What Does P3411 Mean?
The PCM has detected an abnormally low voltage in the cylinder 2 intake valve control or deactivation circuit. This indicates a short to ground condition in the wiring, solenoid, or control circuit.
Common Causes
40%
Wiring harness shorted to ground or engine block
30%
Internal short to ground in intake valve control solenoid
20%
Damaged or pinched wiring at routing points
7%
Moisture intrusion in connector causing short circuit
3%
Failed PCM driver circuit shorting to ground
Diagnostic Steps
1
Step 1: Disconnect cylinder 2 intake valve control solenoid and check if code clears; if so, solenoid is internally shorted
2
Step 2: Measure resistance from control circuit to ground with solenoid disconnected; should read infinite resistance
3
Step 3: Inspect wiring harness for damage, chafing, or areas where wire may contact ground
4
Step 4: Check connectors for oil contamination, corrosion, or moisture that could cause short circuits
5
Step 5: Test solenoid resistance and insulation; replace if shorted or resistance out of specification
Estimated Repair Cost
$150 - $950
Parts + labor, varies by vehicle and location
The PCM has detected an abnormally low voltage in the cylinder 2 intake valve control or deactivation circuit. This indicates a short to ground condition in the wiring, solenoid, or control circuit.
The most common cause of P3411 (Cylinder 2 Deactivation/Intake Valve Control Circuit Low) is: Wiring harness shorted to ground or engine block
Typical repair costs for P3411 range from $150 to $950, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to drive but cylinder deactivation will not function, reducing fuel economy. Short circuit may potentially damage PCM if left unrepaired for extended periods.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P3411 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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