Code
P02E0
LAND ROVER
P — Powertrain
Diesel intake air flow control - Open circuit diesel intake airflow control
Views:
UK: 6
EN: 54
RU: 19
AI status
Completed
Completed
100%
Causes
- Broken or disconnected wiring between ECM and intake air flow actuator
- Corroded or damaged connector at actuator or wiring harness
- Failed intake air flow control actuator (stuck/open internal circuit)
- Blown fuse or loss of power/ground to actuator circuit
- Aftermarket modifications or recent service damage to harness
- Intermittent ECM driver output or internal ECM fault
Symptoms
- Check Engine Light (MIL) on and code P02E0 stored
- Reduced engine performance or limp mode during intake flap fault
- Irregular idle or poor throttle response if intake flap affects airflow
- Possible abnormal intake noise or stuck flap position on inspection
What to check
- Read and record stored codes and freeze-frame data with a scan tool
- Visual inspection of intake airflow actuator, connectors, and wiring for damage, corrosion, or disconnection
- Check relevant fuses and relays feeding the intake airflow actuator circuit
- Backprobe actuator connector to verify supply voltage and ground with ignition on
- Measure continuity/resistance of actuator wiring between connector and ECM pin
- If available, use diagnostic data to command the intake air flow actuator and observe response
Signal parameters
- Key on, engine off: supply voltage to actuator circuit typically battery voltage (~11–14 V) at the power feed (verify with spec)
- Ground circuit should show continuity to chassis ground (near 0 Ω)
- Actuator coil or motor resistance typically in the low ohm to tens of ohms range (varies by design) — open/infinite Ω indicates open circuit
- ECM command may be PWM; expected control frequency typically between tens and a few hundred Hz (refer to manufacturer data)
- When commanded by scan tool, actuator should move within seconds and return to rest when released
Diagnostic algorithm
- Connect a diagnostic scan tool, read and record all stored DTCs and freeze-frame data. Clear codes then attempt to reproduce.
- Perform a careful visual inspection of the intake airflow actuator, flange, and wiring harness. Look for disconnected plugs, broken wires, crushed sections, heat damage, or corrosion.
- Check fuses/relays that supply the actuator. Replace any blown fuses and retest.
- With ignition ON (engine off), backprobe the actuator connector: verify battery supply at the power pin and a good ground. If no supply, trace back to fuse/relay and harness.
- Measure resistance of the actuator (unplug connector). An open (infinite) resistance indicates internal failure of the actuator — replace actuator.
- Check continuity between the actuator connector pins and the ECM connector pins (wiring harness continuity). Repair any open circuits or high-resistance joints.
- If supply and ground are present and wiring to the ECM is good, use the scan tool to command the actuator and observe movement and current draw. No movement with correct command suggests actuator failure.
- If wiring and actuator check OK but code returns, consider ECM driver fault; confirm with wiring bench tests and consult manufacturer procedures before ECM replacement.
- After repairs, clear codes and road-test to verify fault does not return and system operates normally.
Likely causes
- Disconnected or pinched connector at intake air flap/actuator
- Open conductor in harness due to chafing or corrosion
- Failed actuator motor/solenoid with open windings
Fault status
Status
Open circuit detected in diesel intake airflow control circuit — ECM cannot command intake airflow actuator (P02E0 stored).
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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