P0562: P0562 Diagnostic Guide

What this code means

P0562 may mean a control module is seeing system voltage lower than expected.

What the vehicle may do

The vehicle may show warning lights or electrical symptoms.
It can have shifting or communication-related complaints depending on when the voltage issue occurs.
The concern may be intermittent if voltage drops only under certain operating conditions.

Possible fault areas

Possible battery condition concerns
Possible charging system concerns
Possible power, ground, wiring, or connector concerns
Possible module power supply concerns

Diagnostic path

Opening context

P0562 may mean a control module is seeing system voltage lower than expected. On this F-150, that can show up as warning lights, communication issues, shifting complaints, or other electrical behavior, depending on when the voltage drops. Broadly, the possible fault areas often include battery condition, charging system performance, power and ground integrity, wiring or connector problems, and module power supply concerns.

Diagnostic boundary

There is not enough confirmed P0562 diagnostic detail to walk a proper low-voltage test path. I would not call a module bad, replace parts, or build a voltage-check sequence from this alone. Pause the diagnosis, start with the basic system checks, follow a structured diagnostic approach, and try to reproduce the operating conditions that set the code. If the earlier diagnostic path is unclear, recheck it and avoid guessing.

If testing has already led to TCM service

If separate testing has already led you to TCM service, the TCM is located on the RH frame rail. Start with the vehicle in NEUTRAL and positioned on a hoist. If you are installing a new component, download the module information to the diagnostic tool using the PMI routine before removal. Then remove the retainers and the TCM shield. Slide the lock tab up and disconnect the TCM electrical connector. Detach the TCM wiring harness retainer and move the harness aside. Remove the nuts and remove the TCM.

TCM installation details

For installation, position the TCM in place and install the nuts. Tighten those TCM nuts to 9 Nm. Connect the TCM electrical connector and slide the lock tab in to lock it. Keep the TCM electrical connector straight while connecting it, because the connector terminals can be damaged. Then attach the TCM wiring harness retainer, install the TCM shield and retainers, restore the module configuration through the PMI process, and use the scan tool to download the solenoid body strategy.

Verification and takeaway

Keep verification separate from the service work. After the actual electrical fault has been found and corrected, verify the repair and confirm the code stays gone. The key takeaway: P0562 should be treated as a voltage-supply diagnosis first, and TCM service information does not replace a proper low-voltage diagnostic path. For more diagnostic training, visit stepdiagnostics.com.