P3416 — Cylinder 2 Exhaust Valve Control Circuit High

OBD2 code P3416 flags a problem with the sensor and actuator circuits (cylinder 2 exhaust valve control circuit high). The car is usually drivable while you plan the repair. Common culprits: poor ground connection, blown fuse feeding the circuit, corroded, loose or damaged connector.

For Ford vehicles

cylinder 2 exhaust valve control circuit – signal too 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 P3416 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 cylinder 2 exhaust valve control for damage, corrosion, chafing or poor contact.
Subsystem check With the cylinder 2 exhaust valve control disconnected, measure signal voltage at the harness connector: a high reading with the component unplugged indicates a short to power in the harness; if it drops to normal, the component itself is faulty.
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 P3416 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P3416 (parts and labor, USD, independent shop rates): Control module repair: $300–$1,000; Repair wiring or connectors: $80–$250; Replace the faulty sensor or actuator: $150–$500. Overall, fixing P3416 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

How do I diagnose P3416 myself?

Start with a scan: confirm P3416, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the cylinder 2 exhaust valve control, and verify the suspect component against live data before buying parts.

Will P3416 clear itself?

Sometimes P3416 clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

What are the symptoms of P3416?

Drivers most often notice: the affected system operates intermittently or not at all, increased fuel consumption in some cases, possible limp mode depending on the affected component, Check Engine Light on.

What is the most common cause of P3416?

The most common causes are: poor ground connection, blown fuse feeding the circuit, corroded, loose or damaged connector.

Is it safe to drive with P3416?

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.

What does P3416 mean?

Behind P3416 is a specific failure in the sensor and actuator circuits: cylinder 2 exhaust valve control circuit high. The onboard computer stores it in the powertrain (engine/transmission) group after verifying the fault over repeated checks.

P3416 refers specifically to cylinder 2. On inline engines cylinders are counted from the front (belt end); on V-engines the numbering depends on the manufacturer, so check the firing-order diagram for your exact model. Location matters for the repair bill: some cylinders require intake manifold removal, which adds labor time.

“Circuit high” means the control module sees a voltage on the cylinder 2 exhaust valve control circuit that is above the expected range — typically close to battery voltage. Physically this points to a short to a power feed, a broken ground return, or a failed component pulling the signal line high.

The module monitors this system continuously while driving. When readings fall outside the expected range for a defined number of drive cycles, it stores P3416 and switches on the warning light. Freeze frame data saved with the code shows the exact conditions — rpm, load, temperature, speed — at the moment the fault was detected, which is the best starting point for diagnosis.

What causes P3416?

signal wire shorted to battery positive
failed cylinder 2 exhaust valve control pulling the signal high
open ground return of the cylinder 2 exhaust valve control
blown fuse feeding the circuit
open or shorted wiring in the circuit
corroded, loose or damaged connector
faulty sensor or actuator of the affected circuit
control module driver fault

Common symptoms of P3416

the affected system operates intermittently or not at all
increased fuel consumption in some cases
possible limp mode depending on the affected component
Check Engine Light on

How to diagnose P3416

Connect an OBD2 scanner, confirm P3416 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
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.
Visually inspect the wiring harness and connectors related to the cylinder 2 exhaust valve control for damage, corrosion, chafing or poor contact.
With the cylinder 2 exhaust valve control disconnected, measure signal voltage at the harness connector: a high reading with the component unplugged indicates a short to power in the harness; if it drops to normal, the component itself is faulty.
Measure reference voltage, ground and signal continuity at the component connector.
Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P3416 does not return.

How to fix P3416

Start with the cheapest and most common causes before replacing expensive parts:

Control module repair — $300–$1,000
Repair wiring or connectors — $80–$250
Replace the faulty sensor or actuator — $150–$500

How much does it cost to fix P3416?

Repair cost depends on which component actually failed. Typical scenarios for P3416 (parts and labor, USD, independent shop rates):

Control module repair: $300–$1,000
Repair wiring or connectors: $80–$250
Replace the faulty sensor or actuator: $150–$500

Overall, fixing P3416 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.

Can you drive with P3416?