P0B46 OBD Error Code: Problem & Solutions

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 P0B46 is the system.

What causes this problem with the Hybrid Battery Voltage Sense "C" Circuit Range/Performance?

• Flaws in the hybrid battery pack
• Hybrid battery pack harness might be opened or shorted
• Hybrid battery pack circuit might have bad electrical connection

1. Car Battery - There can be some issues with the Car Battery due to which you may see P0B46 code appearing over and over again. Visit us to buy best quality Car Battery online.
2. Electronic Control Unit - A lot of issues can arise do to defective Electronic Control Unit. Did you just see P0B46 code flashing? Now you know the reason why it is appearing. Get it inspected and replaced on time.
3. Body Control Module Component - Faulty Body Control Module Component can be the reason why P0B46 code is flashing. Visit us to purchase top notch Body Control Module Component online.
4. 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 P0B46 code.
5. Battery Smart Unit - OBD Code P0B46 can appear because of faulty Battery Smart Unit. Replace it now with a new one.
6. Hybrid Battery - There can be some issues with the Hybrid Battery due to which you may see P0B46 code appearing over and over again. Visit us to buy best quality Hybrid Battery online.
7. Engine Control Module - Are you facing some faults in your Engine Control Module? Don’t worry and get them replaced or else P0B46 code can turn up.
8. Powertrain Control Module - Common cause behind this P0B46 error code can be some fault in Powertrain Control Module. So it will be a good decision to replace them now.

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

Want to correct the Trouble Code P0B46? Read these points mentioned below:

• 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

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It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P0B46 code to be stored:

• 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 P0B46 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