OBD Guide

P2645

A Rocker Arm Actuator Control Circuit/Open Bank 1

P2645 is an OBD-II diagnostic trouble code meaning: A Rocker Arm Actuator Control Circuit/Open Bank 1. Common causes: open actuator control circuit, solenoid valve malfunction. Estimated repair cost: $22–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine operation at idle
  • Noises from the timing belt area

Causes

  • Open actuator control circuit
  • Solenoid valve malfunction
  • Poor contact in the connector
  • Malfunction of the rocker arm actuator itself
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the control circuit
  2. Check the condition of connectors and contacts
  3. Check the functionality of the solenoid valve
  4. If necessary, replace the rocker arm actuator
  5. Reset the error code and check the system operation

Related codes

Error P2645 by Vehicle Brand

FAQ

What does the P2645 code mean?

P2645 is an OBD-II diagnostic trouble code that indicates: A Rocker Arm Actuator Control Circuit/Open Bank 1

What causes a P2645 error code?

The most common causes of P2645 include: Open actuator control circuit; Solenoid valve malfunction; Poor contact in the connector; Malfunction of the rocker arm actuator itself.

How do I fix a P2645 diagnostic trouble code?

To fix P2645: Check the integrity of the control circuit. Check the condition of connectors and contacts. Check the functionality of the solenoid valve. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2645?

Yes, but get it checked soon

How much does it cost to fix P2645?

The estimated repair cost for P2645 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat