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Home >> Suzuki >> 2012 >> Equator Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Engine Cooling System) >> Diagnostic Information and Procedures >> Cooling Fan Inoperative >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the cooling fan relays.
  2. Ignition ON, one at a time, verify that a test lamp illuminates between the relay switch B+ circuit terminal 30 and ground.
    • If the test lamp does not illuminate, test the relay switch B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the relay switch B+ circuit fuse is open, test all components connected to the relay switch B+ circuit and replace as necessary.
  3. Connect a 30A fused jumper between the relay switch B+ circuit terminal 30 and the relay supply circuit terminal 87 at the FAN 2 relay connector. This will in complete the left side or main fan ground circuit. Leave this jumper in place for the remainder of this procedure.
  4. One at a time, connect a 30A fused jumper between the relay switch B+ circuit terminal 30 and the relay switch supply circuit terminal 87 of the applicable fan relay. Verify the appropriate fan turns ON.
    • If the appropriate fan does not turn ON, test the relay switch supply circuit for a short to ground or open/high resistance. If the circuit tests normal, test the fan ground circuit for open/high resistance. If the circuit tests normal, replace the fan.
  5. If all circuits test normal, test or replace the appropriate cooling fan relays.
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