P1565 — Intake Manifold Runner Control (Bank 2) Stuck Open

P1565 — Intake Manifold Runner Control (Bank 2) Stuck Open. A fault in the sensor and actuator circuits. The car is usually drivable while you plan the repair. Typical causes: blown fuse feeding the circuit, faulty sensor or actuator of the affected circuit, open or shorted wiring in the circuit.

For Ford vehicles

speed control command switch out of range high

powertrain (engine/transmission)

Is it safe to drive?

Short-term driving is OK In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

How to diagnose with an OBD scanner

Read the code and freeze frame Connect an OBD2 scanner, confirm P1565 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the intake manifold runner control (bank 2) for damage, corrosion, chafing or poor contact.
Subsystem check Command the intake manifold runner control (bank 2) on and off with a scanner and watch the feedback signal; then remove and inspect the mechanism for sticking before replacing it.
Subsystem check Measure reference voltage, ground and signal continuity at the component connector.
Subsystem check Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P1565 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P1565 (parts and labor, USD, independent shop rates): Control module repair: $300–$1,000; Replace the faulty sensor or actuator: $150–$500; Repair wiring or connectors: $80–$250. Overall, fixing P1565 usually costs between $80 and $1,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

Is it safe to drive with P1565?

In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

How do I diagnose P1565 myself?

Start with a scan: confirm P1565, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the intake manifold runner control (bank 2), and verify the suspect component against live data before buying parts.

How much does it cost to fix P1565?

Control module repair — $300–$1,000; Replace the faulty sensor or actuator — $150–$500; Repair wiring or connectors — $80–$250. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.

What is the most common cause of P1565?

The most common causes are: blown fuse feeding the circuit, faulty sensor or actuator of the affected circuit, open or shorted wiring in the circuit.

What does OBD2 code P1565 mean?

When your check engine light illuminates, the vehicle's onboard diagnostics have identified a condition that exceeds normal operating parameters. Code P1565 specifically flags a problem with the Intake Manifold Runner Control system on Bank 2—the mechanism is failing to respond to commands and remains locked in an open position. The powertrain control module monitors the position feedback from this system and compares it against what was commanded. When those two signals don't match after multiple verification cycles, P1565 gets stored and the check engine light activates.

The Intake Manifold Runner Control modulates airflow into the cylinders by adjusting a butterfly valve or sliding mechanism within the intake manifold. This improves volumetric efficiency across different RPM ranges—longer runners work better at low speed, shorter at high speed. Bank 2 refers to the engine bank that does not contain cylinder number one. Before beginning any diagnosis on P1565, you must confirm which bank that is on your specific engine, as V-type engines have two banks while inline engines have only one.

The module does not set P1565 based on a single bad reading. Internal software requires the fault condition to repeat under defined circumstances before illuminating the warning light. The freeze frame data captured alongside P1565 contains engine load, RPM, coolant temperature, and vehicle speed at the moment of failure—these parameters tell you exactly which driving conditions triggered the code, allowing you to reproduce them during testing.

Symptoms of P1565

The intake manifold runner control system operates intermittently or stops functioning entirely
The vehicle may enter limp mode, limiting performance to protect drivetrain components
Fuel economy may worsen as the engine management system compensates for improper airflow
Check Engine Light remains illuminated
Reduced engine power under acceleration in some vehicle applications
Rough idle or unstable RPM in rare cases
Hissing or vacuum leak sounds originating from the intake area

Common Causes of P1565

Carbon buildup, dirt, or corrosion jamming the runner control mechanism—this is the most frequent culprit
Welded relay contacts keeping the circuit energized permanently in one state
Weakened actuator motor or broken return spring unable to move the mechanism
Blown fuse or poor fuse contact feeding power to the circuit
Damaged, corroded, or loose electrical connectors
Open or shorted wiring within the control circuit
Faulty position sensor providing incorrect feedback to the control module
Failed control module output driver (less common but possible)

How to Diagnose P1565

Connect an OBD2 scanner and retrieve all stored codes. Record P1565 along with the freeze frame data—this snapshot shows engine conditions when the failure occurred. Clearing codes without recording this data loses valuable diagnostic information.
Check for related diagnostic trouble codes. Secondary codes often point directly to the root cause, such as sensor failures or circuit malfunctions. Review manufacturer technical service bulletins for your make and model using your VIN at the manufacturer website or NHTSA database—many P0xxx codes have documented fixes or calibration updates.
Perform a thorough visual inspection of all wiring and connectors associated with the Bank 2 intake manifold runner control. Look for damaged insulation, corrosion, bent pins, or connector housings that allow moisture intrusion.
Using a scanner with actuator test capabilities, command the runner control to cycle open and closed while monitoring the position sensor feedback. The actual position should track the commanded position. Then physically remove and inspect the mechanism for binding, carbon deposits, or physical damage.
Measure voltage, ground, and signal continuity at the component connector using a multimeter. Verify proper reference voltage from the control module and clean ground paths.
Conduct a wiggle test on the harness while observing live data on the scanner. Intermittent signal drops indicate broken wires that only fail under vibration or movement.
After repairs, clear the code and perform a complete drive cycle including the specific conditions from your freeze frame data. Re-scan to confirm P1565 does not return.

Repair Options and Costs

Address the least expensive and most probable causes before replacing major components. Wiring and connector issues typically cost $80–$250 including labor. Replacing a faulty actuator or position sensor generally runs $150–$500 depending on parts pricing and labor time. Control module repair or replacement represents the most expensive scenario at $300–$1,000.

Driving Safety Assessment

The vehicle typically remains drivable with P1565 stored, though you may notice diminished performance or an inoperable secondary air system. If the car exhibits stalling, failure to start, or warning lights for braking or steering systems, address the issue immediately. Otherwise, schedule repair at your earliest convenience—prolonged operation with this fault may trigger emissions failures at inspection time.