P0A62: Drive Motor A Phase V Current High

P0A62 signals overcurrent in phase V of drive motor A. Hyundai lists it in bulletin 17-01-057-1 for the 2017 Ioniq Hybrid next to P0A5F, P0A65 and the isolation fault P0AA6: the bulletin traces them to coolant leaking inside the traction motor and checks the high-voltage insulation first. Check Engine and hybrid lights came on, acceleration weakened and the air conditioning stopped. The dealer first runs an isolation breakdown test with the scan tool, then checks the motor for coolant and replaces it if needed. A shorted turn or a damaged phase lead to ground gives the same picture on other vehicles. A Hyundai patent describes two measured phases with the third calculated. P0A61 is the low side, P0A60 the general V code, P0A5F and P0A65 phases U and W.

Symptoms

• Check Engine and hybrid warning lights
• Weak acceleration, air conditioning inoperative

Most likely causes

• Coolant inside the traction motor with loss of insulation (Hyundai Ioniq Hybrid)
• Phase V lead or winding shorted to ground or to another phase
• Inverter power stage fault in phase V

What to check, in order

Start with the simplest. You can tick off each step.

1. Read the codes with a hybrid-compatible scanner and write down the freeze frame data
2. Check the sensor's ground and make sure the signal wire is not receiving voltage from another circuit.
3. Make sure the battery cooling air intake is clean
4. Check the 12 V auxiliary battery, which can also trigger warnings
5. Leave any high-voltage measurements to a specialized repair shop

Good to know

• It can trigger limp mode.
• It affects emissions.

What each character of P0A62 means

• P: Powertrain: engine and transmission
• 0: Generic code: same on every make
• A: Hybrid or air and fuel
• 62: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0A62?

If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

What causes code P0A62?

The most common causes are: coolant inside the traction motor with loss of insulation (Hyundai Ioniq Hybrid); phase V lead or winding shorted to ground or to another phase; inverter power stage fault in phase V.

Related codes

• P0A60Drive Motor A Phase V Current
• P0A61Drive Motor A Phase V Current Low
• P0A5FDrive Motor A Phase U Current High
• P0A65Drive Motor A Phase W Current High
• P0AA6Hybrid/EV Battery Voltage System Isolation Fault

Sources

• static.nhtsa.gov: MC 10125162 9999
• patents.google.com: en
• law.cornell.edu: 13 CCR 1968.2

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.