B1472 Toyota Code - A/C Inverter High Voltage Output System Malfunction
Quick Answer
The high voltage is output from the A/C Inverter Assembly to the electric inverter compressor for driving the motor. Common causes include Faulty Hybrid Control ECU, Faulty Electric Inverter Compressor (w/Motor Compressor Assembly), Faulty A/C Inverter (w/Converter Inverter Assembly). 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
- B1472 Toyota indicates A/C Inverter High Voltage Output System Malfunction.
- Common causes
- Common causes include Faulty Hybrid Control ECU, Faulty Electric Inverter Compressor (w/Motor Compressor Assembly), Faulty A/C Inverter (w/Converter Inverter Assembly).
- 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 B1472 Toyota Description
What are the Possible Causes of the DTC B1472 Toyota?
- Faulty Hybrid Control ECU
- Faulty Electric Inverter Compressor (w/Motor Compressor Assembly)
- Faulty A/C Inverter (w/Converter Inverter Assembly)
How to Fix the DTC B1472 Toyota?
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 B1472 Toyota 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.
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Frequently Asked Questions about B1472 Toyota Code
1. What does the OBDII code B1472 mean on a Toyota?
B1472 indicates a malfunction in the A/C inverter high voltage output system, which is responsible for powering the air conditioning system in hybrid or electric Toyota vehicles.
2. What are the common symptoms of code B1472?
Common symptoms include the A/C not functioning properly, reduced cooling performance, or the A/C system shutting off entirely. The check engine or hybrid system warning light may also illuminate.
3. What causes the B1472 code to appear?
Possible causes include a faulty A/C inverter, damaged wiring or connectors in the high-voltage A/C circuit, or a malfunctioning A/C compressor.
4. Can I still drive my Toyota with the B1472 code?
Driving may still be possible, but the A/C system may not work. If the issue is linked to the high-voltage system, it could pose a safety risk, so it’s best to address the issue promptly.
5. How is the B1472 code diagnosed?
A technician will use a scan tool to verify the code, inspect the A/C inverter and associated wiring for damage, and test the high-voltage output system for faults.
6. Can a blown fuse cause the B1472 code?
Yes, a blown high-voltage fuse in the A/C inverter circuit can trigger this code. It’s important to check all related fuses during diagnosis.
7. How can I fix the B1472 code on my Toyota?
Repairs may include replacing the A/C inverter, repairing or replacing damaged wiring, or replacing the A/C compressor if it’s identified as the source of the malfunction.
8. How much does it cost to fix the B1472 code?
Repair costs vary depending on the root cause, but replacing an A/C inverter can range from $1,000 to $2,500, while wiring repairs or fuse replacements are generally less expensive.
9. Can I clear the B1472 code without fixing the problem?
Clearing the code without addressing the underlying issue will likely result in the code returning, as the problem persists in the system.
10. Is the B1472 code specific to hybrid or electric Toyotas?
Yes, the code typically applies to hybrid or electric Toyota models, as these vehicles use high-voltage systems to power the A/C inverter and compressor.
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