What this code means
P2565 may indicate that the PCM is seeing the turbocharger wastegate control actuator position sensor signal higher than expected.
What the vehicle may do
- The vehicle may turn on a warning light.
- The vehicle may have reduced power.
- Boost control may feel abnormal or inconsistent.
Possible fault areas
- A possible issue with the wastegate actuator position signal.
- A possible connector or terminal concern at the turbocharger.
- A possible wiring concern in the related signal or ground circuits.
- A possible PCM concern after other checks are normal.
Diagnostic path
Opening context
Today we’re looking at P2565 on the Honda CR-V 1.5 turbo. In plain language, this code can set when the PCM sees the turbocharger wastegate control actuator position sensor signal higher than it expects. The driver may notice a warning light, reduced power, or boost control that does not feel normal. Broadly, possible fault areas can include the wastegate actuator position signal, the turbocharger connector, related wiring for the signal and ground circuits, or, after the rest of the checks pass, the PCM. Start with the basic system checks and follow a structured diagnostic approach before getting into pinpoint testing.
Confirm the fault first
Begin by duplicating the condition. Turn the vehicle to the ON mode and watch the HDS value for EWG Voltage From Lift Sensor. If that value is more than 4.87 V, the failure is duplicated. That gives you a clean starting point before you disconnect anything or start chasing the circuit.
Simulate the sensor side of the circuit
Next, move into the turbocharger wastegate control actuator position sensor inspection. There is no direct method given here to test the component by itself, so the diagnosis is done through the related components and circuit behavior. With the turbocharger connector, 5P, disconnected, jump terminals No. 3 and No. 4 with a jumper wire. Then turn the vehicle to the ON mode and confirm the HDS EWG Voltage From Lift Sensor value. Normal here is less than 4.87 V. If the value is normal with that jumper in place, the diagnostic direction points toward a problem with the turbocharger. If the value is not normal, keep going into the related circuit checks instead of guessing at a part.
Check the related wiring paths
Before disconnecting the PCM connector, use the HDS to jump the SCS line and wait more than 1 minute. Then prepare for the DCWGL and SG2 open-wire inspection with the turbocharger connector, 5P, disconnected, and PCM connector E, 80P, disconnected. Perform the open-wire inspection according to the connector and terminal table. The normal condition for the DCWGL open-wire inspection is less than 1 Ω, and the normal condition for the SG2 open-wire inspection is also less than 1 Ω. If either one is abnormal, the diagnostic direction is a circuit problem.
PCM conclusion and close
If the earlier inspection items all show normal results, the remaining conclusion in this path is a problem with the PCM. The key is to move in order: confirm the high sensor voltage, simulate the sensor circuit at the turbocharger connector, check the related wiring for opens, and only then make the PCM call. Don’t skip ahead, and don’t replace parts just because the code name sounds like a turbo problem. For more diagnostic training, visit stepdiagnostics.com.
Final check
Use the code to guide the test path, not to guess at a part.
For more guided automotive diagnostics, visit STEP Diagnostics.
