AutoCodes – Honda – P1870 1997 Honda Civic

P1870 1997 Honda Civic Code - Problem in CVT Speed Change Control Valve Assembly Circuit

Quick Answer

P1870 1997 Honda Civic indicates Problem in CVT Speed Change Control Valve Assembly Circuit. Common causes include Faulty CVT Speed Change Control Valve, CVT Speed Change Control Valve harness is open or shorted, CVT Speed Change Control 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: P1870 1997 Honda Civic indicates Problem in CVT Speed Change Control Valve Assembly Circuit.
Common causes: Common causes include Faulty CVT Speed Change Control Valve, CVT Speed Change Control Valve harness is open or shorted, CVT Speed Change Control 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 1,919

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 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1870 1997 Honda Civic Description

OBDII Code P1870 1997 Honda Civic - Problem in CVT Speed Change Control Valve Assembly Circuit - AutoCodes.com — P1870 1997 Honda Civic Code - Problem in CVT Speed Change Control Valve Assembly Circuit

What does this mean?

What are the Possible Causes of the DTC P1870 1997 Honda Civic?

Faulty CVT Speed Change Control Valve
CVT Speed Change Control Valve harness is open or shorted
CVT Speed Change Control Valve circuit poor electrical connection

How to Fix the DTC P1870 1997 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1870 1997 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 P1870 1997 Honda Civic code?

Need more information on how to fix the P1870 1997 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 P1870 1997 Honda Civic Code

1. What are the common symptoms of OBDII code P1870 in a 1997 Honda Civic?

- Common symptoms include erratic shifting, harsh shifting, transmission slipping, and decreased fuel efficiency.

2. What is the primary cause of OBDII code P1870 in a 1997 Honda Civic?

- The primary cause is a problem in the CVT Speed Change Control Valve Assembly Circuit, which can be related to wiring issues, a faulty control valve, or a malfunctioning sensor.

3. How can I diagnose the issue related to OBDII code P1870 in my 1997 Honda Civic?

- Diagnosing the issue typically involves using a scan tool to retrieve the trouble codes, conducting a visual inspection of the CVT Speed Change Control Valve Assembly Circuit components, and testing the circuit for continuity and proper voltage.

4. Can I continue driving my 1997 Honda Civic with OBDII code P1870?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the transmission and other components. It is best to address the issue promptly.

5. How can I repair OBDII code P1870 in my 1997 Honda Civic?

- Repairing this code often involves inspecting and repairing any damaged wiring, replacing the CVT Speed Change Control Valve Assembly, or addressing any sensor malfunctions. It is advisable to consult a professional mechanic for an accurate diagnosis and repair.

6. Are there any DIY tips for troubleshooting OBDII code P1870 in a 1997 Honda Civic?

- While some basic troubleshooting steps can be performed by DIY enthusiasts, it is recommended to seek professional help for diagnosing and repairing this complex issue to ensure proper resolution and prevent further damage to the vehicle.

7. How much does it typically cost to repair OBDII code P1870 in a 1997 Honda Civic?

- The cost of repairing this code can vary depending on the extent of the issue, the parts needed for replacement, and the labor charges. It is advisable to get estimates from reputable repair shops to determine the exact cost.

8. Will resetting the OBDII code P1870 in my 1997 Honda Civic make it go away permanently?

- Resetting the code may temporarily turn off the check engine light, but the underlying issue causing the code will still remain. It is crucial to diagnose and repair the problem to prevent it from recurring.

9. Can a faulty speed sensor cause OBDII code P1870 in a 1997 Honda Civic?

- Yes, a faulty speed sensor can contribute to the occurrence of this code, as it can affect the proper functioning of the CVT Speed Change Control Valve Assembly Circuit.

10. Is it possible for OBDII code P1870 to reoccur after it has been repaired in a 1997 Honda Civic?

- If the root cause of the code is not properly addressed during the repair process, there is a possibility that the code may reoccur. It is important to ensure a thorough diagnosis and repair to prevent this from happening.