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P0920

P0920: 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 P0920 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. Clear the code and monitor the transmission's behavior. If the issue persists, replace the TCM. 2. Check and repair any wiring issues. 3. Inspect and replace any faulty internal transmission components.

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❓ Common Questions About P0920

Can I drive with code P0920?

No, it is not recommended. Seeing code P0920 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 P0920?

The estimated repair cost for code P0920 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.