AutoCodes – Honda – P1259 2000 Honda Civic

P1259 2000 Honda Civic Code - VTEC System Malfunction

Quick Answer

The Variable Valve Timing and Lift Electronic Control (VTEC) system activate the VTEC solenoid valve by the command from the Powertrain Control Module (PCM), and it charges/discharges the hydraulic circuit of the VTEC mechanism that is installed in the valve system to switch valve timing between Low and High. Common causes include Low engine oil level or oil pressure, Faulty Variable Valve Timing and Lift Electronic Control (VTEC) solenoid, VTEC Solenoid harness is open or shorted. 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: P1259 2000 Honda Civic indicates VTEC System Malfunction.
Common causes: Common causes include Low engine oil level or oil pressure, Faulty Variable Valve Timing and Lift Electronic Control (VTEC) solenoid, VTEC Solenoid harness is open or shorted.
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 26,514

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 Jul 21, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1259 2000 Honda Civic Description

The Variable Valve Timing and Lift Electronic Control (VTEC) system activate the VTEC solenoid valve by the command from the Powertrain Control Module (PCM), and it charges/discharges the hydraulic circuit of the VTEC mechanism that is installed in the valve system to switch valve timing between Low and High. The PCM monitors oil pressure conditions in the hydraulic circuit of the VTEC mechanism according to the VTEC oil pressure switch downstream of the VTEC solenoid valve. If there is a disparity between the oil pressure condition in the hydraulic circuit that is determined by the PCM command, and the oil pressure condition that is determined by the status of the VTEC oil pressure switch, the system is considered faulty and the P1259 code is stored.

OBDII Code P1259 2000 Honda Civic - VTEC System Malfunction - AutoCodes.com — P1259 2000 Honda Civic Code - VTEC System Malfunction

What does this mean?

What are the Possible Causes of the DTC P1259 2000 Honda Civic?

Low engine oil level or oil pressure
Faulty Variable Valve Timing and Lift Electronic Control (VTEC) solenoid
VTEC Solenoid harness is open or shorted
VTEC circuit poor electrical connection
Faulty VTEC oil pressure switch

How to Fix the DTC P1259 2000 Honda Civic?

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

Make sure the oil level is good and it is not dirty, if the oil is dirty replace it with the correct oil weight. Dirty oil can clog the VTEC assembly so you might have to take it apart and clean it (and replace the seals).

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1259 2000 Honda Civic 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.

Need more information about the P1259 2000 Honda Civic code?

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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.

Frequently Asked Questions about P1259 2000 Honda Civic Code

1. What is OBDII code P1259 on a 2000 Honda Civic indicating?

The OBDII code P1259 on a 2000 Honda Civic indicates a VTEC System Malfunction.

2. What are the common symptoms of a VTEC system malfunction in a 2000 Honda Civic?

Common symptoms of a VTEC system malfunction in a 2000 Honda Civic include a noticeable loss of power, rough idling, and the illumination of the check engine light.

3. What are the possible causes of OBDII code P1259 on a 2000 Honda Civic?

The possible causes of OBDII code P1259 on a 2000 Honda Civic include low engine oil level, faulty VTEC solenoid, clogged VTEC oil passages, or a malfunctioning VTEC pressure switch.

4. How can I diagnose a VTEC system malfunction in my 2000 Honda Civic?

Diagnosing a VTEC system malfunction in a 2000 Honda Civic involves checking the engine oil level, inspecting the VTEC solenoid and pressure switch, and ensuring the VTEC oil passages are clear of any obstructions.

5. Can I continue driving my 2000 Honda Civic with the VTEC system malfunction?

It is not recommended to continue driving your 2000 Honda Civic with a VTEC system malfunction, as it can lead to further damage to the engine and components. It is best to address the issue promptly.

6. How can I repair OBDII code P1259 on my 2000 Honda Civic?

Repairing OBDII code P1259 on a 2000 Honda Civic may involve replacing the VTEC solenoid, cleaning the VTEC oil passages, checking and replacing the VTEC pressure switch, or addressing any underlying engine oil issues.

7. Is it possible to reset the check engine light after fixing the VTEC system malfunction in my 2000 Honda Civic?

After fixing the VTEC system malfunction in your 2000 Honda Civic, you can reset the check engine light using an OBDII scanner or by disconnecting the car's battery for a few minutes.

8. How can I prevent OBDII code P1259 from appearing in my 2000 Honda Civic in the future?

To prevent OBDII code P1259 from appearing in your 2000 Honda Civic in the future, ensure regular maintenance, timely oil changes, and address any issues related to the VTEC system promptly.

9. Will a VTEC system malfunction affect the overall performance of my 2000 Honda Civic?

Yes, a VTEC system malfunction can affect the overall performance of your 2000 Honda Civic by causing a decrease in power output, rough idling, and potential engine issues if left unresolved.

10. Can a DIY enthusiast repair the VTEC system malfunction in a 2000 Honda Civic?

While some aspects of diagnosing and repairing a VTEC system malfunction in a 2000 Honda Civic can be done by a DIY enthusiast with the right tools and knowledge, complex issues may require professional assistance from a mechanic.