P186F
High Side 3 System Voltage Low Range Out
P186F is an OBD-II diagnostic trouble code meaning: High Side 3 System Voltage Low Range Out. Common causes: power supply problems with the transmission control module, open or short circuit in high side 3 circuit. Estimated repair cost: $17–89.
Symptoms
- Incorrect gear shifting
- Check Engine Light Illuminates
- Transmission transition to emergency mode
- Reduced engine power
- Jerks when shifting gears
Causes
- Power supply problems with the transmission control module
- Open or short circuit in High Side 3 circuit
- Corrosion of contacts or connectors
- Solenoid valve malfunction
- Wiring Harness Problems
How to Fix
- Check voltage on High Side 3 circuit
- Inspect connectors and wiring harness for damage
- Check the condition of the solenoid valves
- Test the transmission control module
- Replace damaged components
Related codes
FAQ
What does the P186F code mean?
P186F is an OBD-II diagnostic trouble code that indicates: High Side 3 System Voltage Low Range Out
What causes a P186F error code?
The most common causes of P186F include: Power supply problems with the transmission control module; Open or short circuit in High Side 3 circuit; Corrosion of contacts or connectors; Solenoid valve malfunction.
How do I fix a P186F diagnostic trouble code?
To fix P186F: Check voltage on High Side 3 circuit. Inspect connectors and wiring harness for damage. Check the condition of the solenoid valves. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P186F?
Yes, but get it checked soon
How much does it cost to fix P186F?
The estimated repair cost for P186F is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat