PCM CODE P040 - OPEN PSPS CIRCUIT
This code test monitors power steering pressure switch. When a load is placed on power steering, such as full lock, switch opens. PCM Code P040 sets when vehicle speed is greater than 45 MPH and pressure switch is open.
Engine running. Vehicle speed greater than or equal to 45 MPH.
Power steering switch open for 15 seconds.
PCM turns on SERVICE ENGINE SOON light.
Manipulate power steering pressure switch connector with engine running. If intermittent is created, code will set. Disconnect and reconnect power steering connector to ensure it is properly latched.
