OBD Guide
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P11A3

Camshaft Adjustment Actuator 'B' Cylinder 1

P11A3 is an OBD-II diagnostic trouble code meaning: Camshaft Adjustment Actuator 'B' Cylinder 1. Common causes: vvt solenoid valve malfunction, open or short circuit in control circuit. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine Light Illuminates
  • Reduced engine power
  • Increased fuel consumption
  • Unstable idling
  • Difficulty starting the engine

Causes

  • VVT solenoid valve malfunction
  • Open or short circuit in control circuit
  • Low oil pressure
  • Contamination or jamming of the phase shifter mechanism
  • Wiring Harness Problems

How to Fix

  1. Check the level and condition of the engine oil
  2. Diagnose the solenoid valve control circuit
  3. Check VVT solenoid valve for resistance and operation.
  4. Clean or replace the phase shifter mechanism
  5. Check connectors and wiring harness

Related codes

P11A0P11A1P11A2

FAQ

What does the P11A3 code mean?

P11A3 is an OBD-II diagnostic trouble code that indicates: Camshaft Adjustment Actuator 'B' Cylinder 1

What causes a P11A3 error code?

The most common causes of P11A3 include: VVT solenoid valve malfunction; Open or short circuit in control circuit; Low oil pressure; Contamination or jamming of the phase shifter mechanism.

How do I fix a P11A3 diagnostic trouble code?

To fix P11A3: Check the level and condition of the engine oil. Diagnose the solenoid valve control circuit. Check VVT solenoid valve for resistance and operation.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P11A3?

Yes, but get it checked soon

How much does it cost to fix P11A3?

The estimated repair cost for P11A3 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat