AutoCodes – Honda – P1768 1999 Honda Civic

P1768 1999 Honda Civic Code - A/T Clutch Pressure Control Solenoid Valve Circuit

Quick Answer

The A/T clutch pressure control solenoid valve is used for shift control and lock-up control. Common causes include Faulty Clutch Pressure Control Solenoid Valve, Clutch Pressure Control Solenoid Valve harness is open or shorted, Clutch Pressure Control Solenoid Valve circuit poor electrical connection. 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: P1768 1999 Honda Civic indicates A/T Clutch Pressure Control Solenoid Valve Circuit.
Common causes: Common causes include Faulty Clutch Pressure Control Solenoid Valve, Clutch Pressure Control Solenoid Valve harness is open or shorted, Clutch Pressure Control Solenoid Valve circuit poor electrical connection.
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 10,096

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 Sep 16, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1768 1999 Honda Civic Description

The A/T clutch pressure control solenoid valve is used for shift control and lock-up control. A spool in the A/T clutch pressure control solenoid valve pushes a valve according to the duty cycle that is controlled by the Powertrain Control Module (PCM) to pressurize fluid so the hydraulic pressure is proportional to the current. The PCM measures the current flowing through the A/T clutch pressure control solenoid valve and uses feedback control to compensate the difference between the actual current and the commanded one. If the measured current for the PCM output duty cycle is not within a specified range (open or short to ground), a malfunction is detected and the P1768 code is set.

OBDII Code P1768 1999 Honda Civic - A/T Clutch Pressure Control Solenoid Valve Circuit - AutoCodes.com — P1768 1999 Honda Civic Code - A/T Clutch Pressure Control Solenoid Valve Circuit

What does this mean?

What are the Possible Causes of the DTC P1768 1999 Honda Civic?

Faulty Clutch Pressure Control Solenoid Valve
Clutch Pressure Control Solenoid Valve harness is open or shorted
Clutch Pressure Control Solenoid Valve circuit poor electrical connection

How to Fix the DTC P1768 1999 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

The Clutch Pressure Control Solenoid Valve is located inside the transmission.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1768 1999 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 P1768 1999 Honda Civic code?

Need more information on how to fix the P1768 1999 Honda Civic code? Get Access to Factory Service Manuals

Need Help with the 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 P1768 1999 Honda Civic Code

1. What are the common symptoms of OBDII code P1768 in a 1999 Honda Civic?

- Common symptoms include harsh shifting, delayed shifting, transmission slipping, and the transmission going into "limp mode."

2. What causes the OBDII code P1768 in a 1999 Honda Civic?

- The code is usually triggered by a malfunction in the A/T clutch pressure control solenoid valve circuit, often due to wiring issues, a faulty solenoid valve, or a bad connection.

3. How can I diagnose the A/T clutch pressure control solenoid valve circuit issue in my 1999 Honda Civic?

- Use a scan tool to retrieve the OBDII code P1768, inspect the wiring harness for damage, check the solenoid valve for proper operation, and ensure all connections are secure.

4. Can I continue driving my 1999 Honda Civic with the P1768 code present?

- It is not recommended to continue driving with the P1768 code as it can lead to further damage to the transmission. It's best to address the issue promptly.

5. How do I repair the A/T clutch pressure control solenoid valve circuit issue in my 1999 Honda Civic?

- Repair options include repairing or replacing damaged wiring, replacing the faulty solenoid valve, or fixing any poor connections to resolve the P1768 code.

6. Is it possible to reset the OBDII code P1768 in a 1999 Honda Civic without fixing the underlying issue?

- While clearing the code may temporarily turn off the check engine light, the underlying issue causing the code will persist and likely trigger the code again.

7. Are there any preventive measures to avoid the A/T clutch pressure control solenoid valve circuit issue in my 1999 Honda Civic?

- Regular maintenance, such as checking the transmission fluid level and quality, can help prevent issues that may lead to the P1768 code.

8. How much does it typically cost to repair the A/T clutch pressure control solenoid valve circuit issue in a 1999 Honda Civic?

- The cost of repair can vary depending on the extent of the issue and whether you choose to do the repairs yourself or take it to a professional mechanic. Costs can range from $100 to $500 or more.

9. Can a DIY enthusiast with basic automotive knowledge fix the A/T clutch pressure control solenoid valve circuit issue in a 1999 Honda Civic?

- Yes, someone with basic automotive knowledge can attempt to fix the issue by following repair guides specific to the P1768 code and being cautious with electrical components.

10. Will the P1768 code cause permanent damage to the transmission of a 1999 Honda Civic if left unresolved?

- Ignoring the P1768 code can potentially lead to damage to the transmission over time, as the issue affecting the A/T clutch pressure control solenoid valve circuit may worsen without proper attention.