2009 Dodge Ram 1500 Pickup Owner Manual - Page 448
2009 Dodge Ram 1500 Pickup Manual
Page 448 highlights
446 MAINTAINING YOUR VEHICLE 5. Approximately 15 seconds later, one of two things will system to update. A recheck with the above test routine happen: may then indicate that the system is now ready. a. The MIL will flash for about 10 seconds and then return to being fully illuminated until you turn OFF the ignition or start the engine. This means that your vehicle's OBD II system is not ready and you should not proceed to the I/M station. Regardless of whether your vehicle's OBD II system is ready or not, if the MIL is illuminated during normal vehicle operation you should have your vehicle serviced before going to the I/M station. The I/M station can fail your vehicle because the MIL is on with the engine running. b. The MIL will not flash at all and will remain fully illuminated until you turn OFF the ignition or start the REPLACEMENT PARTS engine. This means that your vehicle's OBD II system Use of genuine MOPAR parts for normal/scheduled is ready and you can proceed to the I/M station. maintenance and repairs is highly recommended to enIf your OBD II system is not ready, you should see your sure the designed performance. Damage or failures authorized dealer or repair facility. If your vehicle was caused by the use of non-MOPAR parts for maintenance recently serviced or had a battery failure or replacement, and repairs will not be covered by the manufacturer's you may need to do nothing more than drive your warranty. vehicle as you normally would in order for your OBD II