AutoCodes – Honda – P1890 1996 Honda Civic

P1890 1996 Honda Civic Code - Shift Control System

Quick Answer

The P1890 Honda code refers to a shift control system malfunction in the vehicle. Common causes include Faulty Transmission Valve Body, Transmission Valve Body harness is open or shorted, Transmission Valve Body 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: P1890 1996 Honda Civic indicates Shift Control System.
Common causes: Common causes include Faulty Transmission Valve Body, Transmission Valve Body harness is open or shorted, Transmission Valve Body 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 3,323

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 Oct 02, 2025

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1890 1996 Honda Civic Description

The P1890 Honda code refers to a shift control system malfunction in the vehicle. This code is specifically related to the transmission system and indicates that there is an issue with the shift control mechanism. The shift control system is responsible for managing the shifting of gears in the transmission, ensuring smooth and accurate transitions between gears while driving. When this system malfunctions, it can lead to various performance issues and potentially cause long-term damage if not addressed promptly.

OBDII Code P1890 1996 Honda Civic - Shift Control System - AutoCodes.com — P1890 1996 Honda Civic Code - Shift Control System

What does this mean?

What are the Possible Causes of the DTC P1890 1996 Honda Civic?

Faulty Transmission Valve Body
Transmission Valve Body harness is open or shorted
Transmission Valve Body circuit poor electrical connection
Transmission mechanical problems

How to Fix the DTC P1890 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1890 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 P1890 1996 Honda Civic code?

Need more information on how to fix the P1890 1996 Honda Civic code? Get Access to Factory Service Manuals

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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 P1890 1996 Honda Civic Code

1. What does OBDII code P1890 on a 1996 Honda Civic indicate?

- OBDII code P1890 on a 1996 Honda Civic relates to the Shift Control System.

2. What are the common symptoms of OBDII code P1890 on a 1996 Honda Civic?

- Common symptoms of code P1890 may include harsh shifting, erratic shifting behavior, or transmission slippage.

3. What are the possible causes of OBDII code P1890 on a 1996 Honda Civic?

- Possible causes of code P1890 can be a faulty shift solenoid, issues with the transmission control module, or low transmission fluid levels.

4. How can I diagnose the Shift Control System issues causing OBDII code P1890 on my 1996 Honda Civic?

- Diagnosing code P1890 may involve checking the transmission fluid level, inspecting the shift solenoids, and scanning the transmission control module for error codes.

5. Can driving with OBDII code P1890 on a 1996 Honda Civic cause further damage?

- Continuing to drive with code P1890 may lead to increased transmission wear and potential damage if the underlying issue is not addressed promptly.

6. Is it safe to ignore OBDII code P1890 on a 1996 Honda Civic?

- Ignoring code P1890 can result in poor transmission performance, decreased fuel efficiency, and possible transmission failure, so it is not recommended to ignore this code.

7. How can I repair OBDII code P1890 on my 1996 Honda Civic?

- Repairing code P1890 may involve replacing a faulty shift solenoid, addressing transmission control module issues, or fixing any transmission fluid leaks.

8. Can I reset OBDII code P1890 on a 1996 Honda Civic by clearing the trouble codes?

- Clearing the trouble codes may temporarily turn off the check engine light, but the underlying issue causing code P1890 will need to be fixed to prevent the code from returning.

9. Are there any DIY tips for addressing OBDII code P1890 on a 1996 Honda Civic?

- DIY tips for code P1890 may include checking and topping up transmission fluid, inspecting electrical connections, and ensuring proper transmission fluid level and quality.

10. How can a mechanic help with diagnosing and repairing OBDII code P1890 on a 1996 Honda Civic?

- A mechanic can use specialized tools to diagnose the Shift Control System, perform detailed inspections, and make accurate repairs to resolve code P1890 effectively.