When it comes to Isuzu Code P0973, the diagnosis may be frustrating. This code is usually related to an electrical issue in the 1-2 Shift Solenoid (SS) Control Circuit Low Voltage. If a car’s engine speed is 500 RPM for 5 seconds and the 1-2 SS is commanded ON, then this code is likely to appear. Knowing the causes and solutions for Isuzu Code P0973 can help to alleviate the stress of this diagnosis.
Causes and Solutions for Isuzu Code P0973
| Cause | Solution |
|---|---|
| The TCM detects an open in the 1-2 shift solenoid valve circuit when commanded ON. | Check the 1-2 shift solenoid valve circuit for an open or short to ground. |
| The TCM detects a short to ground in the 1-2 shift solenoid valve circuit when commanded OFF. | Test the 1-2 shift solenoid valve circuit for proper operation. |
| Corrosion or poor connection in the 1-2 shift solenoid valve circuit. | Check the 1-2 shift solenoid valve circuit for corrosion or loose connections. |
| Faulty 1-2 shift solenoid valve. | Replace the 1-2 shift solenoid valve if it is found to be faulty. |
When it comes to diagnosing Isuzu Code P0973, it can be a challenging task. This code is usually related to a 1-2 Shift Solenoid (SS) Control Circuit Low Voltage electrical issue. If the engine speed is 500 RPM for 5 seconds and the 1-2 SS is commanded ON, then this code is likely to appear. Fortunately, there are several causes and solutions available to help diagnose this code. By being aware of these causes and solutions, it can help to make the diagnosis of Isuzu Code P0973 easier.
The TCM Detects an Open in the 1-2 Shift Solenoid Valve Circuit when Commanded ON
When the TCM detects an open in the 1-2 shift solenoid valve circuit when commanded ON, the solution is to check the 1-2 shift solenoid valve circuit for an open or short to ground. This can be done by using a multimeter to test the circuit for continuity. If the circuit is found to be open or short to ground, then it will need to be repaired.
The TCM Detects a Short to Ground in the 1-2 Shift Solenoid Valve Circuit when Commanded OFF
If the TCM detects a short to ground in the 1-2 shift solenoid valve circuit when commanded OFF, the solution is to test the 1-2 shift solenoid valve circuit for proper operation. This can be done by using a multimeter to test the circuit for resistance. If the circuit is found to be short to ground, then it will need to be repaired.
Corrosion or Poor Connection in the 1-2 Shift Solenoid Valve Circuit
In some cases, corrosion or a poor connection in the 1-2 shift solenoid valve circuit can be the cause of Isuzu Code P0973. To address this issue, it is necessary to check the 1-2 shift solenoid valve circuit for corrosion or loose connections. This can be done by using a multimeter to test the circuit for resistance. If corrosion or loose connections are found, then they will need to be repaired.
Faulty 1-2 Shift Solenoid Valve
If the cause of Isuzu Code P0973 is a faulty 1-2 shift solenoid valve, then the solution is to replace the 1-2 shift solenoid valve. This can be done by disconnecting the electrical and vacuum connections to the 1-2 shift solenoid valve and then removing it from the vehicle. Once the new 1-2 shift solenoid valve is installed, it should be tested for proper operation.
Conclusion
Diagnosing Isuzu Code P0973 can be a daunting task, but it is possible to diagnose the code with the right information. Knowing the causes and solutions for Isuzu Code P0973 can help to make the diagnosis easier. By following the solutions listed in this article, it should be possible to address the issue and prevent Isuzu Code P0973 from occurring in the future.
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