P0861
P0861: Transmission Control Module (TCM) - Pressure Control Solenoid 'A' Circuit Low
📖 What Does P0861 Mean?
Symptoms
- • Transmission slipping
- • hesitation
- • or refusal to engage gears
- • unusual noises
- • or a check engine light.
Common Causes
- • Faulty Pressure Control Solenoid 'A'
- • wiring issue
- • transmission control module failure
- • or a problem with the transmission's hydraulic system.
Possible Solutions
1. Check the wiring harness for damage or corrosion and repair/replace as needed. 2. Test the Pressure Control Solenoid 'A' circuit with a multimeter to ensure proper voltage. 3. Replace the Pressure Control Solenoid 'A' if faulty. 4. Update the transmission control module's software if necessary. 5. Perform a transmission fluid flush and check the fluid level.
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❓ Common Questions About P0861
Can I drive with code P0861?
You can drive for a short time, but should address code P0861 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix P0861?
The estimated repair cost for code P0861 is between $200 and $800. 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.
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View Best Sellers ↗Related Diagnostic Codes
Other codes that may appear with P0861
P0859: Transmission Control Module (TCM) Range/Performance Issue
P0860: Transmission Control Module (TCM) Range/Performance Problem
P0862: Transmission Control Module (TCM) - Low Transmission Fluid Pressure
P0863: Transmission Control Module (TCM) - Low Transmission Fluid Pressure
💡 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