AutoCodes – Generic – P1009

P1009 Code - Variable Valve Timing Control Advance Malfunction

Quick Answer

The variable valve timing control (VTC) system controls the phase of the intake camshaft. Common causes include Engine oil level, Dirty engine oil, Check VTC Strainer for blockage. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1009 indicates Variable Valve Timing Control Advance Malfunction.
Common causes: Common causes include Engine oil level, Dirty engine oil, Check VTC Strainer for blockage.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 31,078

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 18, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
Comments
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Code P1009 Description

The variable valve timing control (VTC) system controls the phase of the intake camshaft. It uses oil pressure to operate the VTC actuator, so the valve timing is optimized depending on driving conditions. The Engine Control Module (ECM)/Powertrain Control Module (PCM) monitors the phase control command and the actual timing of the camshaft by using the camshaft position
(CMP) sensor A. If an over-advanced camshaft phase (compared to the directed value) continues or when the camshaft phase is otherwise abnormal, a malfunction is detected, and a Diagnostic Trouble Code (DTC) is stored.

OBDII Code P1009 - Variable Valve Timing Control Advance Malfunction - AutoCodes.com — P1009 Code - Variable Valve Timing Control Advance Malfunction

What does this mean?

What are the Possible Causes of the DTC P1009?

Engine oil level
Dirty engine oil
Check VTC Strainer for blockage
Faulty VTC Oil Control Solenoid or circuit
Faulty VTC Actuator
Engine mechanical problems

How to Fix the DTC P1009?

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

What does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1009 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Makes

P1009 Acura — Variable Valve Timing Control Advance Malfunction
P1009 Audi — Air Mass Meter 1/2 Implausible Signal From Load Detection
P1009 Buick — Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect
P1009 Cadillac — Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect
P1009 Chevrolet — Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect
P1009 Chrysler — Humidity Sensor Module
P1009 Dodge — Humidity Sensor Module
P1009 GMC — Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect
P1009 Honda — Variable Valve Timing Control Advance Malfunction
P1009 Jeep — Humidity Sensor Module
P1009 Ram — Humidity Sensor Module
P1009 Volkswagen — Air Mass Meter 1/2 Implausible Signal From Load Detection

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.