P2792 OBD Error Code: Problem & Solutions

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The trouble code P2792 can be explicated as Gate Select Direction Circuit High. This trouble code is generic, which would mean that it can apply to all the vehicles which are equipped with the OBD-II or the vehicles which are made since 1996 up to the present. The specifications on the definition, the troubleshooting steps as well as repairs can always vary from one vehicle to another. This can happen because of a lot of reasons and the mechanic should diagnose the specific cause for this code.

It is the transmission control module which would examine the gate select direction circuit signal. This trouble code would be set by the TCM when the gate select direction circuit signal would not be as per the parameters set by the manufacturer.

What causes this problem with the Gate Select Direction Circuit High?

• Imperfect range sensor
• Defective transmission shifter
• Issue of unbolted transmission shifter harness
• Powertrain control module (PCM) might not be functioning properly
• Shift lever assembly might be damaged

1. Engine Control Module - The solenoid might cause a short in the engine control module because of corrosion in the solenoid or the wire running from the solenoid to the ECM harness.
2. Automatic Transmission Module - Faulty transmission module can cause problematic down shifts and upshifts, leading to stalling while accelerating or slowing down. This can also hamper many transmission system parts. Thus, replace it now!
3. Electronic Control Unit - The ECU power management control module keeps in check the hybrid battery charging functions. If the ECU is faulty, the battery pack will not be able to properly get charged and thus, the ECU might need replacement.
4. Manual Transmission Shifter - If your manual transmission shifter is broken, then you will be able to move the shifter into any position, but keep in mind that the car transmission would stay in the exact same gear. Get it checked and replace if needed.
5. Powertrain Control Module - A trouble with the PCM would mean that it is unable to determine the right fuel mixture and would send the car engine either more or less fuel than it requires. Now when the engine gets more, the carbon emission would increase and fuel economy would drop. In case of the opposite, the engine will choke, stutter, and might start stalling sometimes.
6. Diagnostic Tool - Usually any OBD code problem requires deep insight into the problem and high-grade tools in order to fix it properly. Thus, buy quality diagnostic tools form us!

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 P2792 here:

Common Symptoms

• Illumination in the service engine soon light

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 P2792:

• Make sure to mend the faulty shift lever assembly
• Repair or replace the corroded areas that may be affecting the gear shift
• Rehabilitate the defaults in the transmission shifter
• Carefully adjust the faults in the range sensor
• You must fix the defective powertrain control module
• Recondition the non-functioning transmission shifter harness

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

• The mechanic will carefully inspect the automobile with the help of a scanner. The gate selection direction sensor is utilized to decide (for the PCM) which gear the transmission is placed in at any given interval, as well as acting as a neutral safety switch for engine ignition. Keep in mind that many gate selection direction sensors are of a variable resistance variety. The switch is situated in or near the transmission shifter assembly. Now when the shift lever would be moved (via the shift lever in the cockpit and the shifter cable) the gate selection direction sensor pivot is moved to various contacts.
• The varying levels of voltage are read by the powertrain control module, regulated by the differing levels of resistance in the switch contacts, as the gears in which the transmission shifter are placed. The PCM would then decide the shift strategy, fuel delivery theory, engine ignition timing, and other drivability functions accordingly. As transmission, ABS, and engine inputs are received by the powertrain control module, it decides whether or not the transmission is in the correct gear for the driving conditions and reacts accordingly. You must start your diagnosis with a visual inspection of system wiring, connectors, and constituents. Make sure to repair or replace any open, shorted, damaged, or corroded items as per the requirement and then the entire system should be retested to make sure that repairs were successful.
• If the system wiring, connectors, and components appear to be in good working order, then you should connect the scanner to the diagnostic connector and record all stored trouble codes as well as the freeze frame data. This information can prove to be extremely helpful in diagnosing intermittent conditions that may have contributed to this code being stored. Now once all the codes have been cleared, then you should operate the vehicle to see if the code returns. If the code fails to immediately return, then you might have an intermittent condition. Intermittent conditions can prove to be quite challenging to diagnose and in extreme cases it should be allowed to worsen before a right diagnosis can be made. If the code returns back immediately, then you should check for battery voltage and ground signals at the gate selection direction sensor.
• If either the ground or battery voltage circuits are open, then utilize the digital volt/ohmmeter to check for continuity (disconnect all related control modules from the circuit before inspecting circuit resistance or controller damage may occur) and resistance in both circuits. Repair or restore system circuits/connectors as per the requirement and retest the system to ensure that repairs were successful.
• Use the manufacturer’s wiring diagram for the gate selection direction sensor, check all associated circuits and the sensor for resistance and continuity and compare your findings with specifications set by the manufacturer. Repair or replace system circuitry, connectors, and/or components that fail to coincide with specifications set by the manufacturer. The system should be retested to ensure a successful repair. If all circuits coincide with manufacturer’s specifications, suspect a faulty powertrain control module. Just remember that PCM failure is rare and replacement would need reprogramming.

Common Mistakes When Diagnosing The P2792 Code

• Powertrain control module related issues
• Quirks in the shift lever assembly
• Issues related with the car wiring