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P0076 Code Explained: Intake Valve Control Solenoid Circuit Low Bank 1 Causes, Symptoms & Fixes

P0076 code displayed on an OBD-II scanner with the Bank 1 intake valve control solenoid, low circuit voltage, grounded wiring, and VVT camshaft actuator highlighted.

If your OBD-II scanner displays P0076, your vehicle’s Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected a lower-than-expected electrical signal in the Bank 1 intake valve control solenoid circuit.

The generic OBD-II definition for P0076 is:

Intake Valve Control Solenoid Circuit Low Bank 1

Depending on the manufacturer or scan tool, the description may appear as:

The intake valve control solenoid is part of the engine’s variable valve timing system. It regulates pressurized engine oil flowing to the intake camshaft actuator or cam phaser, allowing the PCM to advance or retard intake valve timing.

P0076 is stored when the PCM sees circuit voltage, current flow, or driver feedback below its calibrated limit. Common causes include:

The accepted generic definition is Intake Valve Control Solenoid Circuit Low Bank 1. Bank 1 is the side containing cylinder number 1, and the code indicates that the PCM has detected a circuit signal below specification.

Possible symptoms include:

For additional diagnostic information, visit:

P0076 Quick Facts

ItemInformation
OBD-II CodeP0076
DescriptionIntake Valve Control Solenoid Circuit Low Bank 1
CategoryPowertrain
SystemVariable Valve Timing
Main ComponentIntake Valve Control Solenoid
Affected SideBank 1
Fault TypeLow Circuit Voltage or Current
Common Electrical CauseShort to Ground
SeverityModerate
Safe to Drive?Sometimes, for a short distance
Typical Repair Cost$100–700

What Does P0076 Mean?

P0076 means the PCM has detected that the electrical signal in the Bank 1 intake valve control solenoid circuit is below the expected operating range.

The affected circuit may include:

Depending on the circuit design, “circuit low” may indicate:

P0076 is primarily an electrical fault code.

Low or dirty engine oil can create additional variable valve timing problems, but oil contamination by itself does not explain a control wire that is shorted to ground.

What Is Bank 1?

Bank 1 is the side of the engine containing cylinder number 1.

On an inline engine, there is only one cylinder bank, so the entire engine is considered Bank 1.

On a V-type engine, such as a:

there are two cylinder banks.

Bank 1 is not automatically:

The correct location depends on the engine’s cylinder-numbering arrangement.

Use:

to identify Bank 1.

Guessing which side is Bank 1 may save three minutes initially and cost an hour after replacing the perfectly functional solenoid on Bank 2.

What Is an Intake Valve Control Solenoid?

The intake valve control solenoid is an electrically operated oil-control valve used by the engine’s variable valve timing system.

Depending on manufacturer terminology, it may also be called:

The solenoid regulates oil flow to the intake camshaft actuator or cam phaser.

This allows the PCM to adjust intake camshaft timing according to:

Variable valve timing can improve:

The PCM commonly controls the solenoid with a pulse-width-modulated electrical signal. A P0076 code is set when the monitored circuit voltage remains below specification.

How the Intake Valve Control Solenoid Circuit Works

Many VVT solenoids use two electrical terminals.

A common circuit design includes:

  1. Battery or ignition voltage supplied to one terminal
  2. PCM-controlled ground connected to the other terminal

The PCM switches the ground circuit rapidly using pulse-width modulation.

This controls:

The PCM may monitor:

Other vehicles may use a high-side driver where the PCM controls power instead of ground.

Because designs vary, the phrase “circuit low” must be interpreted using the correct wiring diagram.

On one design, it may indicate a control wire shorted to ground.

On another, it may indicate that the expected voltage is missing because of:

What Does “Circuit Low” Mean?

“Circuit low” means the PCM sees an electrical value below its calibrated threshold.

It does not necessarily mean:

It refers to the monitored electrical circuit.

Possible circuit-low conditions include:

The PCM may respond by:

P0075 vs P0076 vs P0077

CodeDescriptionTypical Meaning
P0075Intake Valve Control Solenoid Circuit Bank 1General circuit malfunction
P0076Intake Valve Control Solenoid Circuit Low Bank 1Circuit signal below expected range
P0077Intake Valve Control Solenoid Circuit High Bank 1Circuit signal above expected range

Related Bank 2 codes include:

CodeDescription
P0081Intake Valve Control Solenoid Circuit Bank 2
P0082Intake Valve Control Solenoid Circuit Low Bank 2
P0083Intake Valve Control Solenoid Circuit High Bank 2

P0076 does not automatically prove the solenoid is defective.

The low circuit condition may be caused by:

P0076 vs P0010

P0010 is generally defined as:

“A” Camshaft Position Actuator Circuit Bank 1

P0076 is defined as:

Intake Valve Control Solenoid Circuit Low Bank 1

Depending on manufacturer terminology, both codes may involve the intake camshaft oil-control solenoid.

However, P0076 specifically indicates a low electrical circuit condition, while P0010 is a broader actuator-circuit code.

Always use the diagnostic procedure written for the exact:

How the PCM Detects P0076

The PCM may set P0076 when:

The test may run:

The PCM may store:

Some vehicles enter a failsafe mode until normal circuit voltage is restored.

Symptoms of P0076

Possible symptoms include:

The specific symptoms depend on:

The PCM may disable the VVT system and leave the intake camshaft in a mechanically safe position.

The engine may continue operating, but it may feel as though the performance calibration was replaced with a polite request to accelerate eventually.

Can P0076 Cause a Rough Idle?

Yes.

If the intake camshaft becomes stuck or defaults to an unsuitable position, the engine may experience:

However, a rough idle can also be caused by:

Confirm that the P0076 fault is actively affecting camshaft control before blaming every engine symptom on the VVT solenoid.

Can P0076 Cause Poor Acceleration?

Yes.

The PCM uses variable intake camshaft timing to improve airflow and cylinder filling across different engine speeds.

If VVT control is disabled, the engine may lose:

Poor acceleration and reduced fuel economy are commonly reported symptoms of P0076.

Common Causes of P0076

1. Intake Valve Control Solenoid Shorted Internally

The solenoid’s internal coil may short between windings.

This can cause:

An internally shorted solenoid is one of the most common direct causes.

The solenoid should be replaced if resistance is below the manufacturer’s specified range.

2. Control Wire Shorted to Ground

The PCM control wire may rub through its insulation and contact:

A short to ground may hold the circuit permanently low.

Depending on circuit design, the solenoid may remain:

A short-to-ground fault may also damage the PCM driver.

3. Melted Wiring Harness

The intake solenoid wiring may run near:

Heat can:

Inspect heat shields and harness retainers.

4. Chafed Wiring

The harness may rub against:

Engine vibration may eventually wear through the insulation.

A wire does not need to be dramatically severed to cause P0076. It may only need one exposed section touching ground whenever the engine moves.

5. Failed Intake Valve Control Solenoid

The solenoid may fail electrically because of:

It may also stick mechanically because of:

P0076 is fundamentally an electrical code, so verify coil resistance and circuit operation before concentrating only on mechanical sticking.

6. Corroded Connector Terminals

Corrosion can cause:

Inspect for:

Connector problems and damaged wiring are recognized common causes of P0076.

7. Oil-Contaminated Connector

Oil may enter the connector because of:

Oil can:

Clean the connector and repair the source of the leak.

8. Connector Shorted Between Terminals

Water, metal debris, damaged insulation, or bent terminals may bridge:

A bridged connector can hold the monitored circuit low.

9. Incorrectly Wired Replacement Connector

A replacement pigtail may have:

Verify connector pinout with the wiring diagram.

Matching wire colors is useful only when everyone who previously repaired the harness also understood the wiring diagram.

10. Missing Solenoid Power Supply

Some circuit designs may appear low when the expected solenoid supply voltage is missing.

Possible causes include:

If several actuators share the same code family, inspect the common power supply.

11. Blown Fuse

A fuse may blow because of:

Do not repeatedly replace a blown fuse without finding the short.

A fuse is a protection device, not a subscription service.

12. Failed Relay

A worn or damaged relay may create:

Inspect the relay if it powers:

Multiple circuit codes may indicate a shared relay problem.

13. High-Resistance Power Circuit

Although P0076 describes a low circuit, the underlying cause may be excessive resistance on the supply side.

Possible causes include:

The solenoid may receive some voltage but not enough to operate correctly.

A voltage-drop test under load is more useful than an unloaded continuity test.

14. Poor Engine or PCM Ground

A poor ground can disrupt PCM driver operation and electrical monitoring.

Inspect:

A ground problem often causes multiple unrelated codes.

15. Low System Voltage

A weak battery or charging-system problem may contribute to abnormal circuit behavior.

Check for:

Low system voltage is less likely when P0076 is the only stored code but should be checked when several circuit-low codes appear together.

16. Low Engine Oil Level

Low engine oil does not usually create the electrical low signal directly.

However, it can cause:

Low oil level is commonly included among conditions that may accompany P0076 and other VVT faults.

Always inspect oil level before advanced diagnosis.

17. Dirty or Sludged Oil

Dirty oil may restrict:

This may create additional codes such as:

Changing contaminated oil may improve hydraulic operation, but it will not repair a grounded control wire.

18. Incorrect Oil Viscosity

Oil that is too thick or too thin may cause:

Use the manufacturer-specified:

19. Clogged Solenoid Screen

Some solenoids contain a fine mesh screen.

It may become restricted by:

A blocked screen is more likely to cause a timing-performance code, but contamination may accompany an electrically failing solenoid.

20. Incorrect Solenoid Installed

An incorrect replacement solenoid may have:

An incorrect coil resistance can immediately set P0076.

21. PCM Software Problem

PCM software may incorrectly:

Check for:

Software faults are less common than wiring and solenoid failures.

22. Failed PCM Driver

The PCM’s solenoid driver may fail because of:

Only suspect the PCM after confirming:

Replacing the PCM before testing the solenoid coil is an expensive method of proving that electricity still follows basic rules.

Is P0076 Serious?

P0076 is generally considered a moderate-severity code.

The vehicle may remain drivable, but the intake camshaft timing system may become:

Possible consequences include:

The code becomes more serious if:

Can You Drive With P0076?

You may be able to drive a short distance if:

Avoid driving if:

A failed VVT circuit usually does not destroy the engine immediately.

A shorted harness melting against the cylinder head deserves less optimism.

How to Diagnose P0076

Step 1: Scan for All Stored Codes

Check for:

Record:

Multiple circuit-low codes may indicate a common electrical problem.

Step 2: Confirm Bank 1

Identify:

Do not confuse:

Step 3: Check Engine Oil Level

Park on level ground and verify the oil level.

If low:

Do not overfill.

Step 4: Inspect Oil Condition

Check for:

Perform an oil and filter change when needed, but continue electrical diagnosis if P0076 remains.

Step 5: Locate the Bank 1 Intake Solenoid

Common locations include:

Confirm the component using service information.

Step 6: Inspect the Solenoid Connector

Look for:

Repair connector damage before replacing components.

Step 7: Inspect the Harness

Follow the wiring toward:

Inspect for:

Pay close attention to any location where the harness touches metal.

Step 8: Check the Fuse

Identify the fuse supplying:

If blown:

  1. Disconnect the solenoid.
  2. Inspect solenoid resistance.
  3. Test the supply wire for a short to ground.
  4. Inspect other components sharing the fuse.
  5. Repair the fault before installing another fuse.

Step 9: Measure Solenoid Resistance

Disconnect the solenoid and measure resistance across its terminals.

Compare with factory specifications.

Possible results:

Resistance specifications vary considerably by vehicle.

Do not condemn the solenoid using a generic internet resistance value intended for a different engine.

Step 10: Test Each Terminal to the Solenoid Housing

When approved by service information, check for continuity between:

Unexpected continuity may indicate an internal short to the housing.

Step 11: Disconnect the Solenoid and Rescan

Clear the code and observe circuit data with the solenoid disconnected when the diagnostic procedure permits.

If the circuit-low condition disappears or changes to circuit-high:

If the circuit remains low with the solenoid disconnected:

Interpret the result using the wiring diagram.

Step 12: Verify Power-Supply Voltage

With ignition on, test the supply terminal.

Depending on design, expected voltage may be:

If voltage is missing, inspect:

Step 13: Load-Test the Power Circuit

A multimeter may show normal voltage on an unloaded circuit even when corrosion prevents adequate current flow.

Use an approved load test to identify:

Step 14: Test the PCM Control Wire for a Short to Ground

Disconnect the solenoid and PCM as instructed.

Measure resistance between:

Unexpected continuity indicates a short.

Move the harness during testing because the wire may only contact ground in a particular position.

Step 15: Test for a Short Between Circuits

Check whether the control wire is shorted to:

Harness damage may connect more than two wires together.

Step 16: Check Circuit Continuity

Test both wires from the solenoid connector to their destinations.

Look for:

A healthy circuit should meet the manufacturer’s resistance specification.

Step 17: Perform Voltage-Drop Tests

Test voltage drop across:

Perform the test while the circuit is commanded on.

Voltage-drop testing can reveal resistance that a continuity test misses.

Step 18: Command the Solenoid With a Scan Tool

Use a bidirectional scan tool when supported.

Monitor:

Possible results:

Step 19: Use a Current Clamp When Available

A low-current clamp can measure solenoid current without opening the circuit.

Compare:

Excessive current strongly suggests:

Step 20: Examine the Control Signal With an Oscilloscope

An oscilloscope can display:

A waveform stuck near ground may indicate:

Scope testing is especially useful when the code is intermittent.

Step 21: Perform a Wiggle Test

Monitor voltage and current while moving:

Watch for:

Step 22: Test the Solenoid Mechanically

If electrical testing passes, remove the solenoid according to the repair procedure.

Inspect for:

The solenoid may be electrically functional but hydraulically stuck.

This situation usually produces additional VVT performance codes rather than P0076 alone.

Step 23: Compare Bank 1 and Bank 2

On engines with two banks, compare:

A known-good Bank 2 circuit can provide a useful comparison.

Do not assume both sides use identical parts until confirmed.

Step 24: Swap Solenoids Only When Approved

If the Bank 1 and Bank 2 intake solenoids are identical, a controlled swap may help isolate the fault.

After swapping:

Do not swap intake and exhaust solenoids unless service information confirms they are interchangeable.

Step 25: Check PCM Power and Ground

Before condemning the PCM, verify:

A weak PCM ground can create misleading circuit behavior.

Step 26: Check Technical Service Bulletins

Search manufacturer information using:

Possible factory corrections include:

Step 27: Verify the Repair

After completing repairs:

  1. Clear all codes.
  2. Start the engine.
  3. Verify the oil-pressure warning light turns off normally.
  4. Monitor Bank 1 solenoid command.
  5. Check circuit voltage and current.
  6. Compare desired and actual camshaft timing.
  7. Check idle quality.
  8. Road-test under varied load and RPM.
  9. Complete the required drive cycle.
  10. Rescan for pending and confirmed codes.
  11. Confirm P0076 does not return.

Common Repairs and Costs

RepairEstimated Cost
Reseat or clean connector$50–150
Replace connector terminals$75–250
Engine oil and filter change$60–180
Replace intake valve control solenoid$150–500
Repair shorted wiring$150–650
Replace solenoid connector$100–325
Replace fuse or relay after repairing fault$75–250
Repair engine power-supply circuit$150–700
Clean restricted oil passage$200–700
Replace camshaft actuator or phaser$700–2,000+
Replace timing-chain components$1,000–4,000+
Update PCM software$100–300
Replace and program PCM$1,000–2,500+

Actual costs depend on:

A shorted solenoid sitting on top of the valve cover may be relatively inexpensive.

A grounded wire hidden beneath the intake manifold may require an archaeological permit.

Common Diagnostic Mistakes

Avoid these common P0076 diagnostic mistakes:

P0076 is an electrical low-circuit code.

Replacing the entire timing system before inspecting the two-wire connector is an ambitious approach to parts sales, but not an especially efficient diagnostic strategy.

Vehicles Commonly Affected

P0076 is a generic OBD-II code and may appear on various vehicles, including certain:

Manufacturer terminology may include:

The circuit design and exact fault thresholds vary by application, so vehicle-specific service information is essential.

P0076 on Nissan and Infiniti Vehicles

Nissan commonly refers to the component as the:

Intake Valve Timing Control Solenoid Valve

Possible causes include:

The solenoid is generally installed in the cylinder head and controls oil flow to the intake camshaft timing mechanism.

Verify:

P0076 on Hyundai and Kia Vehicles

Hyundai and Kia may call the component:

Common inspection areas include:

P0075, P0076, and P0077 may appear together in diagnostic discussions involving Hyundai and Kia intake VVT circuits, but the exact component and test sequence depend on the engine.

P0076 After an Engine Repair

If P0076 appears after:

inspect for:

Begin diagnosis in the area that was disturbed.

The PCM may be sophisticated, but it cannot electrically reconnect a plug that was left hanging behind the engine.

P0076 After a Blown Fuse

If a VVT or engine-control fuse blows:

  1. Disconnect the Bank 1 intake solenoid.
  2. Measure solenoid resistance.
  3. Test the power wire for a short to ground.
  4. Inspect related actuators sharing the fuse.
  5. Check the harness near hot and moving parts.
  6. Repair the short.
  7. Install the correct fuse.
  8. Command the circuit and monitor current.

Never install a higher-amperage fuse.

That does not repair the fault. It merely changes the wiring harness into the next fuse.

Can Dirty Oil Cause P0076?

Dirty oil can contribute to VVT operation problems, but P0076 specifically describes an electrical low-circuit condition.

Dirty oil may cause:

It generally does not directly cause:

Check oil condition, but do not stop electrical testing because the oil looks overdue.

Can a Bad VVT Solenoid Cause P0076?

Yes.

A VVT solenoid can cause P0076 if its coil:

Measure resistance and current rather than replacing the solenoid based solely on the code description.

Can a Bad Camshaft Position Sensor Cause P0076?

A camshaft position sensor is not a common direct cause of P0076.

The camshaft sensor provides position feedback, while P0076 monitors the intake valve control solenoid circuit.

A bad camshaft sensor is more likely to set:

Diagnose any related codes together.

How to Prevent P0076

Reduce the likelihood of P0076 by:

Frequently Asked Questions

What does P0076 mean?

P0076 means the PCM has detected an electrical signal below specification in the Bank 1 intake valve control solenoid circuit.

What is the full definition of P0076?

The generic definition is:

Intake Valve Control Solenoid Circuit Low Bank 1

Where is Bank 1?

Bank 1 is the side of the engine containing cylinder number 1.

Inline engines have only one bank, which is Bank 1.

What does circuit low mean?

Circuit low means the monitored electrical voltage or driver feedback is below the PCM’s expected range.

It commonly indicates:

Does circuit low mean low engine oil?

No.

The word “low” refers to the electrical circuit signal.

Low engine oil can create related VVT problems but is not the same condition.

What causes P0076 most often?

Common causes include:

Is P0076 serious?

P0076 is moderately serious.

The engine may continue operating, but performance, fuel economy, idle quality, and emissions may be affected.

Can I drive with P0076?

Possibly for a short distance if:

Stop driving if the engine stalls, rattles, loses substantial power, or shows an oil-pressure warning.

Can P0076 cause rough idle?

Yes.

Disabled or incorrectly controlled intake camshaft timing can create a rough or unstable idle.

Can P0076 cause poor acceleration?

Yes.

The engine may lose torque and throttle response if intake camshaft timing cannot be adjusted.

Can P0076 blow a fuse?

Yes.

A shorted solenoid or power wire may blow a shared engine-control fuse.

Can a bad relay cause P0076?

Yes.

A failed relay can remove power or create excessive voltage drop in the solenoid supply circuit.

Can dirty oil cause P0076?

Dirty oil can contribute to mechanical VVT problems, but wiring and electrical testing are required because P0076 is a circuit-low code.

What is the difference between P0075 and P0076?

P0075 indicates a general Bank 1 intake valve control solenoid circuit malfunction.

P0076 specifically indicates a low circuit condition.

What is the difference between P0076 and P0077?

P0076 indicates circuit voltage or driver feedback below specification.

P0077 indicates a circuit signal above specification.

Can I test the VVT solenoid with a multimeter?

Yes.

Common tests include:

Use vehicle-specific specifications.

Can I apply battery voltage directly to the solenoid?

Only when the manufacturer’s testing procedure permits it.

Some solenoids can be damaged by:

Does a replacement VVT solenoid require programming?

Usually not.

The vehicle may require:

A replacement PCM would require programming.

How much does P0076 cost to repair?

A solenoid replacement typically costs approximately $150–500.

Wiring, fuse-box, camshaft actuator, timing-chain, or PCM repairs may cost considerably more.

Final Thoughts

The P0076 code means the PCM has detected a low electrical condition in the Bank 1 intake valve control solenoid circuit.

The most common causes include:

Start diagnosis by:

  1. Scanning for related codes.
  2. Correctly identifying Bank 1.
  3. Checking engine oil level and condition.
  4. Inspecting the solenoid connector.
  5. Examining the harness for grounded wiring.
  6. Measuring solenoid resistance.
  7. Checking the circuit fuse and relay.
  8. Verifying supply voltage.
  9. Testing the PCM control circuit for a short to ground.
  10. Commanding the solenoid with a bidirectional scan tool.

Do not interpret “circuit low” as proof that the engine simply needs more oil.

Check the oil, certainly—but P0076 is warning that the electrical circuit is below specification. The actual repair may be a shorted solenoid, grounded wire, damaged connector, failed power supply, or PCM driver problem.

Variable valve timing may involve hydraulics, camshaft phasers, computer-controlled duty cycles, and enough acronyms to frighten a beginner.

But sometimes the entire sophisticated system stops working because one wire rubbed against a metal bracket until electricity found the shorter route home.

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