DTC Troubleshooting: P0403 (182)
DTC P0403:
 EGR Control Solenoid Valve Circuit Open
NOTE: Before you troubleshoot, record all freeze data and review the general troubleshooting information.
  1. Turn the ignition switch ON (II).
  1. Clear the DTC with the HDS.
  1. Start the engine, and hold the engine speed at 2,000 rpm (min −1 ) without load.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0403 indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the EGR control solenoid valve and the ECM.■
  1. Check for Temporary DTCs or DTCs with the HDS.
Are DTC P0045, P0403 and P2008 indicated at same time?
YES -
Go to Step 6 .
NO -
Go to Step 8 .
  1. Turn the ignition switch OFF.
  1. Check the No. 8 IGP2 (15 A) fuse in the under-hood fuse/relay box.
Is the fuse OK?
YES -
Replace the under-hood fuse/relay box, then go to Step 19 .
NO -
Repair short in the wire between under-hood fuse/relay box and the EGR control solenoid valve, the IMRC solenoid valve, the turbocharger boost control solenoid valve, the reverse lock solenoid valve, the engine oil level sensor, the fuel heater relay. Also replace the No. 8 IGP2 (15 A) fuse then go to Step 19 .
  1. Turn the ignition switch OFF.
  1. Disconnect the EGR control solenoid valve 2P connector.
  1. Turn the ignition switch ON (II).
  1. Measure voltage between EGR control solenoid valve 2P connector terminal No. 1 and body ground.
Is there battery voltage?
YES -
Go to Step 12 .
NO -
Repair open in the wire between the under-hood fuse/relay box and the EGR control solenoid valve, then go to Step 19 .