P0A60

Code

LAND ROVER P — Powertrain

Drive Motor A - Phase V - Current

Brand: LAND ROVER

Type: P — Powertrain

Views: UK: 6 EN: 13 RU: 10

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Page language: EN

Open or short in phase V wiring (open, short to ground, short to battery)
Poor connector or corrosion at inverter/motor harness or sensor connector
Faulty phase current sensor or sensing circuitry in the inverter/drive control module
Drive inverter/power electronics (output stage) failure
Motor winding short, partial short, or internal damage in motor phase V
Intermittent contactor/relay or HV supply issue affecting inverter operation

Malfunction Indicator Lamp (MIL) or EV warning lamp illuminated
Reduced drive power, loss of propulsion or limp-home mode
Diagnostic trouble codes stored for motor/inverter current/voltage
Unusual motor noise, vibration or torque fluctuations under load
Intermittent drive availability or sudden power cut-off
Possible drivability faults such as reduced regen or traction control interventions

Record freeze-frame and all stored DTCs; note operating conditions when fault set
Verify vehicle is safe to work on: remove HV interlock/disable high-voltage system and follow manufacturer safety procedures
Use diagnostic tool to view live phase currents for Drive Motor A and compare phases (V vs other phases)
Inspect harness and connectors for damage, corrosion, pin push-out, water intrusion or burns at inverter and motor
Check inverter HV supply, precharge circuit and contactor operation and related fuses/relays
Check insulation resistance between phases and to chassis (megger) following OEM procedures

Phase currents should be approximately equal between the three phases under the same torque demand
At idle/no-load phase current ~0 A (small transient currents possible)
Under load, phase currents vary with torque — may be tens to hundreds of amps depending on vehicle and drive condition
A steady imbalance or spikes/distorted waveform on phase V compared to the other two phases is abnormal
Thresholds: sustained phase-to-phase imbalance >10% or abrupt spikes of tens of amps (manufacturer-specific) may trigger the DTC
Current sensor supply rails (if present) typically stable (check manufacturer values)

Confirm DTC and note freeze-frame data. Attempt to clear the code and perform a drive cycle to see if it returns.
Ensure HV system is made safe and only qualified personnel work on HV components.
With diagnostics active, monitor phase currents for Drive Motor A during various loads; compare phase V to the other two phases for imbalance, noise or missing signal.
Visually inspect high-voltage harness, routing, and connectors at motor and inverter for damage, corrosion, burns or water ingress. Repair any damaged wiring/contacts.
Verify HV battery and inverter supply voltages, precharge resistor function and contactor operation; repair as needed.
Check continuity and resistance of phase V conductor (with HV isolated) and measure insulation resistance between phases and to chassis per OEM procedure.
If available, use an oscilloscope or manufacturer tool to inspect current sensor output/waveform and look for distortion or missing waveform on phase V.
Swap or substitute known-good sensor or inverter module only if permitted by OEM procedures and vehicle design to isolate the failed component.
If motor windings are suspected, perform motor electrical tests (winding resistance, insulation, surge test) and/or perform mechanical inspection for contamination or overheating.
After repair, clear codes and perform road test/drive cycle and recheck for recurrence; check for any required relearns or software updates.

⚠️ Status

Drive Motor A — Phase V current circuit fault detected. Current measurement out of range/imbalance. Service required; may restrict drive performance.

🔴 Repair difficulty: Hard

⏱️ Diagnostic time: 2-6 hours

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P0A60 — Drive Motor A - Phase V - Current