FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

FF15 - Check PSPS Operation



- Key "OFF".

- Install tachometer.

- Start engine and idle in PARK/NEUTRAL.

- Disconnect Power Steering Pressure (PSP) switch.

- Jumper PSP circuit of PSP vehicle harness connector to chassis ground or SIG RTN.

- Does rpm increase?

Yes -- Replace PSP switch. Remove jumper. Re-evaluate symptom.

No -- Remove jumper. Go to FF16. FF16 - Check Continuity of PSPS Circuits