← Back to Search Severity: Medium

P0813

P0813: Transmission Control Module (TCM) Internal Fault

Fix Cost
$500 - $1500
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Powertrain
System

📖 What Does P0813 Mean?

The Transmission Control Module (TCM) has detected an internal fault, which may be causing transmission problems or errors.
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Symptoms

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

  • Faulty TCM
  • transmission solenoid malfunction
  • wiring issues
  • or internal transmission damage.
Fix Guide
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Possible Solutions

1. Clear the code and monitor the transmission's behavior. If the problem persists, replace the TCM. 2. Inspect and clean the transmission solenoids. 3. Check and repair any wiring issues. 4. Perform a transmission fluid flush and filter replacement.

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Common Questions About P0813

Q

Can I drive with code P0813?

A

You can drive for a short time, but should address code P0813 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix P0813?

A

The estimated repair cost for code P0813 is between $500 and $1500. This includes parts and labor for most makes and models.

Q

Is this code easy to fix myself?

A

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

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Need a Pro?

Complex codes like P0813 can be tricky. Don't risk it if you're unsure.

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Related Diagnostic Codes

Other codes that may appear with P0813

💡 Why These Codes Are Related:

  • Similar Issues: Same root cause or component failure
  • Related Problems: Often occur together due to system interactions
  • Sequential Codes: Progressive failure stages or multiple sensors
  • Same System: Components within the same automotive system