P2015 Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 1)

P2015 Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 1) is a generic OBD-II diagnostic trouble code indicating that the Engine Control Module (ECM/PCM) has detected a range or performance problem in the Bank 1 intake manifold runner position sensor or switch circuit.

The intake manifold runner system controls the path of intake air entering the engine. Depending on engine speed, engine load, throttle position, and other operating conditions, the runner mechanism changes position to optimize airflow.

A position sensor or switch provides feedback to the ECM/PCM so that the control module can determine whether the runner mechanism is actually reaching the commanded position.

With P2015, the problem is not necessarily that the signal is simply too high or too low.

Instead, the ECM/PCM has determined that the runner position feedback is outside the expected operating range or that the runner system is not performing as expected.

In simple terms, P2015 means the ECM/PCM is not seeing the expected Bank 1 intake manifold runner position or performance.

Possible causes include:

• Faulty intake manifold runner position sensor

• Faulty position switch

• Runner actuator failure

• Sticking intake runner flaps

• Carbon buildup

• Damaged runner linkage

• Excessive mechanical play

• Wiring problems

• Connector problems

• Incorrect sensor installation

• Incorrect replacement sensor

• Vacuum-system problems

• Faulty vacuum-control solenoid

• Intake manifold mechanical damage

• ECM/PCM software or control problems

An important distinction is that P2015 does not automatically mean the position sensor itself is defective.

A mechanical problem with the runner or actuator can also cause the sensor feedback to fall outside the expected range.

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What Does P2015 Mean?

The code description contains several important terms.

Intake Manifold Runner

The intake manifold runner is the passage through which intake air travels toward the engine cylinders.

Many modern engines use variable intake runner systems to alter airflow characteristics according to engine operating conditions.

Depending on the manufacturer, the system may be called:

• Intake Manifold Runner Control (IMRC)

• Intake Manifold Runner System

• Intake Runner Control

• Intake Manifold Tuning

• Variable Intake Manifold

• Intake Manifold Flap Control

The exact design depends on the engine.

The runner system may be used to improve:

• Low-RPM torque

• High-RPM airflow

• Throttle response

• Fuel economy

• Combustion efficiency

• Emissions performance

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Position Sensor / Switch

The position sensor or switch reports the position or operating state of the runner mechanism to the ECM/PCM.

Depending on the vehicle, the system may use:

• Variable position sensor

• Position switch

• Potentiometer-type sensor

• Integrated actuator/position sensor

The ECM/PCM can compare the commanded runner position with the feedback signal.

A simplified system can be represented as:

ECM/PCM → Actuator → Runner mechanism → Position sensor/switch → Feedback → ECM/PCM

P2015 can occur when the feedback does not correspond correctly with the expected runner position or operating range.

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Bank 1

Bank 1 refers to the cylinder bank containing cylinder number one.

On a typical V-type engine:

• Bank 1 = side containing cylinder number one

• Bank 2 = opposite side

Therefore:

P2015 = Bank 1

P2020 = Bank 2

Inline engines generally have only one cylinder bank.

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Range / Performance

The term “Range / Performance” is different from a simple circuit-high or circuit-low condition.

It means that the ECM/PCM has detected that the sensor signal or runner operation is not behaving within the expected parameters.

For example, the control module may command the runner to move from one position to another.

The sensor reports a position.

If the reported position:

• Does not reach the expected value

• Moves too slowly

• Moves too far

• Does not move far enough

• Does not correspond with the commanded position

• Becomes implausible

the ECM/PCM may store P2015.

This means that P2015 can be caused by an electrical problem, a sensor problem, or a mechanical runner problem.

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P2015 Does Not Necessarily Mean the Sensor Is Bad

This is one of the most important points when diagnosing this code.

P2015 is a range/performance code.

Therefore, replacing the position sensor without checking the runner mechanism may not solve the problem.

For example:

ECM commands runner = 80%

Actual runner position = 50%

Position sensor correctly reports 50%

ECM detects a position/performance mismatch

P2015 is stored

In this situation, the sensor may be working correctly.

The actual problem could be:

• Sticking runner

• Carbon buildup

• Weak actuator

• Damaged linkage

• Excessive linkage play

• Mechanical obstruction

This is why P2015 requires both electrical and mechanical diagnosis.

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How Does the Intake Manifold Runner System Work?

The intake runner system changes the path or geometry of intake airflow.

Depending on the engine, the system can include:

• Runner flaps

• Electric actuator

• Vacuum actuator

• Control solenoid

• Position sensor

• Position switch

• Mechanical linkage

The ECM/PCM commands the runner according to engine conditions.

The actuator moves the mechanism.

The sensor reports its position.

The ECM/PCM compares the feedback with the expected position.

A simplified sequence is:

ECM/PCM → Actuator → Runner → Position sensor → Feedback → ECM/PCM

If the actual position does not correspond with the expected operating range or performance, P2015 may be stored.

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Symptoms of P2015

Symptoms vary depending on the vehicle and the underlying fault.

Check Engine Light

The most common symptom is an illuminated Check Engine Light.

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Reduced Engine Performance

If the runner cannot reach its intended position, intake airflow may not be optimized.

Possible symptoms include:

• Reduced acceleration

• Reduced engine power

• Sluggish performance

• Poor response at certain RPMs

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Poor Low-RPM Torque

Some runner systems are designed to improve airflow velocity at low engine speeds.

If the runner system cannot operate correctly, low-RPM torque may decrease.

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Poor High-RPM Performance

If the runner does not open or move to the required position at higher RPM, airflow can be restricted or altered.

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Engine Hesitation

The engine may hesitate during acceleration or during changes in engine load.

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Poor Throttle Response

The vehicle may respond less smoothly to accelerator input.

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Rough Idle

Some vehicles may experience:

• Rough idle

• Uneven engine operation

• Unstable idle speed

However, rough idle is not present on every vehicle with P2015.

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Reduced Fuel Economy

Incorrect intake runner operation can affect combustion efficiency and fuel consumption.

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Increased Emissions

Incorrect airflow management can affect combustion and emissions.

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No Noticeable Symptoms

Some vehicles may show only the Check Engine Light.

The ECM/PCM may place the runner system into a default position to maintain basic engine operation.

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Symptoms That Change With Engine Speed

P2015 can sometimes produce symptoms only within a specific RPM range.

For example:

• Engine performs normally at idle.

• Low-speed driving feels normal.

• Power decreases at higher RPM.

• The Check Engine Light appears after acceleration.

This pattern can indicate that the runner system is failing to reach the position required at a particular engine speed.

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Common Causes of P2015

Faulty Intake Manifold Runner Position Sensor

A sensor can become inaccurate or develop an internal electrical problem.

Possible failures include:

• Incorrect position signal

• Internal wear

• Damaged sensing element

• Dead spots

• Incorrect resistance

• Internal electrical failure

However, the sensor should be tested before replacement.

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Sticking Runner Flaps

Runner flaps may stick because of:

• Carbon buildup

• Dirt

• Corrosion

• Worn bushings

• Damaged shafts

• Mechanical obstruction

A sticking runner is an important potential cause of a range/performance code.

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Carbon Buildup

Deposits inside the intake manifold can restrict runner movement.

The actuator may operate correctly, but the runner may not reach the required position.

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Faulty Runner Actuator

The actuator may have:

• Weak motor

• Internal gear damage

• Electrical failure

• Excessive mechanical resistance

• Incorrect position control

An actuator that cannot move the runner through its complete range can trigger P2015.

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Damaged Runner Linkage

The linkage between the actuator and runner may be:

• Broken

• Disconnected

• Bent

• Worn

• Loose

Excessive play can cause the actuator position and actual runner position to differ.

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Excessive Mechanical Play

Worn shafts, bushings, gears, or linkage components can create excessive movement.

The sensor may report a position that fluctuates or does not correspond accurately with the expected mechanical position.

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Vacuum Actuator Problem

Some intake runner systems use vacuum actuators.

Possible problems include:

• Cracked vacuum hose

• Disconnected hose

• Vacuum leak

• Weak vacuum supply

• Damaged actuator diaphragm

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Faulty Vacuum-Control Solenoid

The solenoid controlling runner vacuum may fail to open or close correctly.

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Damaged or Chafed Wiring

Electrical problems can affect the position feedback.

Possible causes include:

• Broken wires

• Chafed insulation

• Heat damage

• Pinched wires

• Oil contamination

• Previous poor repairs

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Poor Electrical Connector

Possible connector problems include:

• Corrosion

• Loose terminals

• Bent pins

• Moisture

• Poor terminal tension

• Damaged connector lock

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Incorrect Sensor Installation

A recently installed sensor may be:

• Misaligned

• Improperly mounted

• Incorrectly adjusted

• Incorrectly connected

This can produce an inaccurate position signal.

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Incorrect Replacement Sensor

An incorrect sensor can physically fit while still producing the wrong electrical output or operating characteristics.

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Intake Manifold Mechanical Damage

Internal components can be damaged or worn.

Possible problems include:

• Broken runner flap

• Damaged shaft

• Worn bushings

• Internal obstruction

• Damaged runner mechanism

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Reference Voltage Problem

If the position sensor uses a reference-voltage circuit, a problem with that circuit can affect the feedback signal.

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Sensor Ground Problem

A poor ground can alter the sensor output.

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ECM/PCM Software Problem

In some applications, a calibration issue can cause incorrect runner position monitoring.

A manufacturer software update may address a known issue.

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ECM/PCM Fault

A control-module problem is possible but uncommon.

It should generally be considered only after the external components and circuits have been tested.

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Vehicles Commonly Affected by P2015

P2015 can occur on many vehicles equipped with an intake manifold runner position sensor or switch on Bank 1.

Examples may include:

• Ford F-150

• Ford Explorer

• Ford Expedition

• Ford Mustang

• Chevrolet Silverado

• Chevrolet Tahoe

• Chevrolet Suburban

• GMC Sierra

• GMC Yukon

• Cadillac Escalade

• Dodge Charger

• Dodge Challenger

• Jeep Grand Cherokee

• Ram 1500

• Toyota Tundra

• Toyota Sequoia

• Nissan Pathfinder

• Nissan Armada

• Infiniti QX80

• BMW 3 Series

• BMW 5 Series

• Mercedes-Benz E-Class

• Audi Q7

• Volkswagen Touareg

• Porsche Cayenne

This list is not exhaustive.

The exact application depends on:

• Model year

• Engine

• Intake manifold design

• Runner control strategy

• Sensor configuration

• Wiring design

• ECM/PCM calibration

Because P2015 is a generic OBD-II code, the exact diagnostic thresholds and operating strategy can differ between manufacturers.

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How Is P2015 Diagnosed?

P2015 requires more than simply checking whether the sensor has power.

The technician should determine whether the problem is caused by:

1. Sensor feedback

2. Wiring

3. Connector

4. Actuator

5. Runner linkage

6. Mechanical runner movement

7. Vacuum system

8. ECM/PCM control

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Step 1: Scan for Additional Trouble Codes

Use a suitable diagnostic scan tool to retrieve:

• Stored codes

• Pending codes

• History codes

• Freeze-frame data

Look for related codes involving:

• Intake manifold runner control

• Runner position

• Runner actuator

• Sensor reference voltage

• Sensor ground

• Vacuum control

• Engine performance

• Misfires

Additional codes can help identify the root cause.

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Step 2: Review Freeze-Frame Data

Review the conditions under which P2015 was stored.

Depending on the scan tool, check:

• Engine RPM

• Engine load

• Vehicle speed

• Throttle position

• Engine coolant temperature

• Intake air temperature

• Battery voltage

• Runner commanded position

• Runner actual position

If the fault occurs only at a certain RPM or load, that information can help reproduce the problem.

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Step 3: Monitor Live Runner Position Data

If available, compare:

Commanded runner position vs. actual runner position

This is one of the most useful tests for P2015.

Look for:

• Actual position failing to follow commanded position

• Slow movement

• Position overshoot

• Insufficient movement

• Position dropouts

• Unexpected movement

• Runner position remaining fixed

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Step 4: Inspect the Position Sensor

Check the Bank 1 position sensor for:

• Physical damage

• Loose mounting

• Contamination

• Misalignment

• Incorrect installation

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Step 5: Inspect the Electrical Connector

Check for:

• Corrosion

• Moisture

• Bent pins

• Loose terminals

• Poor terminal tension

• Damaged seals

• Broken locking mechanism

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Step 6: Check Sensor Reference Voltage

Using the vehicle-specific wiring diagram, verify the reference voltage.

Do not assume the pin configuration or voltage specification without checking the exact vehicle.

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Step 7: Check Sensor Ground

Verify the sensor ground according to the manufacturer's specification.

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Step 8: Check Sensor Signal

Measure the sensor signal while the runner moves.

The signal should change smoothly and correspond to the runner's position.

Look for:

• Dead spots

• Sudden jumps

• Flat spots

• Signal dropouts

• Incorrect range

• Position values that do not correspond with actual movement

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Step 9: Check Wiring Continuity and Resistance

Test the wiring between the sensor and ECM/PCM.

Check for:

• Open circuit

• Excessive resistance

• Short to ground

• Short to voltage

• Poor terminal contact

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Step 10: Perform a Wiggle Test

Monitor the sensor signal while carefully moving the connector and wiring harness.

A signal change during the test can indicate a wiring or connector problem.

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Step 11: Test the Runner Actuator

If supported by the diagnostic equipment, command the actuator through its operating range.

Verify that the actuator:

• Moves smoothly

• Reaches the commanded positions

• Does not stick

• Does not stop prematurely

• Produces consistent position feedback

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Step 12: Inspect the Runner Linkage

Check for:

• Broken linkage

• Disconnected linkage

• Excessive play

• Worn joints

• Bent components

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Step 13: Check for Mechanical Binding

The runner mechanism should move freely through its intended range.

Inspect for:

• Carbon buildup

• Dirt

• Corrosion

• Worn bushings

• Damaged flaps

• Internal manifold damage

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Step 14: Check Vacuum Operation

For vacuum-operated systems, inspect:

• Vacuum supply

• Vacuum hoses

• Control solenoid

• Actuator diaphragm

• Vacuum reservoir where applicable

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Step 15: Compare Bank 1 and Bank 2

If the engine uses equivalent runner systems on both banks, compare:

• Position sensor signals

• Runner movement

• Actuator response

• Commanded position

• Actual position

A normal Bank 2 system can provide a useful reference.

However, the two banks should only be compared directly when their systems are equivalent.

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Step 16: Check Manufacturer Technical Information

Check for:

• Technical Service Bulletins

• Known intake runner problems

• Wiring harness issues

• Connector problems

• Updated sensors

• Updated actuators

• Software updates

• Calibration procedures

Manufacturer-specific information is especially important for P2015 because the expected runner position range and monitoring strategy can vary.

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Step 17: Perform Required Calibration or Relearn

Some vehicles require a runner position calibration or relearn after replacing:

• Position sensor

• Runner actuator

• Intake manifold

• Runner mechanism

Follow the manufacturer's procedure.

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Step 18: Verify ECM/PCM Operation

If the sensor, wiring, connector, actuator, linkage, vacuum system, and runner mechanism all test correctly but P2015 continues to return, further ECM/PCM testing may be necessary.

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How to Fix P2015

The correct repair depends on the actual cause.

Replace the Faulty Runner Position Sensor

If testing confirms that the sensor is producing an inaccurate or out-of-range position signal, replace it with the correct vehicle-specific component.

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Repair Damaged Wiring

Repair or replace wiring affected by:

• Heat

• Chafing

• Vibration

• Oil

• Moisture

• Previous repairs

Secure the harness correctly after repair.

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Repair or Replace the Connector

If the connector has:

• Corroded terminals

• Loose pins

• Bent terminals

• Poor terminal tension

• Damaged seals

repair or replace it as necessary.

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Repair the Runner Actuator

If the actuator cannot move the runner through its required range, repair or replace it.

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Repair the Runner Linkage

Replace broken, disconnected, bent, or excessively worn linkage components.

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Clean or Repair the Runner Mechanism

If carbon buildup or contamination causes the runner to stick, clean or repair the mechanism according to the manufacturer's procedure.

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Repair Vacuum-System Problems

For vacuum-operated systems, repair:

• Cracked hoses

• Disconnected hoses

• Vacuum leaks

• Faulty control solenoids

• Damaged actuator diaphragms

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Correct Reference or Ground Problems

If the sensor reference voltage or ground circuit is outside specification, repair the relevant electrical circuit.

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Replace the Intake Manifold

If the internal runner mechanism is damaged and cannot be repaired separately, the intake manifold may require replacement.

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Perform Calibration or Relearn

If required, perform the runner position calibration or relearn after replacing the relevant component.

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Update ECM/PCM Software

If a manufacturer software update addresses a runner position monitoring issue, update the ECM/PCM according to the manufacturer's procedure.

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Repair or Replace the ECM/PCM

If all external components and circuits are confirmed to be correct but P2015 continues to return, further module testing may be necessary.

ECM/PCM replacement should be a last resort.

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Clear the Code and Verify the Repair

After completing the repair:

1. Clear P2015.

2. Monitor Bank 1 runner position data.

3. Compare commanded and actual runner position.

4. Check sensor signal voltage.

5. Verify sensor reference voltage.

6. Verify sensor ground.

7. Inspect the connector.

8. Test wiring continuity and resistance.

9. Perform a wiggle test.

10. Command the runner actuator through its range.

11. Inspect the runner linkage.

12. Check for mechanical binding.

13. Check the vacuum system where applicable.

14. Perform the required calibration or relearn.

15. Complete the appropriate drive cycle.

16. Confirm that P2015 does not return.

The vehicle should ideally be tested under the same RPM, load, temperature, and driving conditions in which the original fault occurred.

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What Happens If P2015 Is Ignored?

P2015 usually does not mean that the engine will immediately fail.

However, the ECM/PCM may not be able to correctly control or monitor the Bank 1 intake manifold runner system.

Possible consequences include:

• Reduced engine performance

• Poor throttle response

• Reduced low-RPM torque

• Poor high-RPM performance

• Reduced fuel economy

• Increased emissions

• Engine hesitation

• Rough operation

• Continued Check Engine Light

• Additional runner-system faults

If the runner becomes mechanically stuck, performance problems can become more noticeable.

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Can You Drive With P2015?

In many cases, a vehicle with P2015 can still be driven if the engine starts and operates normally.

P2015 generally does not indicate an immediate catastrophic engine failure.

However, the underlying runner-control problem should be diagnosed and repaired.

Driving should be treated more cautiously if the vehicle also has:

• Severe hesitation

• Significant power loss

• Stalling

• Engine misfires

• Rough running

• Multiple engine-control codes

• Poor throttle response

If the Check Engine Light is flashing or the engine is actively misfiring, the vehicle should be inspected promptly.

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Is P2015 a Serious Code?

P2015 is generally considered a low-to-moderate severity diagnostic trouble code.

The actual severity depends on the underlying problem.

A sensor signal problem may produce relatively minor symptoms.

A sticking runner, damaged linkage, or failed actuator can have a greater effect on engine performance.

Ignoring P2015 may result in:

• Reduced engine performance

• Reduced fuel economy

• Increased emissions

• Poor intake-air management

• Continued Check Engine Light

• Additional runner-system problems

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P2015 vs. P2016

P2015 and P2016 both concern the Bank 1 intake manifold runner position sensor/switch system, but the fault descriptions are different.

Code	General Meaning
P2015	Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 1)
P2016	Intake Manifold Runner Position Sensor / Switch Circuit Low (Bank 1)

The key distinction is:

P2015 = range/performance problem

P2016 = low circuit signal

P2015 indicates that the sensor feedback or runner operation does not correspond correctly with the expected operating range or performance.

P2016 specifically identifies a signal below the expected electrical threshold.

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P2015 vs. P2017

Code	General Meaning
P2015	Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 1)
P2017	Intake Manifold Runner Position Sensor / Switch Circuit High (Bank 1)

The difference is:

P2015 = range/performance

P2017 = high circuit signal

P2015 can involve mechanical movement, actuator operation, sensor accuracy, or electrical problems.

P2017 specifically indicates that the monitored electrical signal is higher than the expected threshold.

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P2015 vs. P2018

Code	General Meaning
P2015	Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 1)
P2018	Intake Manifold Runner Position Sensor / Switch Circuit Intermittent (Bank 1)

Both concern Bank 1, but the fault characteristics differ.

P2015 = range/performance

P2018 = intermittent circuit

P2015 focuses on whether the runner position or sensor feedback is within the expected operating range and follows the commanded position.

P2018 focuses on an intermittent electrical circuit condition.

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P2015 vs. P2019

Code	General Meaning
P2015	Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 1)
P2019	Intake Manifold Runner Position Sensor / Switch Circuit Malfunction (Bank 2)

The main differences are:

P2015 = Bank 1 + range/performance

P2019 = Bank 2 + circuit malfunction

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P2015 vs. P2020

Code	General Meaning
P2015	Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 1)
P2020	Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 2)

These are corresponding range/performance codes for the two banks.

P2015 = Bank 1

P2020 = Bank 2

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P2015 vs. P2021

Code	General Meaning
P2015	Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 1)
P2021	Intake Manifold Runner Position Sensor / Switch Circuit Low (Bank 2)

P2015 identifies a Bank 1 range/performance problem.

P2021 identifies a Bank 2 low-signal condition.

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P2015 vs. P2022

Code	General Meaning
P2015	Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 1)
P2022	Intake Manifold Runner Position Sensor / Switch Circuit High (Bank 2)

P2015 = Bank 1 range/performance.

P2022 = Bank 2 high signal.

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P2015 vs. P2023

Code	General Meaning
P2015	Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 1)
P2023	Intake Manifold Runner Position Sensor / Switch Circuit Intermittent (Bank 2)

P2015 identifies a Bank 1 range/performance problem.

P2023 identifies an intermittent Bank 2 circuit problem.

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P2015 vs. P2076

P2076 concerns the Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Range/Performance (Bank 1).

Code	General Meaning
P2015	Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 1)
P2076	Intake Manifold Tuning (IMT) Valve Position Sensor / Switch Circuit Range / Performance (Bank 1)

The descriptions are very similar, but the two codes should not automatically be assumed to identify the same physical component.

Different manufacturers may use different intake-air control systems, terminology, sensor configurations, and monitoring strategies.

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How to Prevent P2015

Not every runner-system problem can be prevented, but proper maintenance can reduce the likelihood of faults.

Recommended practices include:

• Inspect runner-system wiring during routine service.

• Keep wiring away from excessive engine heat.

• Secure wiring harnesses against vibration.

• Check electrical connectors for corrosion.

• Make sure terminals have proper contact tension.

• Prevent moisture from entering connectors.

• Repair damaged wiring promptly.

• Inspect vacuum hoses on vacuum-operated systems.

• Address excessive intake carbon buildup when appropriate.

• Repair loose or damaged runner linkage.

• Use the correct replacement sensor.

• Follow required calibration procedures.

• Make sure connectors are fully seated after service.

• Avoid damaging wiring during intake manifold repairs.

• Follow manufacturer maintenance recommendations.

• Do not ignore Check Engine Light warnings.

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Final Thoughts

P2015 Intake Manifold Runner Position Sensor / Switch Circuit Range / Performance (Bank 1) indicates that the ECM/PCM has detected that the Bank 1 intake manifold runner position feedback or runner-system operation is outside the expected range or performance parameters.

The most important distinction is that P2015 does not automatically mean the position sensor is defective.

The problem can be caused by:

• Faulty position sensor

• Faulty position switch

• Runner actuator failure

• Sticking runner flaps

• Carbon buildup

• Damaged runner linkage

• Excessive mechanical play

• Wiring problems

• Connector problems

• Incorrect sensor installation

• Incorrect replacement sensor

• Vacuum-system problems

• Faulty vacuum-control solenoid

• Intake manifold mechanical damage

• ECM/PCM software or circuit problems

The best diagnostic approach is to determine whether the sensor signal is wrong or whether the runner is physically failing to reach the commanded position.

Start by scanning for additional trouble codes and reviewing freeze-frame data.

Then monitor live data and compare the commanded runner position with the actual runner position.

The position sensor's reference voltage, ground, and signal should be tested using the manufacturer's specifications.

The connector and wiring should also be inspected for corrosion, loose terminals, damaged insulation, and excessive resistance.

If the electrical circuit checks out, test the runner actuator and inspect the linkage and runner mechanism for sticking, carbon buildup, excessive play, or mechanical damage.

For vacuum-operated systems, inspect the vacuum hoses, control solenoid, and actuator.

The sensor should not automatically be replaced simply because P2015 is stored.

P2015 is generally a low-to-moderate severity code, and many vehicles can still be driven if they operate normally. However, the fault should be repaired because incorrect intake runner operation can affect engine performance, fuel economy, emissions, and throttle response.

After the underlying problem has been repaired, clear the code and perform the required calibration or relearn if applicable.

The vehicle should then be tested through the operating conditions that originally triggered the fault.

The Bank 1 runner should move smoothly, the position feedback should correspond with the commanded position, and P2015 should not return.