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Home >> Isuzu >> 2000 >> Trooper S V6-3.5L >> Repair and Diagnosis >> Powertrain Management >> Transmission Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Testing >> TECH2 - Miscellaneous Tests >> Relays Test
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Relays Test


Relays Test
This test is conducted to check Fuel Pump Relay and A/C Clutch 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 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. Turn "On" and "Off" A/C Switch.
12. Control A/C Clutch Relay and check data list.
- If the data list changes, the Fuel Pump Relay is normal.
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