OBD Guide
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P16D2

Intake Rocker Arm Solenoid Valve 2 Control Circuit Low Voltage

P16D2 is an OBD-II diagnostic trouble code meaning: Intake Rocker Arm Solenoid Valve 2 Control Circuit Low Voltage. Common causes: intake rocker arm solenoid valve malfunction, open or short circuit in control circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • Dips during acceleration

Causes

  • Intake rocker arm solenoid valve malfunction
  • Open or short circuit in control circuit
  • Poor contact in solenoid connector
  • Engine control unit malfunction
  • Circuit power problems

How to Fix

  1. Check the condition of the solenoid wiring and connectors
  2. Measure the resistance of the solenoid valve
  3. Check voltage on control circuit
  4. Replace faulty solenoid valve
  5. Reset the error code and check the system operation

Related codes

P16D0P16D1P16D3

FAQ

What does the P16D2 code mean?

P16D2 is an OBD-II diagnostic trouble code that indicates: Intake Rocker Arm Solenoid Valve 2 Control Circuit Low Voltage

What causes a P16D2 error code?

The most common causes of P16D2 include: Intake rocker arm solenoid valve malfunction; Open or short circuit in control circuit; Poor contact in solenoid connector; Engine control unit malfunction.

How do I fix a P16D2 diagnostic trouble code?

To fix P16D2: Check the condition of the solenoid wiring and connectors. Measure the resistance of the solenoid valve. Check voltage on control circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P16D2?

Yes, but get it checked soon

How much does it cost to fix P16D2?

The estimated repair cost for P16D2 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat