Feedback

Guide To P07B4 OBD Error Code Solutions

OBD Code P07B4 - Transmission Park Position Sensor/Switch "A" Circuit High

<<See All OBD Codes

The trouble code P07B4 can be explicated as Transmission Park Position Sensor/Switch "A" Circuit High. The main motive of the transmission park position sensor/switch "A" circuit is to detect the overall status of the transmission. ow when the transmission would be placed into the park position, a signal would be sent to the powertrain control module by this circuit. Depending upon a particular vehicle, the circuit is generally a safety feature to prevent the starter from engaging with the automatic transmission in gear.

Learn More About OBD Error Code P07B4

The brighter you are, the more you have to learn! That’s why we are here to provide you more knowledge about the P07B4 trouble code. 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. Their steps for repairing would vary as it all depends upon the year, make, model and powertrain configuration. The fault code P07B4 is one of several possible codes associated to the Transmission Park Position Sensor/Switch "A" Circuit.

 

What causes this problem with the Transmission Park Position Sensor/Switch "A" Circuit High?

 

  • Transmission park position sensor/switch harness might be opened or shorted
  • Some defects in the transmission park position sensor/switch
  • There can be bad electrical connection in the transmission park position sensor/switch circuit

Replace/Repair These Parts To Fix OBD Code P07B4

  1. Engine Coolant Temperature Sensor - OBD Code P07B4 can appear because of faulty Engine Coolant Temperature Sensor.
  2. Air Fuel Ratio Sensor - There can be some issues with the Air Fuel Ratio Sensor due to which you may see P07B4 code appearing over and over again. Visit us to buy best quality Air Fuel Ratio Sensor online.
  3. Manifold Absolute Pressure Sensor - Are you facing some faults in your Manifold Absolute Pressure Sensor? Don’t worry and get them replaced or else P07B4 code can turn up.
  4. Crankshaft Position Sensor - Common cause behind this P07B4 error code can be some fault in Crankshaft Position Sensor. So, it will be a good decision to replace them now.
  5. EGR Valve Gasket - Timing Chain is perfectly fine but still but having that trouble code P07B4 flashing? In such a situation your EGR Valve Gasket might be faulty. Why don’t you think of getting that replaced?
  6. Oxygen Sensor - The P07B4 code can also arise due to some issues in Oxygen Sensor. So, it is advised to replace them as soon as possible.
  7. Idle Air Control Valve - P07B4 code does not really end up spoiling your Oxygen Sensor, but it might also accompany few Idle Air Control Valve issues. We have best Idle Air Control Valve with us.

Symptoms Of OBD Error Code P07B4

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 P07B4 here:

 

Common Symptoms

 

  • Check engine light can start flashing up
  • The transmission may not transfer into park
  • Transmission may not carry out of park
  • Issues to begin the car
  • Starter might be captive with the vehicle in gear
  • The service engine soon light might start appearing

How To Correct P07B4 Transmission Park Position Sensor/Switch "A" Circuit High

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 P07B4:

 

  • Repair or replace the quirky crankshaft sensor
  • Rehabilitate the defaults in the powertrain control module
  • You must fix the defective spark plugs
  • Make sure to mend the faulty catalytic converter
  • Diagnose the then carefully repair the other related trouble codes
  • It is essential to restore the flawed distributor cap and rotor button, as well as wires, coils, and plugs
  • Rehabilitate the defaults in the mass air flow sensor
  • The malfunctioning oxygen sensor should be repaired or replaced as per the need
  • Carefully adjust the faults in the throttle position sensor
  • Make sure to mend the clogged EGR valves and/or tubes
  • The leakage in the vacuum should be repaired
  • Replace or repair the leaking head gaskets
  • It is essential to restore the flawed camshaft sensor
  • You must fix the defective fuel injectors
  • Repair or replace the quirky internal engine components
  • Repair or replace the inoperative spark plug wires and/or coils

Parts Avatar Canada is here to solve all your issues related to car parts. We have stocked a wide range of best priced of Ntk Oxygen Sensor, Denso Oxygen Sensor, Bosch O2 Sensor, Engine Valve, Throttle Valve, Exhaust Sensor and a lot more to help you out in fixing your car.

Easy Diagnosis Of Engine Error OBD Code P07B4

If you want to easily diagnose this trouble code, then you must follow the steps which are mentioned here as below:

 

  • The constituents which are associated with the transmission park position sensor/switch "A" circuit should be located.
  • 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.
  • The requirements of the voltage would differ depending upon the specific vehicle, the transmission park position sensor/switch circuit configuration and the components incorporated.
  • 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 right 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 P07B4 Code

 

  • The wiring might have some flaws
  • Negligence in the powertrain control module
  • Transmission park position sensor might start failing

Other Diagnostic Codes Related To OBD Code P07B4

P07B2 - Transmission Park Position Sensor/Switch "A" Circuit Open

P07B3 - Transmission Park Position Sensor/Switch "A" Circuit Low

P07B5 - Transmission Park Position Sensor/Switch "A" Circuit Performance/Low

P07B6 - Transmission Park Position Sensor/Switch "A" Circuit Performance High

P07B7 - Transmission Park Position Sensor/Switch "A" Circuit Intermittent/Erratic

P07B8 - Transmission Park Position Sensor/Switch "B" Circuit Open

P07B9 - Transmission Park Position Sensor/Switch "B" Circuit Low

P07BA - Transmission Park Position Sensor/Switch "B" Circuit High

P07BB - Transmission Park Position Sensor/Switch "B" Circuit Performance/Low

P07BC - Transmission Park Position Sensor/Switch "B" Circuit Performance High

P07BD - Transmission Park Position Sensor/Switch "B" Circuit Intermittent/Erratic

P07BE - Transmission Park Position Sensor/Switch "A"/"B" Correlation