AutoCodes – Generic – P0898

P0898 Code - Transmission Control System MIL Request Circuit Low

Quick Answer

The Transmission Control Module (TCM) requests the Engine Control Module (ECM) to set the Malfunction Indicator Light (MIL). Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) 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: P0898 indicates Transmission Control System MIL Request Circuit Low.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) 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 8,380

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 May 11, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0898 Description

The Transmission Control Module (TCM) requests the Engine Control Module (ECM) to set the Malfunction Indicator Light (MIL). The ECM sets the OBDII code when the there is a problem communicating to the TCM through the MIL request circuit.

OBDII Code P0898 - Transmission Control System MIL Request Circuit Low - AutoCodes.com — P0898 Code - Transmission Control System MIL Request Circuit Low

What does this mean?

What are the Possible Causes of the DTC P0898?

Faulty Transmission Control Module (TCM)
Transmission Control Module (TCM) harness is open or shorted
Transmission Control Module (TCM) circuit poor electrical connection

How to Fix the DTC P0898?

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 P0898 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 P0898 code?

Need more information on how to fix the P0898 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0898 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P0898 Dodge — Transmission Control System MIL Request Circuit Low

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 P0898 Code

1. What are common symptoms of OBDII code P0898?

The common symptoms of OBDII code P0898 include the illumination of the Check Engine Light (MIL) on the dashboard and possible transmission shifting issues.

2. What does OBDII code P0898 indicate?

OBDII code P0898 indicates a problem with the Transmission Control System MIL Request Circuit being detected as low.

3. What are possible causes of OBDII code P0898?

Possible causes of OBDII code P0898 include a faulty transmission control module (TCM), damaged wiring or connectors in the MIL circuit, or a malfunctioning MIL control circuit.

4. How can I diagnose the cause of OBDII code P0898?

Diagnosing OBDII code P0898 typically involves using a scan tool to read the code, checking the transmission control module for any faults, inspecting the wiring and connectors in the MIL circuit, and performing a thorough visual inspection.

5. Can OBDII code P0898 be repaired at home?

Repairing OBDII code P0898 may require advanced diagnostic tools and expertise, so it is recommended to seek professional help to accurately diagnose and fix the issue.

6. Is it safe to continue driving with OBDII code P0898?

It is not recommended to continue driving with OBDII code P0898 as it can lead to potential transmission problems and further damage if left unresolved.

7. How much does it typically cost to repair OBDII code P0898?

The cost of repairing OBDII code P0898 can vary depending on the underlying cause of the issue, but it may involve replacing the transmission control module or repairing damaged wiring, which can range from a few hundred to over a thousand dollars.

8. Can a low car battery cause OBDII code P0898 to trigger?

A low car battery can potentially cause OBDII code P0898 to trigger if it affects the power supply to the transmission control module or the MIL circuit. It is advisable to ensure the car battery is in good condition as part of the diagnostic process.

9. How long does it typically take to repair OBDII code P0898?

The time taken to repair OBDII code P0898 can vary based on the specific cause of the issue and the availability of replacement parts. It may take a few hours to a day for a professional technician to diagnose and fix the problem.

10. Can resetting the OBDII system clear OBDII code P0898?

Resetting the OBDII system may temporarily clear OBDII code P0898, but if the underlying issue is not addressed, the code is likely to reappear once the problem is detected again during the vehicle's self-diagnostic process.