P1650low severityPowertrain
PSP Switch Out of Self-Test Range
on 2003 Ford Excursion 6.8L V10 Triton · 4WD
What this code means
The Power Steering Pressure switch is not within the expected range during the KOER self-test. The PSP switch tells the PCM when the steering is being turned so it can increase idle speed to prevent stalling.
Symptoms
- Check Engine Light
- Self-test failure
- Engine may stall when turning steering wheel at idle
Common causes
- PSP switch not actuated during test (steering wheel must be turned)
- Faulty PSP switch
- Wiring issue
- Low power steering fluid
Diagnostic steps
- Turn steering wheel during KOER self-test
- Test PSP switch operation
- Check power steering fluid level
- Inspect PSP switch wiring
Repair notes
Turn steering wheel during self-test. Replace PSP switch if faulty.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1