curl --request GET \
  --url https://api.telemax.com.au/api/v2/vehicles/{id}/engine-codes \
  --header 'Authorization: Bearer <token>'

{
  "items": [
    {
      "code": "P0420",
      "description": "Catalyst System Efficiency Below Threshold (Bank 1)",
      "whyThisMatters": [
        "This fault indicates your catalytic converter is no longer processing exhaust gases effectively, which means your vehicle is producing higher levels of harmful emissions than permitted.",
        "If left unaddressed, the engine management system may enter a reduced-power mode, leading to noticeably worse fuel economy and throttle response.",
        "In some regions this fault will cause the vehicle to fail an emissions inspection."
      ],
      "possibleCauses": [
        "The catalytic converter itself has degraded or been poisoned — commonly caused by using leaded fuel, coolant leaks into the exhaust, or high-mileage wear.",
        "A faulty upstream or downstream oxygen sensor is reporting incorrect readings, making a healthy converter appear to be failing.",
        "An exhaust leak upstream of the converter is allowing unmetered air to enter, skewing the sensor readings."
      ],
      "recommendedActions": [
        "Begin by scanning for any additional fault codes, particularly oxygen sensor faults (P0130–P0167), as these should be resolved first before condemning the catalytic converter.",
        "Inspect the exhaust system for any leaks between the engine and the catalytic converter, and repair any found.",
        "If the oxygen sensors test within spec and there are no exhaust leaks, have the catalytic converter tested for flow restriction and converter efficiency under load — replacement is likely required."
      ],
      "severity": "Medium",
      "detectedAt": "2026-04-27T14:30:00",
      "detectedAtFormatted": "27 Apr 2026 2:30 PM",
      "location": {
        "address": "42 George St, Sydney NSW 2000",
        "latitude": -33.8688,
        "longitude": 151.2093
      }
    }
  ],
  "totalResults": 1,
  "lastResultIndex": 1,
  "currentPage": 1,
  "numberOfPages": 1
}