2011 Dodge Nitro Owner Manual - Page 407

404 MAINTAINING YOUR VEHICLE Tighten the gas cap until a ЉclickingЉ sound is heard. This Normally, the OBD II system will be ready. The OBD II system may not be ready if your vehicle was recently is an indication that the gas cap is properly tightened. serviced, recently had a dead battery or a battery replacePress the odometer reset button to turn the message off. ment. If the OBD II system should be determined not If the problem persists, the message will appear the next ready for the I/M test, your vehicle may fail the test. time the vehicle is started. This might indicate a damaged cap. If the problem is detected twice in a row, the system Your vehicle has a simple ignition key-actuated test, will turn on the MIL. Resolving the problem will turn the which you can use prior to going to the test station. To check if your vehicle's OBD II system is ready, you must MIL light off. do the following: EMISSIONS INSPECTION AND MAINTENANCE 1. Turn the ignition switch to the ON position, but do not PROGRAMS In some localities, it may be a legal requirement to pass crank or start the engine. an inspection of your vehicle's emissions control system. 2. If you crank or start the engine, you will have to start Failure to pass could prevent vehicle registration. this test over. For states that require an Inspection and Mainte- 3. As soon as you turn the ignition switch to the ON nance (I/M), this check verifies the "Malfunction position, you will see the MIL symbol come on as part of Indicator Light (MIL)" is functioning and is not a normal bulb check. on when the engine is running, and that the OBD II system is ready for testing.