DMTL, Test Result And Tank System, Test Result = "Unknown"

Engine control module (ECM) cannot perform check of tank system. This may be due to the conditions for start of the quick-test not being fulfilled, that they have changed during the course of the test, or that a problem has occurred during troubleshooting.

• Check that all conditions for start of the quick-test are fulfilled.
• Visually check hoses and connections on leakage diagnostics unit, canister, EVAP-valve, and filler pipe. Check for damage or incorrect/loose installation.
• Remedy as necessary.
• Restart the test.

• Continue 

  Refer to PERFORM QUICK-TEST TANK SYSTEM