P0805
P0805: Transmission Control Module (TCM) Range/Performance Problem
📖 What Does P0805 Mean?
Symptoms
- • Transmission hesitation
- • slipping
- • or difficulty shifting gears
- • unusual noises
- • or the check engine light is illuminated.
Common Causes
- • Faulty transmission solenoid
- • faulty transmission pressure sensor
- • faulty transmission temperature sensor
- • faulty transmission control module
- • or a problem with the transmission's hydraulic system.
Possible Solutions
1. Use a scan tool to retrieve live data and monitor the transmission's performance. 2. Check the transmission's hydraulic system for leaks or damage. 3. Replace the faulty transmission solenoid, pressure sensor, or temperature sensor. 4. Update the transmission control module's software. 5. Perform a transmission fluid flush and replace the fluid.
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❓ Common Questions About P0805
Can I drive with code P0805?
You can drive for a short time, but should address code P0805 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix P0805?
The estimated repair cost for code P0805 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 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 P0805
P0803: Transmission Control Module (TCM) Range/Performance Issue
P0804: Transmission Control Module (TCM) Range/Performance Problem
P0806: Transmission Control Module (TCM) Range/Performance Problem
P0807: 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