Operation CHARM: Car repair manuals for everyone.

Relays Test

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. If the data list changes, the Fuel Pump Relay is normal.
8. Select F1 : A/C Clutch Relay.
9. *Run the Engine at idle.




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




12. Select F2: Low Fan Relay.

13. Push "On" and "Off" of soft key.
Control Low Fan Relay and check a data list.
If the data list changes, the Low Fan Relay is normal.
Run the Fan Motor.




14. Select F3 : High Fan Relay.

15. Push "On" and "Off" of soft key.
Control High Fan Relay and check a data list.
If the data list changes, the High Fan Relay is normal.
Run the Fan Motor.