M0140.docx | Rev 2.5 | Modified on 26/06/2019 | © Remote Control Technologies Pty Ltd
11 | 16
Test Procedure
Test each circuit individually.
Coolant Level Sensor
Every 250 hours or during vehicle scheduled service;
1. Turn the ignition switch to the ON position and verify the coolant level indicator is not illuminated.
2. Disconnect the wire from the coolant level sensor.
3. Verify, after five seconds, that the coolant level indicator is now illuminated.
4. Reconnect the wire to the coolant level sensor.
5. Remove sufficient coolant from the engine to allow the level to fall below the sensor.
6. Verify that the coolant level indicator is illuminated.
7.
Refill coolant to the manufacturer’s specifications.
8. Check that the coolant level indicator is no longer illuminated.
9. Turn the ignition off.
Coolant Temperature Switch
Every 250 hours or during vehicle scheduled service;
1. Turn the ignition switch to the ON position.
2. Check that the coolant temperature indicator is not illuminated.
3. Disconnect 1 x wire at the coolant temperature switch.
4. Verify, after one second, that the coolant temperature indicator is now illuminated.
5. Turn the ignition off and reconnect the electrical wiring.
Engine Oil Pressure Switch
Every 250 hours or during vehicle scheduled service;
1. Turn the ignition switch to the ON position.
2. Verify that the fault alarm is sounding and the oil pressure indicator is illuminated.
3. Bridge the wires at the oil pressure switch.
4. Verify, after one second, that alarm has ceased and the oil pressure indicator is no longer illuminated.
5. Remove bridging connector.
6. Start and run vehicle until engine oil pressure reaches normal operating pressure.
7. Verify that alarming has ceased and the oil pressure indicator is no longer illuminated.