Hi,
As you mentioned, it is a low-voltage issue with the transmission control outputs. With the engine running, the PCM commands the TIPM (totally integrated power module) to energize the Transmission Control Output. Power to the PCM is less than 10.0 volts for a period of 15 seconds. Note: P0562 generally indicates a gradually falling battery voltage or a resistive connection(s) to the PCM.
In most cases, the issue is the result of either the TIPM or a connector issue in the wiring. The TIPM in the vehicle is known to fail as far as connectors. Simply put, there are too many connector pins in the connector. As a result, they are very small and are prone to corrode and break causing this type of issue.
I attached the diagnostics below specific to the code. Do me a favor. Take a look through them and let me know if you are comfortable performing them.
Let me know if you have questions.
Take care,
Joe
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Thursday, November 10th, 2022 AT 9:21 PM