2010 Jeep Wrangler Owner's Manual - Page 458
2010 Jeep Wrangler Manual
Page 458 highlights
MAINTAINING YOUR VEHICLE 457 the message will appear the next time the vehicle is serviced, recently had a dead battery or a battery replacestarted. This might indicate a damaged cap. If the prob- ment. If the OBD II system should be determined not lem is detected twice in a row, the system will turn on the ready for the I/M test, your vehicle may fail the test. MIL. Resolving the problem will turn the MIL off. Your vehicle has a simple ignition key-actuated test, which you can use prior to going to the test station. To EMISSIONS INSPECTION AND MAINTENANCE check if your vehicle's OBD II system is ready, you must PROGRAMS In some localities, it may be a legal requirement to pass do the following: an inspection of your vehicle's emissions control system. 1. Turn the ignition switch to the ON position, but do not Failure to pass could prevent vehicle registration. crank or start the engine. For states that require an Inspection and Maintenance (I/M), this check verifies the "Malfunction Indicator Light (MIL)" is functioning and is not on when the engine is running, and that the OBD II system is ready for testing. 2. If you crank or start the engine, you will have to start this test over. 3. As soon as you turn the ignition switch to the ON position, you will see the MIL symbol come on as part of a normal bulb check. 7 Normally, the OBD II system will be ready. The OBD II system may not be ready if your vehicle was recently 4. Approximately 15 seconds later, one of two things will happen: