DTC Troubleshooting: P0443 (92)
  1. Measure the resistance between EVAP canister purge valve 2P connector terminals No. 1 and No. 2.
Is there about 25 Ω at room temperature?
YES -
Go to Step 30 .
NO -
Go to Step 23 .
  1. Replace the EVAP canister purge valve.
  1. Reconnect all connectors.
  1. Turn the ignition switch to ON (II).
  1. Reset the ECM with the HDS.
  1. Do the ECM idle learn procedure.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0443 indicated?
YES -
Check for poor connections or loose terminals at the EVAP canister purge valve and the ECM, then go to Step 1 .
NO -
Go to Step 29 .
  1. Monitor the OBD STATUS for DTC P0443 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES -
Troubleshooting is complete. If any other Temporary DTCs or DTCs were indicated in Step 28 , go to the indicated DTC's troubleshooting.■
NO -
If the screen indicates FAILED, check for poor connections or loose terminals at the EVAP canister purge valve and the ECM, then go to Step 1 . If the screen indicates EXECUTING, OUT OF CONDITION, or NOT COMPLETED, keep idling until a result comes on.
  1. Reconnect all connectors.
  1. Update the ECM if it does not have the latest software, or substitute a known-good ECM.
  1. Start the engine.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0443 indicated?
YES -
Check for poor connections or loose terminals at the EVAP canister purge valve and the ECM. If the ECM was updated, substitute a known-good ECM, then go to Step 32 . If the ECM was substituted, go to Step 1 .
NO -
Go to Step 34 .
  1. Monitor the OBD STATUS for DTC P0443 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES -
If the ECM was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM. If any other Temporary DTCs or DTCs were indicated in Step 23 , go to the indicated DTC's troubleshooting.■
NO -
If the screen indicates FAILED, check for poor connections or loose terminals at the EVAP canister purge valve and the ECM. If the ECM was updated, substitute a known-good ECM, then go to Step 32 . If the ECM was substituted, go to Step 1 . If the screen indicates EXECUTING, OUT OF CONDITION, or NOT COMPLETED, keep idling until a result comes on.