B27B8 Code - Electric Compressor Over Loaded
Quick Answer
The Diagnostic Trouble Code (DTC) sets when the high load status at the low speed of the electric compressor is continued. Common causes include Refrigerant Charge, Faulty Electric Compressor, Electric Compressor harness is open or shorted. 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
- B27B8 indicates Electric Compressor Over Loaded.
- Common causes
- Common causes include Refrigerant Charge, Faulty Electric Compressor, Electric Compressor harness is open or shorted.
- 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 B27B8 Description
What are the Possible Causes of the DTC B27B8?
- Refrigerant Charge
- Faulty Electric Compressor
- Electric Compressor harness is open or shorted
- Electric Compressor circuit poor electrical connection
- Faulty Cooling Fan
- Faulty Li-ion Battery
- Faulty Power Delivery Module (PDM)
How to Fix the DTC B27B8?
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 B27B8 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.
Need more information about the B27B8 code?
Need more information on how to fix the B27B8 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B27B8 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B27B8 Infiniti — Electric Compressor Over Loaded
- B27B8 Nissan — Electric Compressor Over Loaded
Frequently Asked Questions about B27B8 Code
1. What are common symptoms of OBDII code B27B8 (Electric Compressor Over Loaded)?
- Common symptoms include the air conditioning system not cooling effectively, unusual noises coming from the compressor, and the AC system shutting off unexpectedly.
2. What causes OBDII code B27B8 to trigger?
- This code is usually triggered when the electric compressor is drawing too much current, indicating an overload condition.
3. How can I diagnose the cause of OBDII code B27B8?
- Diagnosing the issue may involve checking the wiring and connections to the electric compressor, testing the compressor for proper operation, and inspecting the AC system for any other faults.
4. Can a faulty electric compressor cause OBDII code B27B8?
- Yes, a faulty electric compressor that is drawing excessive current can trigger this code.
5. What are some repair tips for resolving OBDII code B27B8?
- Repair tips may include checking and repairing any damaged wiring, replacing a faulty electric compressor, or resetting the AC system to clear the code.
6. Is it safe to continue driving with OBDII code B27B8 present?
- It is not recommended to continue driving with this code present, as it can lead to further damage to the AC system and potentially affect vehicle performance.
7. Can a DIY enthusiast fix OBDII code B27B8 at home?
- While some basic checks and repairs can be performed at home, diagnosing and repairing the specific cause of this code may require professional expertise and specialized tools.
8. How much does it typically cost to repair OBDII code B27B8?
- The cost of repairing this code can vary depending on the cause of the issue, the extent of the damage, and whether any parts need to be replaced. It's advisable to consult with a mechanic for a precise estimate.
9. Will resetting the OBDII system clear code B27B8?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the overload condition is not addressed, the code is likely to reappear.
10. Can a software update fix OBDII code B27B8?
- In some cases, a software update from the manufacturer may address issues related to electric compressor overloading, but it's best to consult with a professional to determine the most appropriate solution.
Discuss the causes and fixes for B27B8 OBDII Code
Code B27B8 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
