P0A69Drive Motor B Phase V Current
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0A69 flags a general fault in the current of phase V of drive motor B. No manufacturer documents P0A69 publicly. Phase V matters doubly on many inverters: a Hyundai patent describes designs that measure only two of the three phase currents and calculate the remaining one, so a faulty V reading also distorts the computed phase. A Caterpillar patent detects a failed sensor through the zero-sum rule of the three phase currents and can then estimate the missing value. CARB requires monitoring of electric drive components for circuit faults and plausibility. P0A6A and P0A6B are the low and high variants, P0A66 and P0A6C phases U and W, P0A60 the motor A equivalent. The driver sees a hybrid warning and motor B is taken out of service.
- What you may notice
- Hybrid system warning and MIL
- Reduced power, motor B no longer contributes
- Likely causes
- LikelyPhase V current sensor of motor B failed
- PossibleFault on the motor B inverter board or power stage
- RarePhase V high-voltage cable or terminal loose or damaged
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €300 – €6,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.