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P0889

P0889: Transmission Control Module (TCM) Internal Failure

Fix Cost

$500 - $1500

Parts & Labor

Difficulty

4/5

Hard

1-2 hours

DIY Possible?

❌ No

Pro recommended

📖 What Does P0889 Mean?

The Transmission Control Module (TCM) has detected an internal failure, which may be caused by a faulty TCM, wiring issue, or other internal component failure.

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Symptoms

• Transmission slipping
• hesitation
• or failure to engage gears
• loss of power
• or check engine light illumination

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Common Causes

• Faulty TCM
• wiring issue
• internal component failure
• or software glitch

Fix Guide

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Possible Solutions

1. Clear the code and monitor the vehicle to see if the issue reoccurs. 2. Check for any loose or damaged wiring and repair or replace as necessary. 3. Update the TCM software if necessary. 4. Replace the TCM if all else fails.

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❓ Common Questions About P0889

Can I drive with code P0889?

You can drive for a short time, but should address code P0889 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix P0889?

The estimated repair cost for code P0889 is between $500 and $1500. This includes parts and labor for most makes and models.

Is this code easy to fix myself?

This repair is considered difficult. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.