P0B36 OBD Error Code: Problem & Solutions

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Are you experiencing sluggish performance and acceleration? Is there a problem with the engine performance and affected fuel economy? All this with lights keeping stayed on due to high voltage may be due to vehicle battery problems leading to OBD code P0B36 error getting stored in the PCM.

OBD-II Code P0B36 is defined as a High Voltage Service Disconnect Circuit High. The battery cells need to emit the voltages equally and if any cell is emitting the voltage high, the PCM will set the OBD code P0B36 error in the system and it may go into limp mode.

What causes this problem with the High Voltage Service Disconnect Circuit High?

• Voltage Service Disconnect Circuit High faulty
• Open or shorted harness to Voltage Service Disconnect Circuit
• Bad electrical connections to Voltage Service Disconnect Circuit

1. Car Battery - Everything is okay with the ECM and still OBD code P0B36 triggering? Then there must be some defects in Car Battery. Replace them as soon as possible.
2. Engine Control Module - If everything is alright with Battery Circuit, then there is surely some defect in Engine Control Module. Get it replaced before the situation gets worse.
3. Powertrain Control Module - P0B36 code can display due to some issues in the Powertrain Control Module. So it is very important to replace the Powertrain Control Module with us at equitable prices.
4. Hybrid Battery - Do you remember when was the last time you got your car Hybrid Battery checked up? A dirty Hybrid Battery can cause a lot of issues like displaying P0B36 code.
5. Electronic Control Unit - Are there some faults in your Electronic Control Unit? Don’t waste time and get them replaced or else P0B36 code can turn up.
6. Starter Motor – The engine will have problems with starting and will stall with the starter motor doesn’t work properly. Replace faulty motor now!
7. Car Battery & Cables – Damaged, corroded and faulty battery and cables can also be a reason for bad engine performance. Replace it now!
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9. Heated Oxygen Sensor – The inadequate heating of the oxygen sensor immediately make the ECM to go into failsafe mode due to failure of the fuel delivery system, and engine control module. Replace faulty sensors now!
10. Mass Air Flow Sensor – The faulty MAF sensor will result in inefficient fuel delivery system and engine performance. Thus, replace faulty sensor now!
11. Exhaust Gas Temperature Sensor – This sensor, if faulty will wrongly measure the temperature of the air coming out of the combustion chamber and won’t be able to help in managing the air to fuel ratios. Thus, replace immediately, if found faulty.
12. Fuel Pump – An affected fuel pump will hamper the fuel delivery system and thus the engine performance. Replace damaged pumps immediately and always check for leaks.
13. Manifold Absolute Pressure Sensor – Faulty MAP sensor affects the fuel economy, causes rough engine idles and failed emission tests. Thus, replace faulty MAP sensors now!

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P0B36 code by mentioning some major symptoms below:

Common Symptoms

• Prominent increase in the fuel consumption
• Engine stalling and not starting along with loss of power and response
• Visible white or black smoke from the tailpipe
• Over-fuelling over extended period of time causing dilution of engine oil
• Rough idle and hard starting of the engine
• Carbon deposit build up impacting the spark plugs

Have a look at some ways with which you can correct the P0B36 code:

• It is essential to restore the flawed hybrid battery
• Repair or replace the quirky hybrid battery cut off switch circuit
• Carefully adjust the faults in the hybrid battery cut off switch
• The hybrid battery cut off switch harness should be restored to working order
• Recondition the non-functioning car battery
• Oxygen sensor replacement
• MAP sensor replacement
• Fuel pump and fuel filter replacement
• It is necessary to perform proper service of the unsound battery current sensor
• Adjust the flawed hybrid battery cut off switch circuit

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Here are some steps which you should follow in order to diagnose this fault code:

• This is a general type of error code which is diagnosed with the help of a scanner.
• The mechanic will insert a scanner to diagnostic port of the vehicle and recover the codes and freeze frame data.
• If he happens to find any additional error codes, he has to address them as well.
• Once it is done, he has to reset the vehicle, and then test drive to see if the error code appears.
• If the error code does not return, then there can be an erratic condition.
• Then the mechanic has to check the wires, connectors and other electrical components and quickly replace them if he finds them to be damaged or defective.
• Check for the damaged hybrid battery and its components for error. It the mechanic finds the fault in the connectors in relation to the battery, replace it immediately.
• Also check for the particular battery cells emitting high voltages and thus might need battery replacement as well.
• If all the components seems to work perfectly, inspect the PCM for faults and replacement along with reprogramming.

Common Mistakes When Diagnosing The P0B36 Code

• Fuel pump failure
• Fuel filter damaged
• Damaged service disconnect cut off switch
• Service disconnect plug is not properly connected
• Wiring and connector issue