Power Steering Switch Failure

NAME OF CODE:
Power Steering Switch Failure

WHEN MONITORED:
With the ignition key ON and engine running.

SET CONDITION:
With the vehicle above 40 mph for more than 30 seconds, the power steering pressure switch remains closed.

THEORY OF OPERATION:
The PCM monitors the power steering pressure switch for a high pressure condition. The power steering pressure switch signals the PCM whenever there is a power steering load (pressure exceeding 500 psi). During this condition, the PCM will adjust the rpm to prevent a possible stall. the power steering pressure switch is a normally open switch.

POSSIBLE CAUSES:
- PCM failure
- Connector terminals or wires