DTC codes / Ford codes / P1650
P1650 on Ford vehicles means the power steering pressure switch (PSPS) circuit is reporting a voltage outside the range the powertrain control module (PCM) expects during its self-test. The PCM monitors this switch to detect when steering load increases, and it flags the code when the signal stays stuck high, stuck low, or otherwise implausible during the key-on or running self-test.
Guidance is general and written for Ford vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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