Galant L4-1997cc 2.0L SOHC 16 Valve (1993)
Power Steering Pressure Switch: Testing and Inspection
Switch Operation and Harness Tests
Power Steering Load Switch
Engine Control Module Connector--For Pin Applications See Components
To test the Power Steering Switch, located on the P/S pump, proceed as follows:
COMPONENT TEST
1. Start the engine and warm to operating temperature.
2. Disconnect the power steering load switch (on the P/S pump).
3. Using an Ohm meter check for continuity between the switch terminal and ground.
Continuity:
-
Should not exist when the steering wheel is stationary.
-
Should exist when the steering wheel is being turned.
HARNESS TEST
1. Disconnect the power steering pressure sensor connector and turn the key to the ON position.
2. Using a Voltmeter, check the Voltage between switch harness terminal 1 and ground.
Voltage: ............................................................................................................................................................................................ System Voltage
3. Turn the key to the OFF position, disconnect the negative battery cable and the ECU connector.
4. Using an Ohm meter, check for continuity between ECU harness connector terminal 107 and switch harness connector terminal 1.
Continuity: ............................................................................................................................................................................................ Should exist
5. Using an Ohm meter, check for continuity between ECU harness connector terminal 107 and ground.
Continuity: ...................................................................................................................................................................................... Should not exist
If any of the previous tests produce unsatisfactory results, the harness will need to be repaired or replaced. Once repairs have been completed, road
test the vehicle to confirm that the repair has corrected the problem.
