P0B66 - OBD Trouble Code
OBD Code P0B66 - Hybrid Battery Voltage Sense "I" Circuit High
The
OBD code P0B66 can be defined as Hybrid Battery Voltage Sense "I"
Circuit High. If the powertrain control module would detect a variation in the
voltage coming from the hybrid battery that is outside the parameters set by
the automobile manufacturer, then it would flash OBD code P0B66 in the system.
This can cause vehicle going into limp mode and check engine light getting
illumination.
Learn More About OBD Error Code P0B66
The Hybrid/Electric Vehicle battery pack contains numerous cells which are welded together in parallel. The battery energy control module monitors the voltage from the various cell groups through the battery interface control modules. The hybrid battery interface control module encodes the voltage reading and transmits it to the battery energy control module through the battery control harness which will determine when a fault condition is present and then the PCM will store the OBD code P0B66 is the system.
What causes this problem with the Hybrid Battery Voltage Sense "I" Circuit High?
- Flaws in the hybrid battery pack
- Hybrid battery pack harness might be opened or shorted
- Hybrid battery pack circuit might have bad electrical connection
Replace/Repair These Parts To Fix Code P0B66
- Car Battery
- There can be some issues with the Car Battery due to which you may see
P0B66 code appearing over and over again. Visit us to buy best quality Car
Battery online.
- Electronic Control
Unit - A lot of issues can arise due to defective
Electronic Control Unit. Did you just see P0B66 code flashing? Now you know the
reason why it is appearing. Get it inspected and replaced on time.
- Body Control Module
Component - Faulty Body Control Module Component can be
the reason why P0B66 code is flashing. Visit us to purchase top notch Body
Control Module Component online.
- Heater Blower
Assembly - It is an important auto part which needs full
care. A faulty Heater Blower Assembly can be a reason behind the flashing up of
P0B66 code.
- Battery Smart Unit
- OBD Code P0B66 can appear because of faulty Battery Smart Unit.
Replace it now with a new one.
- Hybrid Battery
- There can be some issues with the Hybrid Battery due to which you may
see P0B66 code appearing over and over again. Visit us to buy best quality
Hybrid Battery online.
- Engine Control
Module - Are you facing some faults in your Engine
Control Module? Don’t worry and get them replaced or else P0B66 code can turn
up.
- Powertrain Control
Module - Common cause behind this P0B66 error code can be
some fault in Powertrain Control Module. So it will be a good decision to
replace them now.
Symptoms of The OBD Error Code P0B66
After knowing all the cause behind the issues, let’s have a look at few common symptoms of this problem. Read through this section to learn more about this error code.
Common Symptoms
- Increased exhaust temperatures and emissions
- Engine not starting
- Noise coming from under the hood
- Malfunction Indicator Light On
How To Correct Hybrid Battery Voltage Sense "I" Circuit High
Have a look at some ways with which you can correct the P0B66 code:
- Hybrid/EV battery interface control module replacement
- Battery energy control module wiring harness replacement
- Auxiliary battery wiring harness replacement
- Battery energy control module repair or replacement
- Hybrid battery replacement
- HB circuit repairs and wiring checks and replacements
- Repair or replace faulty ECU
If you need parts to fix this issue, you no longer need to search for them. We at Parts Avatar Canada have an extensive range of auto parts in stock from you, ranging from all replacement parts to all Hybrid Battery, Hybrid Battery Pack, Hybrid Battery Voltage Sensor, Oxygen Sensors, Battery Cable, Battery Contactor Assembly, Battery Control Module, Powertrain Control Module, Exhaust Manifold, Exhaust System, Battery Connectors, Battery Cables, Hybrid Battery Interface Control Module Battery Connection parts.
Easy Diagnosis Of Engine Error OBD Code P0B66
Here are some steps which you should follow in order to diagnose this P0B66 fault code:
- As an initial step the mechanic will carefully inspect the vehicle with the help of a scanner.
- After this, the technician will connect a scanner to the diagnostic code so that he can recover all the codes and freeze frame data.
- Note down this information as it can clearly help for further diagnosis.
- After careful inspection, he will reset the code and test drive your vehicle to check for reappearance of the codes.
- He will know that an intermittent condition persist, if the code does not return instantly.
- But if the error code returns quickly, the vehicle is test driven, and then he has to inspect the transmission fluid.
- If any of the component is damaged, the mechanic will replace them quickly.
- Most often, whenever the mechanic carries out any repair work, he will reset the code and test drive your car, to check if the codes return immediately. This can preferably help the mechanic to know what caused this error code in the vehicle.
Common Mistakes When Diagnosing The P0B66 Code
- Some issues related to the battery contactor assembly
- PCM and ECU faults
- Faults in the wiring and harness
- Failure in the battery energy control module