P0551

Tests 1 - 2:

Tests 3 - 5:

SYMPTOM
P0551-POWER STEERING SWITCH FAILURE

WHEN MONITORED
With the ignition key ON and engine running

SET CONDITION
With the vehicle above 80 KMH (50 MPH) for over 30 seconds, the power steering pressure switch remains open.

POSSIBLE CAUSES
- Power steering pressure switch operation
- Ground circuit
- Power steering pressure switch sense circuit shorted to ground
- Power steering pressure sense circuit open
- PCM