What causes B1477 on a Toyota?

Low control power voltage to the inverter Open or short in the inverter low voltage circuit Loose or corroded inverter connector Damaged low voltage harness Failed A/C inverter assembly

How do I fix B1477 on a Toyota?

Confirm the code and read hybrid system data Check the low voltage supply to the inverter Inspect and reseat the inverter connectors Test the inverter low voltage circuit Replace the A/C inverter assembly only after tests fail

B1477 A/C inverter low voltage power resource fault. The inverter control power voltage is outside its specified range

Q: What does B1477 mean on a Toyota?

B1477. A/C inverter low voltage power resource fault. The inverter control power voltage is outside its specified range. Applies to Toyota, Lexus and Scion models that use this code.

Category: Body
Severity: Body Warning Light
Applies to: Toyota, Lexus and Scion models that use this code

What does B1477 mean on a Toyota?

B1477. A/C inverter low voltage power resource fault. The inverter control power voltage is outside its specified range. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B1477

Low control power voltage to the inverter
Open or short in the inverter low voltage circuit
Loose or corroded inverter connector
Damaged low voltage harness
Failed A/C inverter assembly

How to fix B1477

Confirm the code and read hybrid system data
Check the low voltage supply to the inverter
Inspect and reseat the inverter connectors
Test the inverter low voltage circuit
Replace the A/C inverter assembly only after tests fail