What this code means
P0562 may indicate that the gear shift module is seeing system voltage lower than it expects.
What the vehicle may do
- The vehicle may show shift-control concerns.
- The concern can be intermittent if voltage or connector contact changes.
- A warning or stored code may be the only symptom in some cases.
Possible fault areas
- A possible battery or charging system concern may be involved.
- A possible fused power feed issue may be involved.
- A possible ground circuit issue may be involved.
- Connector corrosion, loose terminals, pushed-out terminals, or damaged pins can be involved.
- The gear shift module may be involved after the supporting circuits check good.
Diagnostic path
Set up the diagnosis
On this F-150, P0562 is a low system-voltage code set by the gear shift module. In plain terms, the module may not be seeing enough voltage to operate correctly, so the driver may notice a shift-control concern or an intermittent warning. The broad fault areas can include battery or charging system condition, the fused power feed from the BCM, the GSM ground, connector or terminal problems, and, after the circuit checks are proven good, the GSM itself. The GSM normally requires an operating voltage between 9 and 16 volts, and this code indicates the voltage supplied to the GSM fell below 9 volts.
Start with the basic checks
Start by verifying the customer concern. Operate the vehicle and try to duplicate the condition before going deeper. Then do a visual inspection for obvious mechanical or electrical damage. If you find an obvious cause that matches the concern, correct it if possible before continuing. If nothing is visually evident, retrieve the GSM codes and use the code result to choose the pinpoint path for P0562. If there are no codes present, stay with symptom-based diagnosis instead of forcing a code path.
Check whether the low-voltage issue is vehicle-wide
For P0562, the first diagnostic move is to look beyond the gear shift module. Use the scan tool to retrieve continuous memory codes from all modules. If other modules also show low-voltage type faults, treat this as a vehicle charging concern first and diagnose the charging system before chasing the GSM circuit. If the low-voltage concern is not showing up in other modules, continue to the battery condition check.
Check battery condition
Next, check the battery condition and state of charge by carrying out the battery condition test. If the battery passes, move on and recheck the GSM. If the battery does not pass, install a new battery before continuing with this diagnostic path.
Clear and retest the GSM
Now clear all GSM codes with the scan tool. Turn the ignition off, then turn the ignition on, wait 10 seconds, and run the GSM self-test. If P0562 returns, continue into the power and ground checks. If P0562 does not return, the system is operating correctly at this time, and the code may have been caused by a previous low battery voltage condition.
Check the GSM power feed
With the ignition off, disconnect GSM connector C2503 and inspect it for damaged or pushed-out terminals. Then turn the ignition on and measure from C2503 Pin 1 to ground. You are looking for voltage greater than 11 volts. If it is greater than 11 volts, continue to the ground circuit check. If it is not, verify BCM fuse F7 is OK. If the fuse is OK, identify and repair the open circuit. If the fuse is not OK, identify and repair the short to ground.
Check the GSM ground
Next, with the ignition off, measure from C2503 Pin 16 to ground. The resistance should be less than 3 ohms. If it is less than 3 ohms, continue to the connector and module operation check. If it is not, verify ground G201 is clean and properly fastened. If that ground point is OK, repair the open circuit.
Check connector condition and GSM operation
For the final GSM operation check, turn the ignition off, disconnect the GSM connector, and inspect it closely. Repair corrosion by installing a new connector or terminals and cleaning the module pins. Repair damaged or bent pins by installing new terminals or pins. Repair pushed-out pins by installing new pins as needed. Reconnect the GSM connector and make sure it seats and latches correctly, then operate the system and see whether the concern is still present.
Final decision and repair verification
If the concern is still present after those checks, look for an applicable TSB, GSB, SSM, or FSA. If one applies to this concern, stop this test and follow that bulletin path. If none apply, install a new GSM. If the concern is not still present, the system is operating correctly at this time, and the issue may have been caused by a loose or corroded connector. Make sure the root cause of any connector or pin problem is addressed. After the repair, verify the repair and confirm the code stays gone. The takeaway is simple: prove the battery and charging side first, then prove GSM power, ground, and connector integrity before condemning the module. For more diagnostic training, visit stepdiagnostics.com.
Final check
This code is often approached by checking whether the low-voltage concern is vehicle-wide, then narrowing the diagnosis to the module power feed, ground, connector condition, and possible module fault
For more guided automotive diagnostics, visit STEP Diagnostics.
