940 SE L4-2320cc 2.3L SOHC Turbo VIN 87 B230FT (1991)
Overboost Switch: Testing and Inspection
NOTE: While trouble shooting, always check the wiring, fuses and connectors for good condition and routing. Also check ground locations for good
connection. Use the wiring diagrams found in SCHEMATIC DIAGRAMS to supplement your testing efforts.
1.
Connect VOLVO pressure tester/gauge #5230 or equivalent to hose at intake manifold.
Checking Switch In Engine Compartment
Checking Switch Under Dash Above Brake Pedal
2.
Pressure switch is located next to coolant expansion tank or under dash above brake pedal.
