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Home >> Isuzu >> 2002 >> Rodeo Sport 2WD L4-2.2L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> TECH 2 - Miscellaneous Tests >> Relays Test
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Relays Test

This test is conducted to check Fuel Pump Relay, A/C Clutch Low Fan and High Fan for proper operation.

Tech 2 must be used for this test.

Test Procedure:
1. Connect Tech 2 to the vehicle DLC.
2. Ignition SW is "On".




3. Select F3: Miscellaneous Test in the Application Menu.




4. Select F1:Relay Test in the Miscellaneous Test.




5. Select F0:Fuel Pump Relay.




6. Push "On" soft key.
7. Control Fuel Pump Relay and check a data list.
8. If the data list changes, the Fuel Pump Relay is normal.
9. Select F1:A/C Clutch Relay.
10. *Run the Engine at idle.




11. Turn on Air Conditioning.
12. Push "On" and "Off" of soft key.
13. Control A/C Clutch Relay and check a data list.
14. If the data list changes, the A/C Clutch Relay is normal.




15. Select F2: Low Fan Relay.
16. Push "On" and "Off" of soft key.
17. Control Low Fan Relay and check a data list. 18. If the data list changes, the Low Fan Relay is normal.
19. Run the Fan Motor.




20. Select F3: High Fan Relay.
21. Push "On" and "Off" of soft key.
22. Control High Fan Relay and check a data list.
If the data list changes, the High Fan Relay is normal.
23. Run the Fan Motor.
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