What Does P3416 Mean?
The PCM has detected voltage in the cylinder 2 exhaust valve control circuit that is higher than expected. This electrical fault indicates a short to voltage preventing normal valve control operation.
Common Causes
35%
Wiring harness shorted to voltage between PCM and exhaust valve solenoid
30%
Failed exhaust valve control solenoid with internal short to power
20%
Damaged or pinched wiring causing intermittent short to battery voltage
10%
Connector moisture or contamination creating unintended voltage path
5%
PCM driver circuit failure with internal short
Diagnostic Steps
1
Step 1: Disconnect cylinder 2 exhaust valve control solenoid and check for voltage at harness connector with key on; should read 0V (voltage present indicates short to power)
2
Step 2: Measure solenoid resistance across terminals; replace if shorted or out of specification
3
Step 3: Inspect wiring harness for damage, particularly where it routes near hot or sharp components
4
Step 4: Check for moisture intrusion in connectors and clean/dry as necessary
5
Step 5: If wiring and solenoid are good, test PCM driver circuit output or substitute known-good PCM
Estimated Repair Cost
$150 - $850
Parts + labor, varies by vehicle and location
The PCM has detected voltage in the cylinder 2 exhaust valve control circuit that is higher than expected. This electrical fault indicates a short to voltage preventing normal valve control operation.
The most common cause of P3416 (Cylinder 2 Exhaust Valve Control Circuit High) is: Wiring harness shorted to voltage between PCM and exhaust valve solenoid
Typical repair costs for P3416 range from $150 to $850, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to drive but may experience rough idle and reduced fuel economy. Continued operation may damage catalytic converter due to improper exhaust valve timing.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P3416 to identify the root cause.
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Quick Info
Category
Powertrain
System
Variable Valve Timing/Cylinder Deactivation System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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