U12B0 Infiniti Code - Power Supply Voltage Low
Quick Answer
The Diagnostic Trouble Code (DTC) sets when the Audio and Video (AV) Control Unit supply voltage exceeds lower limits. Common causes include Faulty Audio and Video (AV) Control Unit, AV Control Unit harness is open or shorted, AV Control Unit circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- U12B0 Infiniti indicates Power Supply Voltage Low.
- Common causes
- Common causes include Faulty Audio and Video (AV) Control Unit, AV Control Unit harness is open or shorted, AV Control Unit circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code U12B0 Infiniti Description
What are the Possible Causes of the DTC U12B0 Infiniti?
- Faulty Audio and Video (AV) Control Unit
- AV Control Unit harness is open or shorted
- AV Control Unit circuit poor electrical connection
How to Fix the DTC U12B0 Infiniti?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the U12B0 Infiniti code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the U12B0 Infiniti code?
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Frequently Asked Questions about U12B0 Infiniti Code
1. What are the common symptoms of OBDII code U12B0 in an Infiniti related to power supply voltage being low?
The common symptoms include dimming lights, electrical system malfunctions, difficulty starting the vehicle, and intermittent power loss.
2. What are the possible causes of OBDII code U12B0 in an Infiniti indicating a low power supply voltage?
The low power supply voltage can be caused by a weak battery, faulty alternator, loose or corroded battery connections, or a failing voltage regulator.
3. How can I diagnose the root cause of OBDII code U12B0 in my Infiniti related to low power supply voltage?
To diagnose the issue, you can start by checking the battery voltage, inspecting the alternator output, testing the voltage regulator, and examining the battery connections for any damage or corrosion.
4. Can driving with OBDII code U12B0 in an Infiniti indicating low power supply voltage cause further damage to the vehicle?
Continuously driving with low power supply voltage can potentially damage the vehicle's electrical components and lead to more serious issues, so it is advisable to address the problem promptly.
5. Are there any DIY repair tips for fixing OBDII code U12B0 in an Infiniti related to low power supply voltage?
DIY repair tips include checking and tightening battery connections, testing the battery and alternator using a multimeter, and replacing the battery or alternator if necessary.
6. How much does it typically cost to repair OBDII code U12B0 in an Infiniti due to low power supply voltage?
The cost of repairing OBDII code U12B0 can vary depending on the root cause of the issue. Costs may range from a simple battery replacement to a more complex alternator repair or replacement.
7. Can resetting the OBDII code U12B0 in an Infiniti resolve the low power supply voltage issue temporarily?
Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the low power supply voltage. It is important to diagnose and address the root cause of the issue.
8. What are the potential risks of ignoring OBDII code U12B0 in an Infiniti related to low power supply voltage?
Ignoring the code can lead to unexpected breakdowns, complete loss of electrical power while driving, and potential damage to other electrical components in the vehicle.
9. Is it safe to continue driving my Infiniti with OBDII code U12B0 indicating low power supply voltage?
It is not recommended to continue driving the vehicle with this code present, as it can cause further damage and potentially leave you stranded due to electrical system failure.
10. How long does it typically take to repair OBDII code U12B0 in an Infiniti related to low power supply voltage?
The repair time can vary depending on the exact cause of the low power supply voltage. Simple fixes like tightening connections may take minutes, while more complex repairs could take several hours to complete.
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