Code
APP_W017
TESLA
Tesla Alert
Cam Msg MIA
AI status
Completed
Completed
100%
Causes
- Camera module has lost power or ground
- Camera hardware failure (internal fault)
- Broken, corroded or disconnected wiring/connector between camera and gateway/ECU
- CAN (or other vehicle network) wiring fault, bus short or open
- CAN transceiver or gateway/module communication fault
- Blown fuse or load shed/power-management state (sleep mode) preventing camera power
Symptoms
- ADAS/autopilot features degraded or unavailable (lane keep, traffic sign recognition, etc.)
- Warning message(s) on instrument cluster or center display referencing camera or Autopilot
- No camera image feed available where expected (diagnostic viewer)
- Related modules report communication timeouts or lost messages
- System may revert to degraded mode or refuse certain autonomous functions
What to check
- Scan vehicle for all DTCs and freeze frame/extended data; note related network codes (U-codes) and chronological order
- Check vehicle infotainment/diagnostic camera feed to confirm camera absent
- Inspect camera connector and harness for corrosion, water, pin damage or loose latch
- Verify camera supply voltage and ground at the camera connector (key ON and relevant states)
- Check fuses/relays supplying camera power and any power-management modules
- Monitor CAN bus for camera message using a scan tool (verify expected CAN ID and message frequency)
Signal parameters
- Expected camera message CAN ID(s) and node identifier (reference vehicle-specific data)
- Message periodicity/heartbeat (expected frequency typically in the 5–30 Hz range depending on message type)
- Message payload should include an 'alive' or status flag, timestamp/counter and checksum/CRC
- CAN bus idle voltages and differential voltage (verify physical layer: CAN_H ~2.5V idle, differential ~0V; active ~>2V differential)
- Error counters, bus-off counters and node transmit/receive counters reported by gateway/module
Diagnostic algorithm
- Read and record all stored and pending DTCs and live data. Note any U-codes indicating bus issues.
- Confirm the camera is indeed not transmitting: use a diagnostic tool to view live CAN frames or the camera feed/data stream and identify the expected CAN ID.
- Visually inspect the camera(s) and harness(es) for damage, water ingress, pin corrosion, loose latches or repair sections.
- With ignition ON, check camera power supply pins for correct battery/ignition voltage and a good ground. Check related fuses/relays.
- Check continuity and resistance of the camera shield, CAN_H and CAN_L wiring back to the gateway/module; repair any opens/shorts.
- Use an oscilloscope or high-speed CAN sniffer to verify physical-layer signals and look for repeated error frames, bus contention or missing messages.
- If wiring and power are good, try swapping the suspected camera with a known-good unit (if available) or substitute harness to isolate camera vs. network/gateway fault.
- Check gateway/module CAN transceiver operation and related power supplies; replace or reprogram gateway if suspected.
- Verify software/firmware versions and apply manufacturer-recommended updates or calibrations; reflash camera/gateway if directed by service information.
- After repair/action, clear codes, confirm camera messages are present and perform functional/road test for ADAS functions.
Likely causes
- Damaged camera connector or pin corrosion
- Camera lost supply voltage (fuse, relay, power distribution)
- CAN bus wiring fault near camera or gateway
- Camera ECU failure after impact or water exposure
- Module disabled by vehicle software update or configuration error
Fault status
Status
Camera message missing — the camera is not transmitting expected messages to the application. ADAS features may be limited until communication is restored.
Repair difficulty: Medium
Diagnostic time: 1.0-3.5 hours
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