Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Trouble Code Chart
| Terms | Description |
|---|---|
| Physical address | 3-digit, hexadecimal code assigned to all components connected to the AVC-LAN. Individual symbols are specified based on function. Units whose names are unknown or relevant units are displayed with physical addresses. |
| Logical address | 2-digit, hexadecimal code assigned to all the functions in the AVC-LAN system. |
HINT:
Titles for each unit are stated in the following order: parts name (physical address) [Name indicated by DTC]
- RADIO AND NAVIGATION ASSY (physical address: 140) [AVN]
- Logical address: 01 (Communication control)
HINT:
Methods used to verify the cause of the problem are listed in order of probability in the verification column.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
- *1: This code may be recorded depending on the battery condition or engine start voltage even if no failure is detected.
- *2: If the power connector is disconnected after the engine starts, this code is recorded after 180 seconds.
- *3: This code may be stored if the ignition key is turned to the START position again with the engine running.
- *4: This code may be stored if the ignition key is held in the START position for 1 minute or more before returning to the ON position.
- *5: If the device is reported as not existing during verification, check the power source circuit and AVC-LAN circuit for the device.
- Logical address: 21 (SW): 23 (SW with name): 24 (SW converting): 25 (command SW)
HINT:
Methods used to verify the cause of the problem are listed in order of probability in the verification column.
VERIFICATION COLUMNDTC Name Diagnosis Verification See 10 Panel switch error The panel SW detection circuit has a failure. Replace radio and navigation assy REPLACEMENT - Logical address: 58 (Navigation): 80 (GPS)
HINT:
Methods used to verify the cause of the problem are listed in order of probability in the verification column.
- Logical address: 01 (Communication control)
- STEREO COMPONENT AMPLIFIER ASSY (Physical address: 440) [DSP AMP]
- Logical address: 01 (communication control)
HINT:
Methods used to verify the cause of the problem are listed in order of probability in the verification column.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
- *1: This code may be recorded depending on the battery condition or engine start voltage even if no failure is detected.
- *2: If the power connector is disconnected after the engine starts, this code is recorded after 180 seconds.
- *3: This code may be stored if the ignition key is turned to the START position again with the engine running.
- *4: This code may be stored if the ignition key is held in the START position for 1 minute or more before returning to the ON position.
- *5: If the device is reported as not existing during verification, check the power source circuit and AVC-LAN circuit for the device.
- Logical address: 01 (communication control)
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.