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Home >> Suzuki >> 2007 >> SX4 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 236 (Engine Control System - DTC P0221 Through P0459) >> DTC P0403: Exhaust Gas Recirculation (EGR) Solenoid Control Circuit >> DTC Troubleshooting
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DTC Troubleshooting

WARNING: This page is about a different car, the 2006 Suzuki Verona. However, it is still accessible from the selected car via links, so may be relevant.
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.
  2. Disconnect the EGR solenoid connector.
  3. Check for an open or a short in the wire between the EGR connector terminal 5 and the main relay terminal 87.
  4. Check for an open or a short in the wire between the EGR connector terminal 1 and the ECM connector terminal A46.

Is the problem found?		 - Go to Step 3. Go to Step 4.
3
  1. Repair the wire or the connector terminal as needed.
  2. Using the scan tool, clear the Diagnostic Trouble Codes (DTCs).
  3. Perform an ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK .

Is the repair complete?		 - System OK -
4
  1. Connect the EGR solenoid connector.
  2. Turn the ignition switch to ON.
  3. Using the Digital Voltmeter (DVM), measure the voltage between the EGR connector terminal 1 and the battery positive.

Is the voltage reading between the specified values?		 12 - 13 V Go to Step 6. Go to Step 5.
5
  1. Replace the EGR valve.
  2. Using the scan tool, clear the Diagnostic Trouble Codes (DTCs).
  3. Perform an ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK .

Is the repair complete?		 - System OK -
6
  1. Replace the ECM.
  2. Perform an ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK .

Is the repair complete?		 - System OK -
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