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P0928

P0928: Transmission Advanced System - Transmission Control Module (TCM) Internal Error

Fix Cost

$500 - $1500

Parts & Labor

Difficulty

4/5

Hard

1-2 hours

DIY Possible?

❌ No

Pro recommended

📖 What Does P0928 Mean?

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

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Symptoms

• Transmission slipping
• hesitation
• or refusal to engage gears
• unusual noises
• or warning lights on the dashboard.

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Common Causes

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

Fix Guide

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Possible Solutions

1. Check for any loose or damaged wiring and repair or replace as needed. 2. Update the TCM software if necessary. 3. Replace the TCM if it's faulty. 4. Inspect and replace any internal transmission components that may be faulty.

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❓ Common Questions About P0928

Can I drive with code P0928?

No, it is not recommended. Seeing code P0928 indicates a serious issue that could damage your engine or transmission if ignored. You should stop driving and have it inspected immediately.

How much does it cost to fix P0928?

The estimated repair cost for code P0928 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.