
  "headers": {
    "date": "Thu, 12 Dec 2024 09:57:05 GMT",
    "content-type": "application/json",
    "content-length": "1378",
    "connection": "keep-alive",
    "event-id": "1905558288",
    "app-content-encrypted": "1",
    "original-content-type": "application/json",
    "app-send-date": "1733997425640",
    "app-verification-string": "fead41d0ce726b5f4dd7db1199cb55c1a2f4e8bb066c6a2e6ef314c741d14da0"
  }
}

[nanomad]

Uhm unfortunately @jkrenzer I don't see any value I can use to deduce the lock state... I'll keep this open as a reminder for the future in case we discover something new

[jkrenzer]

Thanks. I am not entirely sure yet, but maybe it is an "optimistic" action (e.g. no state, just triggering) for the ZS, as in the car itself there is also only an unlock button and the lock engages by itself when the cable is plugged into the wallbox/charger. Will try to investigate, when the vehicle is not needed so frequently.