AutoCodes – Honda – P1259 1996 Honda Civic

P1259 1996 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 1996 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 10,959

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 1996 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 1996 Honda Civic - VTEC System Malfunction - AutoCodes.com — P1259 1996 Honda Civic Code - VTEC System Malfunction

What does this mean?

What are the Possible Causes of the DTC P1259 1996 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 1996 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 1996 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 1996 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 1996 Honda Civic Code

1. What are the common symptoms of OBDII code P1259 in a 1996 Honda Civic?

- Common symptoms include a loss of power, rough idling, poor fuel efficiency, and a noticeable drop in overall engine performance.

2. What does the OBDII code P1259 mean on a 1996 Honda Civic?

- OBDII code P1259 indicates a VTEC system malfunction in a 1996 Honda Civic, specifically related to the VTEC oil pressure switch circuit.

3. What are the potential causes of the VTEC system malfunction code P1259 in a 1996 Honda Civic?

- Possible causes include a faulty VTEC oil pressure switch, low engine oil level, dirty engine oil, wiring issues, or a malfunctioning VTEC solenoid.

4. How can I diagnose the VTEC system malfunction code P1259 in my 1996 Honda Civic?

- Diagnosis typically involves checking the oil level and condition, inspecting the VTEC oil pressure switch and solenoid, and testing the wiring for any faults using a multimeter.

5. Can I drive my 1996 Honda Civic with the VTEC system malfunction code P1259?

- It is not recommended to drive the vehicle with the code P1259 present, as it can lead to further damage and potential engine issues. It's best to address the problem promptly.

6. How can I repair the VTEC system malfunction code P1259 in my 1996 Honda Civic?

- Repairs may involve replacing the VTEC oil pressure switch or solenoid, ensuring proper engine oil levels and quality, and checking and repairing any faulty wiring connections.

7. Are there any DIY tips for fixing the VTEC system malfunction code P1259 in a 1996 Honda Civic?

- DIY enthusiasts can start by checking the engine oil level and quality, inspecting the VTEC oil pressure switch, and cleaning any electrical connections before seeking professional help if needed.

8. Will resetting the OBDII code P1259 in my 1996 Honda Civic make the issue go away?

- Simply resetting the code may temporarily clear the warning light, but the underlying problem causing the VTEC system malfunction will persist and should be addressed to prevent further issues.

9. How much does it typically cost to repair the VTEC system malfunction code P1259 in a 1996 Honda Civic?

- The cost of repairs can vary depending on the exact cause of the issue and whether you choose to fix it yourself or take it to a mechanic. Costs can range from a few hundred to over a thousand dollars.

10. Can a VTEC system malfunction code P1259 in a 1996 Honda Civic cause long-term damage if left unrepaired?

- Yes, leaving the issue unresolved can potentially lead to more severe engine problems over time, so it's important to address the VTEC system malfunction promptly.