P0820
P0820: Transmission Control Module (TCM) Range/Performance Problem
📖 What Does P0820 Mean?
Symptoms
- • Transmission slips
- • hesitation
- • or hesitation during acceleration
- • difficulty shifting gears
- • transmission warning light on
Common Causes
- • Faulty transmission solenoid
- • faulty transmission pressure sensor
- • faulty transmission temperature sensor
- • faulty transmission control module
Possible Solutions
1. Check and clear any trouble codes. 2. Inspect and clean the transmission solenoid and sensors. 3. Replace faulty sensors or solenoids. 4. Update the transmission control module software. 5. Check and adjust transmission fluid levels.
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❓ Common Questions About P0820
Can I drive with code P0820?
You can drive for a short time, but should address code P0820 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix P0820?
The estimated repair cost for code P0820 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 P0820
P0818: Transmission Range Sensor Circuit Malfunction
P0819: Transmission Control Module (TCM) Internal Fault
P0821: Transmission Control Module (TCM) Internal Fault
P0822: Transmission Control Module (TCM) Range/Performance Problem
💡 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