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.
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HOMESERVICE MANUALSTOYOTA20054 RUNNER 2WD V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONDIAGNOSTIC TROUBLE CODE DESCRIPTIONSNAVIGATION SYSTEM
2005 Toyota 4 Runner 2WD V8-4.7L (2UZ-FE)
Navigation System
2005 Toyota 4 Runner 2WD V8-4.7L (2UZ-FE)SECTION Navigation System
DIAGNOSTIC TROUBLE CODE CHART
HINT: Titles for each unit are stated in the following order: parts name (physical address) [Name indicated by DTC]
1. RADIO AND NAVIGATION ASSEMBLY (physical address: 140) [AVN]
a. 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.
HINT:
- *1: This code may be stored 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 stored 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.
b. The inspection list for the device indicated by the sub code
HINT: Methods used to verify the cause of the problem are listed in order of probability in the verification column.
c. 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.
d. 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.
2. STEREO COMPONENT AMPLIFIER ASSEMBLY (Physical address: 440) [DSP AMP]
a. 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.
HINT:
- *1: This code may be stored depending on the battery condition or engine start voltage even if no failure is detected.
- *3: This code may be stored if the ignition key is turned to the START position again with the engine running.
- *5: If the device is reported as not existing during verification, check the power source circuit and AVC-LAN circuit for the device.
3. STEREO COMPONENT CONTROLLER ASSEMBLY (Physical address: 1F4) [RSA]
a. 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.
HINT:
- *1: Even if no failure is detected, this code may be stored depending on the battery condition or engine start voltage.
- *2: If the power connector is disconnected after the engine starts, this code is stored after 180 seconds.
- *3: This code may be stored if the ignition key is turned to the START position with the engine running.
- *4: This code may be stored if the ignition key is held in the START position for one 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.
HINT: Titles for each unit are stated in the following order: parts name (physical address) [Name indicated by DTC]
1. RADIO AND NAVIGATION ASSEMBLY (physical address: 140) [AVN]
D5 - 22:
a. 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.
HINT:
- *1: This code may be stored 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 stored 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.
b. The inspection list for the device indicated by the sub code
HINT: Methods used to verify the cause of the problem are listed in order of probability in the verification column.
10:
c. 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.
10 - 43:
44 - 45:
d. 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.
2. STEREO COMPONENT AMPLIFIER ASSEMBLY (Physical address: 440) [DSP AMP]
D7 - E4:
a. 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.
HINT:
- *1: This code may be stored depending on the battery condition or engine start voltage even if no failure is detected.
- *3: This code may be stored if the ignition key is turned to the START position again with the engine running.
- *5: If the device is reported as not existing during verification, check the power source circuit and AVC-LAN circuit for the device.
3. STEREO COMPONENT CONTROLLER ASSEMBLY (Physical address: 1F4) [RSA]
D6 - ED:
E1 - E4:
a. 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.
HINT:
- *1: Even if no failure is detected, this code may be stored depending on the battery condition or engine start voltage.
- *2: If the power connector is disconnected after the engine starts, this code is stored after 180 seconds.
- *3: This code may be stored if the ignition key is turned to the START position with the engine running.
- *4: This code may be stored if the ignition key is held in the START position for one 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.
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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.