P186E
High Side 2 System Voltage Low Range Out
P186E is an OBD-II diagnostic trouble code meaning: High Side 2 System Voltage Low Range Out. Common causes: problems with wiring or contacts in the high side 2 circuit, transmission solenoid valve malfunction. Estimated repair cost: $17–89.
Symptoms
- Incorrect gear shifting
- Switching to emergency mode of the gearbox
- Check Engine Light Illuminates
- Reduced vehicle dynamics
- Possible jerking when changing gears
Causes
- Problems with wiring or contacts in the High Side 2 circuit
- Transmission solenoid valve malfunction
- Wiring harness damage
- Low voltage on-board network
- Transmission control module (TCM) malfunction
How to Fix
- Check the on-board voltage
- Inspect the wiring and connectors in the High Side 2 circuit
- Check the resistance of the solenoid valves
- Scan the TCM for other errors
- If necessary, replace faulty components
Related codes
FAQ
What does the P186E code mean?
P186E is an OBD-II diagnostic trouble code that indicates: High Side 2 System Voltage Low Range Out
What causes a P186E error code?
The most common causes of P186E include: Problems with wiring or contacts in the High Side 2 circuit; Transmission solenoid valve malfunction; Wiring harness damage; Low voltage on-board network.
How do I fix a P186E diagnostic trouble code?
To fix P186E: Check the on-board voltage. Inspect the wiring and connectors in the High Side 2 circuit. Check the resistance of the solenoid valves. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P186E?
Limited driving only, diagnose soon
How much does it cost to fix P186E?
The estimated repair cost for P186E is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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