LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Cadillac
>>
1989
>>
Seville Base
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
DFI ECM Tests W/Codes
>>
Diagnostic Charts
>>
ECM Code EO40 - Open Power Steering Pressure Switch Circuit
>>
Test Conditions
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Test Conditions
Vehicle speed greater than or equal to 40 MPH.