APP_W009

Code

TESLA Tesla Alert

Aeb Fault

Brand: TESLA

Type: Tesla Alert

Views: UK: 17 EN: 219 RU: 30

AI status

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Page language: EN

Dirty, blocked, misaligned or physically damaged forward sensors (camera, radar, ultrasonic)
Loose, corroded or damaged connectors and wiring harness related to AEB sensors or module
Loss of power or ground to AEB sensors or control module
Intermittent or lost CAN/bus communication between AEB module and vehicle control modules
Software bug, outdated ECU/AEB software or failed calibration
Internal fault in AEB control module or sensor electronics

AEB warning or system-unavailable message on instrument cluster
Automatic Emergency Braking disabled or functioning intermittently
Dash message indicating AEB fault or check vehicle
Possible false or missing automatic braking events during tests
Related driver-assistance features (forward collision warning, adaptive cruise) degraded or unavailable

Read and save all manufacturer codes and freeze-frame data with a Tesla-capable scan tool
Check vehicle dash/central display messages and Tesla app for related alerts or recommended actions
Visual inspection of forward-facing sensors (camera, radar, ultrasonic): look for dirt, ice, damage, or misalignment
Inspect connectors and wiring for corrosion, bent pins, broken wires, chafing, or recent splice/repair work
Verify 12V battery health and voltage stability; check relevant fuses and relays
Check for other control module communication DTCs (CAN bus errors) that could affect AEB

Connect a Tesla-capable diagnostic tool; record APP_W009 and any other stored or pending codes and freeze-frame data
Check vehicle history: note recent repairs, collisions, software updates or calibrations
Perform a guided visual inspection of all forward sensors and clean lenses; remove ice, snow, heavy dirt or aftermarket attachments
Inspect sensor and module connectors for corrosion, water intrusion, bent pins or loose terminals; repair or reseat as needed
Verify power and ground at the AEB module and sensors; check associated fuses and relays for continuity and correct operation
Review live data: confirm camera/radar health flags, object detection counts, radar range and image-valid status while performing static tests per manufacturer procedure
Check CAN/ethernet communication: verify messages are present and error counters are normal; trace wiring if communication is lost or intermittent
If available, run self-test and automatic calibration routines; perform required sensor re-calibration after any sensor replacement or adjustment
Clear codes and perform a controlled test drive or functional test to reproduce the fault; monitor live data for recurrence
If fault persists and diagnostics point to a specific sensor or module fault, replace the failed component per manufacturer instructions and repeat calibration and verification
If root cause remains unclear or involves proprietary systems, consult Tesla technical service bulletins and consider escalation to manufacturer service

⚠️ Status

AEB fault detected (APP_W009). Automatic Emergency Braking disabled or limited. Service required.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1–3 hours

Repair manuals

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