AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Chevrolet - P2645 Chevrolet

P2645 Chevrolet Code - Intake Rocker Arm Solenoid Valve 1 Control Circuit

- Code Popularity: 27,919 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC P2645 Chevrolet?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Intake Rocker Arm Solenoid Valve 1
  • Intake Rocker Arm Solenoid Valve 1 harness is open or shorted
  • Intake Rocker Arm Solenoid Valve 1 circuit poor electrical connection
⚠ Does your Chevrolet have Safety Recalls? → Check here

How to Fix the DTC P2645 Chevrolet?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes





User Submitted Video

Search for P2645 Chevrolet Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2645 Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P2645 Chevrolet Description

The rocker arm actuator system enables the Engine Control Module (ECM) to change the camshaft lift and duration while the engine is operating. The camshaft has 3 lobes for each intake valve. The inner lobe is for low lift and the 2 outer lobes are for high lift. The rocker arm solenoid valve controls the 2-step lift by controlling the oil flow to the rocker arm. In default mode, a locking pin locks the inner and outer mechanisms of the rocker arm together to provide high lift. When low lift is commanded, oil pressure retracts a locking pin within the rocker arm.
The rocker arm solenoid valve receives a signal from the ECM. The ECM controls the rocker arm solenoid valve by supplying a 12 V PWM signal. The ECM supplies a ground to the low reference circuit.

OBDII Code P2645 Chevrolet - Intake Rocker Arm Solenoid Valve 1 Control Circuit - AutoCodes.com
P2645 Chevrolet Code - Intake Rocker Arm Solenoid Valve 1 Control Circuit

Need More Information on the Code?

Need more information on how to fix the P2645 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2645 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Code P2645 Chevrolet comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P2645 Chevrolet code? Have you replaced any parts?
Any information is appreciated. Thanks