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P0746

P0746: Transmission Control System Malfunction

Fix Cost
$200 - $800
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Powertrain
System

📖 What Does P0746 Mean?

The transmission control system has malfunctioned, causing issues with gear shifting and transmission operation.
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Symptoms

  • Difficulty shifting gears
  • slipping transmission
  • hesitation when accelerating
  • or a check engine light.
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Common Causes

  • Faulty transmission control module
  • faulty solenoid
  • faulty transmission sensor
  • or a wiring issue.
Fix Guide
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Possible Solutions

1. Check and clear any trouble codes. 2. Inspect and clean the transmission sensor and solenoid. 3. Replace the faulty transmission control module or solenoid if necessary. 4. Check and repair any wiring issues.

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Common Questions About P0746

Q

Can I drive with code P0746?

A

You can drive for a short time, but should address code P0746 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix P0746?

A

The estimated repair cost for code P0746 is between $200 and $800. 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 P0746 can be tricky. Don't risk it if you're unsure.

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Related Diagnostic Codes

Other codes that may appear with P0746

💡 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