P215B OBD Error Code: Problem & Solutions

Want to learn something more about the P215B fault code? The vehicle output speed sensor is generally known as vehicle speed sensor (VSS). The speed of the vehicle is monitored by the powertrain control module using input data from the VSS, and the anti lock brake control module (ABCM) or electronic brake control module (EBCM) would monitor the input data from one (or more) wheel speed sensors. Most of the OBD-II equipped vehicles use a four-wheel antilock brake system (ABS), but still there are some automobiles which have rear-wheel only ABS.

What causes this problem with the Vehicle Speed - Output Shaft Speed Correlation?

• The final drive gear ratio might not be correct
• Intemperate metallic debris on vehicle (output)/output shaft speed sensor magnet
• Some issues related to the vehicle output shaft speed sensor
• There might be transmission slippage
• Defective wiring or connectors
• The reluctor ring teeth might be faulty or worn out
• Quirks in the PCM or PCM programming error

1. Engine Wiring Harness - Is your car battery losing charge very quickly as well as frequently? Then it is an indication that your car engine wiring harness has some major issues. Get it inspected and replaced as soon as possible.
2. Engine Control Module - Most of the time it is difficult to intercept the ECM faults and thus must be checked for thoroughly. There can be a problem with the circuit or the software might have malfunctioned. Thus repair, replace or reprogram the component as per requirement.
3. Speed Sensor - If the speed signal from the sensors would not be valid, then the PCM won’t be able to rightly control the shifting of the gears within the transmission. Due to this the transmission would shift roughly and sometimes more quickly than normal. Get it replaced before the situation gets worse.
4. Powertrain Control Module - If the PCM is faulty, it can stores wrong OBD codes and can lead to misdiagnosis. This can happen due to misinterpretation of data received from the various sensors and components which also affects the vehicle’s performance. Thus replace it immediately.
5. Electronic Control Unit – If the ECU is at fault, it will not be able to read the boost converter temperatures correctly leading to underperformance. Thus, replace faulty ECU now!
6. Diagnostic Tool - Choose from our diagnostic tools collection that will come handy to detect and correct the OBD error code.

You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.

Common Symptoms

• Inconsistent speedometer
• Unintended ABS or traction control system (TCS) activation
• The transmission shift patterns might be irregular
• Some ABS codes may also be stored
• The ABS might be disabled

The repairs which you will have to do to correct this fault code are simply straightforward; you can surely pinpoint the necessary repairs on the basis of your diagnosis. Have a look at some common fixes:

• Rehabilitate the defaults in the transmission
• Carefully adjust the faults in the drive gear ratio
• Recondition the non-functioning ECM/PCM
• Make sure to mend the faulty output shaft speed sensor
• It is essential to restore the flawed wiring or connectors
• Repair or replace the quirky output shaft speed sensor magnet
• It is necessary to perform proper service of the unsound reluctor ring

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

• The mechanic or the technician will use a diagnostic scanner or code reader like DVOM to visually scan for the error codes in the vehicle.
• After performing a careful inspection, every of the stored codes and freeze frame data are retrieved as it can help down the way for further diagnosis process.
• Most often he has to inspect the solenoid itself to see if they are faulty or damaged. Additional error codes that are stored in the vehicle are also addressed.
• The mechanic performs a continuity test between the PCM and solenoid to check the resistance.
• If the solenoid or the control modules are not faulty, he will then retune the code and test drive the vehicle.
• On test driving, if the P215B code does not return soon, he will know that an erratic condition exits.
• But if the error returns instantaneously, he will check every components of the control module as well as the circuit like connectors, wires, harness, fuses etc for any possible fault.
• If any component is damaged, he will fix them right away.
• After performing this repair, he will inspect the output shaft speed as well.
• If there are some faults in the output shaft speed, then it needs to be replaced.
• Every time a repair work is carried out, make sure that the mechanic test drives the vehicle after every repair so that the diagnosis is successful. This can eventually help him to know as to where the error occurred.

Common Mistakes When Diagnosing The P215B Code

• It is very important to abide by the protocol of the OBD-II diagnosis. Make sure that you follow the protocol step by step so that the repair process is speedy and at the same time effective.
• Mistake of replacing the correct part can be made if this protocol is not followed in the right manner. There might be just a requirement of repairing a part which is faulty.

P215A - Vehicle Speed - Wheel Speed Correlation