P0ED6: Generator Phase X Current High

P0ED6 is stored when the current in phase X of the hybrid generator exceeds its permitted limit. No manufacturer documents P0ED6 publicly. Ford gives figures for the comparable U, V and W codes P0A71, P0A74 and P0A77 on its 2019 power-split hybrids: the motor/generator control unit declares overcurrent once the generator current magnitude passes 300 A for 400 microseconds, or 15 A for 200 ms just after power-up, when practically no current should flow. Genuine overcurrent points to a winding short, damaged insulation or a power switch that fails closed; a current sensor with too much gain triggers a false alarm. The inverter shuts down to protect itself, so the hybrid system may stop working. Low side: P0ED5; general code: P0ED4.

Symptoms

• Sudden hybrid system shutdown or loss of ready mode
• MIL and hybrid warning

Most likely causes

• Turn-to-turn or ground short in the phase X winding
• Inverter power switch failed closed
• Current sensor reading too high (false overcurrent)

What to check, in order

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

1. Measure the voltage with the engine off and running
2. Check the sensor's ground and make sure the signal wire is not receiving voltage from another circuit.
3. Clean and tighten the terminals
4. Check the accessory belt
5. Run a battery load test
6. Check the alternator wiring

Good to know

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

What each character of P0ED6 means

• P: Powertrain: engine and transmission
• 0: Generic code: same on every make
• E: Subsystem depends on the code range
• D6: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0ED6?

If the battery warning light comes on, you could get stranded. Turn off electrical accessories and go straight to a repair shop.

What causes code P0ED6?

The most common causes are: turn-to-turn or ground short in the phase X winding; inverter power switch failed closed; current sensor reading too high (false overcurrent).

Related codes

• P0ED4Generator Phase X Current
• P0ED5Generator Phase X Current Low
• P0ED9Generator Phase Y Current High
• P0EDCGenerator Phase Z Current High
• P0A71Generator Phase U Current High

Sources

• fordservicecontent.com: OBDSM1901 HEV
• 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.