What Does P3476 Mean?
The PCM has detected a high voltage condition in cylinder 10's intake valve deactivation control circuit. This typically indicates an open circuit or short to voltage preventing proper valve control.
Common Causes
35%
Open circuit within cylinder 10 deactivation solenoid winding
25%
Wiring harness break or disconnection in control circuit
20%
Short to voltage in wiring harness
12%
Disconnected or damaged electrical connector at solenoid
8%
Failed PCM unable to control circuit properly
Diagnostic Steps
1
Step 1: Inspect electrical connector at cylinder 10 intake valve deactivation solenoid for proper connection and terminal damage
2
Step 2: Disconnect solenoid connector and measure resistance across solenoid terminals; infinite resistance indicates open circuit
3
Step 3: Check for continuity from PCM connector to solenoid connector throughout entire circuit
4
Step 4: Test for unwanted voltage in circuit by checking for voltage at PCM side with solenoid disconnected
5
Step 5: If wiring and solenoid test normal, verify PCM ground circuits and test PCM output with bi-directional controls
Estimated Repair Cost
$150 - $900
Parts + labor, varies by vehicle and location
The PCM has detected a high voltage condition in cylinder 10's intake valve deactivation control circuit. This typically indicates an open circuit or short to voltage preventing proper valve control.
The most common cause of P3476 (Cylinder 10 Deactivation/Intake Valve Control Circuit High) is: Open circuit within cylinder 10 deactivation solenoid winding
Typical repair costs for P3476 range from $150 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to operate vehicle. Fuel economy will be negatively impacted as cylinder deactivation feature will be disabled.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P3476 to identify the root cause.
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Quick Info
Category
Powertrain
System
Cylinder Deactivation System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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