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Home >> Suzuki >> 2006 >> Verona Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - DTC P0221 Through P0459 >> DTC P0230: Fuel Pump Relay Control Circuit >> DTC Troubleshooting
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DTC Troubleshooting

DTC TROUBLESHOOTING CHART

Step Action Value (s) Yes No
1 Perform an ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK .
Is the system check complete?		 - Go to Step 2. Go to ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK .
2
  1. Turn the ignition switch to LOCK for 10 seconds.
  2. Turn the ignition switch to ON.
  3. Listen for in-tank fuel pump operation.

Does the fuel pump operate?		 2 sec. Go to Diagnostic Aids . Go to Step 3.
3
  1. Turn the ignition switch to ON.
  2. Disconnect the fuel pump relay.
  3. Connect a test light between the fuel pump relay connector terminal 86 and ground.
  4. Turn the ignition switch to ON.

Is the test light ON?		 - Go to Step 4. Go to Step 10.
4
  1. Turn the ignition switch to ON.
  2. Disconnect the fuel pump relay.
  3. Connect a test light between the fuel pump relay connector terminal 85 and B+.
  4. Turn the ignition switch to ON.

Is the test light ON?		 - Go to Step 5. Go to Step 9.
5
  1. Turn the ignition switch to LOCK.
  2. Connect a test light between the fuel pump relay connector terminal 30 and ground.

Is the test light ON?		 - Go to Step 6. Go to Step 8.
6 Check for short to ground in the wire between the fuel pump relay connector terminal 87 and fuel pump connector.
Is the problem found?		 - Go to Step 7. Go to Step 8.
7
  1. Repair the wire between the fuel pump relay connector terminal 87 and fuel pump connector terminal 3.
  2. Install the fuel pump relay.
  3. Turn the engine OFF for 10 seconds.
  4. Clear any DTCs from ECM.
  5. Turn the ignition switch to ON.

Does the fuel pump operate?		 2 sec. Go to Step 14. -
8
  1. Replace the fuel pump relay.
  2. Turn the ignition OFF for 10 seconds.
  3. Clear any DTCs from ECM.
  4. Turn the ignition switch to ON.

Does the fuel pump operate?		 2 sec. Go to Step 14. Go to Step 9.
9 Check for a short to ground wire between the fuel pump relay connector terminal 85 and the ignition after key ON (IGN 1).
Is the problem found?		 - Go to Step 11. Go to Step 10.
10 Check for a short to ground wire between the fuel pump relay connector terminal 86 and the ECM connector terminal K70.
Is the problem found?		 - Go to Step 12. Go to Step 13.
11
  1. Repair the wire between the fuel pump relay connector terminal 85 and the ignition key ON (IGN1).
  2. Install the fuel pump relay.
  3. Turn the ignition OFF for 10 seconds.
  4. Clear any DTCs from ECM.
  5. Turn the ignition switch to ON.

Does the fuel pump operate?		 2 sec. System OK Go to Step 13.
12
  1. Repair the wire between the fuel pump relay connector terminal 86 and the ECM connector terminal K70.
  2. Install the fuel pump relay.
  3. Turn the ignition OFF for 10 seconds.
  4. Clear any DTCs from ECM.
  5. Turn the ignition switch to ON.

Does the fuel pump operate?		 2 sec. System OK Go to Step 13.
13
  1. Replace the ECM.
  2. Turn the ignition OFF for 10 seconds.
  3. Clear any DTCs from ECM.
  4. Turn the ignition switch to ON.

Does the fuel pump operate?		 2 sec. System OK Go to Step 14.
14
  1. Using the scan tool, clear the DTCs.
  2. Start the engine and idle at normal operating temperature.
  3. Operate the vehicle within the conditions for setting this DTC ad specified in the supporting text.

Does the scan tool indicate that this diagnostic has run and passed?		 - Go to Step 15. Go to Step 2.
15 Check if any additional DTCs are set.
Are any DTCs displayed that have not been diagnosed?		 - Go to applicable DTC Table . System OK
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