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Home >> Suzuki >> 2005 >> Grand Vitara EX, 4WD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> H25 Engine >> Diagnostic Information and Procedures >> Fuel Pump Circuit Check >> Troubleshooting
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Fuel Pump Circuit Check: Troubleshooting

TROUBLESHOOTING CHART

Step Action Yes No
1 Fuel pump operation check 
  1. Remove fuel filler cap.
  2. Turn On ignition switch.

Is fuel pump operation sound heard for 3 sec. after ignition switch ON? 		 Fuel pump circuit is in good condition. Go to Step 2.
2 Fuel pump circuit check 
  1. With ignition switch OFF, remove fuel pump relay (1) from relay box.
  2. Using service wire (2), connect "BLU/BLK" wire terminal and "PNK/BLK" wire terminal in relay box.
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Is fuel pump operation sound heard with ignition switch ON? 		 Go to Step 3. "BLU/BLK", "PNK/BLK" wire open. "BLK" wire open, poor connection. Fuel pump malfunction.
3 Fuel pump relay check 
  1. Check fuel pump relay referring to "FUEL PUMP RELAY INSPECTION ".

Is it in good condition? 		 "BLK/WHT", "WHT/ GRN" wire open. Faulty fuel pump relay.
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