Error Code P07BA: What It Means & What To Do?

<<See All OBD Codes

Is the Check Engine Light illuminated on the dashboard? Are you experiencing engine stalling and not starting? Are you experiencing difficulty in shifting in and out of the park? All these are major indication towards transmission park position sensor problem, thus causing OBD code P07BA getting stored in the Powertrain Control Module (PCM).

OBD code P07BA is the Transmission Park Position Sensor/Switch "B" Circuit High. This code indicates that the Powertrain Control Module (PCM) has detected a malfunction that is affecting the operation of the transmission park position sensor/switch "B" circuit. The transmission park position sensor/switch "B" circuit monitors the status of the transmission. This circuit sends a signal to the PCM when the transmission is placed into the park position. Usually, this circuit is commonly a safety feature to prevent the starter from engaging with the automatic transmission in gear.

What causes this problem with the Transmission Park Position Sensor/Switch “B” Circuit High?

• Transmission park position sensor/switch defective
• Faulty connectors to the position sensor
• Damaged wiring and connections to the sensor/switch
• Defective Powertrain Control Module

1. Transmission Park Position Sensor - This sensor can be faulty and can cause harsh shift problems and drivability issues. Thus, replace faulty sensor now!
2. Transmission Park Position Switch - Faulty switches can also be a reason for the transmission problem. Buy new switch now!
3. Transmission Park Position Sensor/Switch Harness - Defective wiring harness should be inspected properly and replaced, if required. Buy it from us now!
4. Transmission Park Position Sensor Connector - Faulty connectors will affect the connectivity and the wirings as well. Buy new connector now!
5. Powertrain Control Module - P07BA error code also relates to problems with the PCM. This can cause improper engine and throttle response. Replace faulty PCM now.
6. Diagnostic Tool - Use professional scanning and diagnostic tools to detect the OBD error code. Buy from us now!

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P07BA here:

Common Symptoms

• Check engine light illumination
• Transmission not transferring in or out of park
• Engine stalling and not starting
• Starter captive with the vehicle in gear

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P07BA:

• Repair or replace faulty crankshaft sensor
• Powertrain Control Module repair or reprogramming
• Replacement of defective spark plugs
• Faulty catalytic converter replacement
• Defective mass air flow sensor replacement
• Faulty oxygen sensor repair or replacement
• Adjust the faults in throttle position sensor (TPS)

Parts Avatar Canada is here to solve all your issues related to car parts. We have stocked a wide range of best priced of temperature sensor, carburettor, PCM/ECM, wheel bearing, vacuum pump, thermistor, EGR valve, motion sensors, MAP sensors and a lot more to help you out in fixing your car.

Diagnose trouble code P07BA by following the steps which are mentioned here as below:

• Visually inspect by checking all of the associated wiring and connectors for defects such as scraping, rubbing, bare wires or burn spots. Also check for corrosion build up or damaged pins.
• One will require a digital multimeter and the specific technical references for the vehicle to further diagnose this error code problem.
• Check for the sensor voltage depending upon the specific vehicle, the transmission park position sensor/switch circuit configuration and the components incorporated. This data should be referenced to obtain the correct voltage range for the transmission park position sensor/switch and the appropriate troubleshooting sequence to follow.
• If the voltage input to a sensor/switch is correct with no voltage output, it is an indicative of internal failure.
• If the power source or ground is absent, continuity testing may be needed to check the overall condition of the wiring and connectors.
• Continuity tests are always performed with the power removed from the circuit and the normal readings should be 0 ohms of resistance unless otherwise specified by the technical data.
• Resistance or no continuity indicates defective wiring or connectors that are shorted or open. Make sure that you repair them properly or get the replaced.

Common Mistakes When Diagnosing The P07BA Code

Most of the time we tend to diagnose the problem without completely identifying the real cause of it. It is important to follow all the diagnostic steps and examine each component carefully before correcting. Some of the components to be focused on are listed below;

• Wiring and harness issue
• Powertrain control module faulty
• Transmission park position sensor failing
• Transmission park position sensor connector