OBD Guide

P3485

Cylinder 11 Exhaust Valve Control Circuit/Open

P3485 is an OBD-II diagnostic trouble code meaning: Cylinder 11 Exhaust Valve Control Circuit/Open. Common causes: broken wiring in the control circuit, solenoid valve malfunction. 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 comes on
  • Loss of engine power
  • Increased fuel consumption
  • Unstable engine idling
  • Possible misfires

Causes

  • Broken wiring in the control circuit
  • Solenoid valve malfunction
  • Problems with the connector or contacts
  • Engine control unit malfunction
  • Mechanical failure of the exhaust valve

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the resistance and operation of the solenoid valve
  3. Inspect and clean electrical contacts
  4. Check the voltage supply to the valve
  5. If necessary, replace the faulty valve or wiring

Related codes

Error P3485 by Vehicle Brand

FAQ

What does the P3485 code mean?

P3485 is an OBD-II diagnostic trouble code that indicates: Cylinder 11 Exhaust Valve Control Circuit/Open

What causes a P3485 error code?

The most common causes of P3485 include: Broken wiring in the control circuit; Solenoid valve malfunction; Problems with the connector or contacts; Engine control unit malfunction.

How do I fix a P3485 diagnostic trouble code?

To fix P3485: Check the integrity of the wiring harness. Check the resistance and operation of the solenoid valve. Inspect and clean electrical contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3485?

Yes, but get it checked soon

How much does it cost to fix P3485?

The estimated repair cost for P3485 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat