P0801
P0801: Transmission Control Module (TCM) Performance Problem
📖 What Does P0801 Mean?
Symptoms
- • Transmission slipping
- • hesitation
- • or failure to engage gears
- • unusual noises
- • or difficulty shifting into gear
Common Causes
- • Faulty transmission solenoid
- • faulty transmission sensor
- • clogged transmission filter
- • low transmission fluid level
- • or a malfunctioning transmission control module
Possible Solutions
1. Check transmission fluid level and condition; 2. Scan for any other trouble codes; 3. Test transmission solenoids and sensors; 4. Replace faulty solenoids or sensors; 5. Clean or replace transmission filter; 6. Update transmission control module software if necessary
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❓ Common Questions About P0801
Can I drive with code P0801?
You can drive for a short time, but should address code P0801 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix P0801?
The estimated repair cost for code P0801 is between $200 and $1000. This includes parts and labor for most makes and models.
Is this code easy to fix myself?
This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.
Required Parts
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View Best Sellers ↗Related Diagnostic Codes
Other codes that may appear with P0801
P0799: Transmission Control System Malfunction
P0800: Transmission Control System Malfunction
P0802: Transmission Control Module (TCM) Range/Performance Problem
P0803: Transmission Control Module (TCM) Range/Performance Issue
💡 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