P186B Code - High Side 3 System Open Circuit
Quick Answer
The Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU) monitors the system and the supply current to the high side 3 is determined to be open. Common causes include Faulty Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU), TC-SST-ECU harness is open or shorted, TC-SST-ECU circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P186B indicates High Side 3 System Open Circuit.
- Common causes
- Common causes include Faulty Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU), TC-SST-ECU harness is open or shorted, TC-SST-ECU circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P186B Description
What are the Possible Causes of the DTC P186B?
- Faulty Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU)
- TC-SST-ECU harness is open or shorted
- TC-SST-ECU circuit poor electrical connection
How to Fix the DTC P186B?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P186B code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P186B Mitsubishi — High Side 3 System Open Circuit
Frequently Asked Questions about P186B Code
1. What are the common symptoms of OBDII code P186B (High Side 3 System Open Circuit)?
- Common symptoms include rough engine performance, reduced power, and illuminated Check Engine light.
2. What can cause the OBDII code P186B to trigger?
- The code P186B is typically triggered by an open circuit in the high side 3 system of the vehicle.
3. How serious is the OBDII code P186B (High Side 3 System Open Circuit)?
- While the vehicle may still be operable with this code, it is important to address it promptly to prevent potential damage to the engine or emissions system.
4. How can I diagnose the cause of OBDII code P186B?
- Diagnosing the cause of P186B may require a thorough inspection of the wiring, connectors, and components related to the high side 3 system using a diagnostic scanner.
5. Can a loose gas cap trigger the OBDII code P186B?
- No, the code P186B is specifically related to an open circuit in the high side 3 system and is not caused by a loose gas cap.
6. What are some common repair tips for resolving OBDII code P186B?
- Repair tips may include checking and repairing any damaged wiring, replacing faulty connectors, or addressing issues with the high side 3 sensor or related components.
7. Is it safe to continue driving with the OBDII code P186B present?
- While the vehicle may still be driven in most cases, it is recommended to have the issue diagnosed and repaired as soon as possible to prevent further complications.
8. Can I reset the Check Engine light after fixing the issue causing OBDII code P186B?
- Yes, once the underlying issue causing the code P186B is resolved, the Check Engine light can be reset using a diagnostic scanner or by disconnecting the vehicle's battery for a short period.
9. Are there any common vehicles known to experience OBDII code P186B frequently?
- The code P186B can occur in various vehicle makes and models, particularly those equipped with OBDII systems.
10. How much does it typically cost to repair OBDII code P186B at a mechanic or dealership?
- The cost of repairing OBDII code P186B can vary depending on the underlying cause, but it may range from $100 to $500 or more, including parts and labor.
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