P07BD - OBD Trouble Code

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Usually with this kind of problem, the direct impact can be seen on the engine performance. Affected fuel consumption, engine stalling and non-responsive during acceleration are the first signs along with Malfunction Indicator Light illumination. OBD Code P07BD directly points out to the problem with the transmission system and thus needs immediate treatment.

The trouble code P07BD can be described as Transmission Park Position Sensor/Switch "B" Circuit Intermittent/Erratic. This code is a powertrain diagnostic trouble code. It would apply to the OBD-II vehicles which have a transmission park position switch/sensor. They include but at the same time are not restricted to the automobiles from Dodge, Ford, Toyota, Land Rover, VW, Chevrolet, etc.

It is important to understand that under this error there can be many complications in place affecting the drivability. The transmission might stay or might not go into the park due to park position sensor being defective. The transmission park position sensor/switch "B" circuit monitors the status of the transmission and helps in gear shifts. This circuit sends a signal to the powertrain control module when the transmission is placed into the park position. In accordance to a specific vehicle, 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 Intermittent/Erratic?

• Failed transmission park position sensor/switch
• Corroded or damaged connector
• Damaged or faulty wiring in relation to sensor or switch
• Defective PCM/TCM

1. Transmission Park Position Sensor - This sensor is really important when it comes to the functioning of automatic transmission system. Thus, it is important to check for the faults in the sensor and must be replaced, if required.
2. Transmission Park Position Switch - Vehicle might also not engage into or out of park, if the switch is damaged. Replace faulty park position switch now!
3. Transmission Park Position Sensor/Switch Harness - If the harness is faulty, it will require immediate replacement. Buy new harness now!
4. Transmission Park Position Sensor Connector - Sensor connector, if damaged will cause the components to not work properly and affect the sensor functionality. Buy new sensor connector now!
5. Powertrain Control Module - Replace faulty PCM components and reprograms the PCM as it can also be the reason for storing the OBD code wrongly due to system problems. Buy quality parts from us.
6. Diagnostic Tool - Use factory grade diagnostic tools to detect and diagnose the problem properly. Explore from wide variety of tools and equipment form us. Buy today!

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P07BD code by mentioning some major symptoms below:

Common Symptoms

• Transmission may not transfer out of park
• Starter might be captive with the vehicle in gear
• Check Engine Light illumination
• Transmission not moving into park
• Engine not starting and stalling

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 P07BD:

• Faulty powertrain control module replacement
• Defective camshaft sensor replacement
• Repair or replace failed spark plug wires and/or coils
• Repair vacuum leakages
• Distributor cap and rotor button, as well as wires, coils, and plugs replacement
• Clearing clogged throttle position sensor
• Replace or repair the leaking head gaskets
• Repair or replace the faulty crankshaft sensor

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• It is essential to carefully pinpoint all of the components associated with the transmission park position sensor/switch "B" circuit. This will include the transmission park position sensor/switch, wiring, connectors and the PCM on a simplex system.
• It all depends upon the specific year, make and model of the vehicle this circuit may incorporate more components. After these components are located, a thorough visual inspection should be conducted to check all of the associated wiring and connectors for obvious defects such as scraping, rubbing, bare wires or burn spots.
• The connectors should also be checked for corrosion build up or damaged pins. The advanced steps become very vehicle specific and require the appropriate advanced equipment to perform accurately. These procedures require a digital multimeter and the specific technical references for the vehicle. Voltage requirements will vary depending upon the specific year, make and model of the vehicle.
• Technical data should be referenced to obtain the correct voltage range for the transmission park position sensor/switch and the appropriate troubleshooting sequence to follow.
• The correct voltage input to a sensor/switch with no voltage output generally indicates internal failure. If the absence of a power source or ground is identified, 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 P07BD Code

• Faulty wiring and connector issue
• Powertrain control module failure
• Failed transmission park position sensor