Power Steering Pressure Sensor Malfunction
Table of contents
P1550 MERCURY Possible Causes
- Faulty Power Steering Pressure (PSP)
- PSP harness is open or shorted
- PSP circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How do I fix code P1550 MERCURY?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1550 MERCURY code
The cost of diagnosing the P1550 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
The Powertrain Control Module (PCM) has detected the Power Steering Pressure (PSP) input has fallen out of expected range.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1550 MERCURY Description
The Power Steering Pressure (PSP) sensor input signal to the Powertrain Control Module (PCM) is continuously monitored. The test fails when the signal falls out of a maximum or minimum calibrated range.