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JEEFR, pages 2-15 to 2-17 in the owners manual. “Service Required” will only be seen on engines equipped with Catalysts Emissions System for the CARB (California Air Resources Board) and EPA requirements as of June 30, 2006. Several of the typical sensors are now part of the emissions related faults, such as the Knock system and Ignition Control system as well as the oxygen sensors and Catalyst Monitoring system. Be advised: Per EPA and CARB requirements, any emissions related fault, even if it is no longer active, will not reset and clear the alarm until the engine has completed three complete warm up cycles from 90º to 150º F. You have the ability to use the OBD-M tool in emissions related faults also. Hope this steers you in the right direction.

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Has anybody gotten a message " warning service required" alarm sounds and then you have to exit out. No codes given.

Thanks Jeff

Yep, and it had nothing to do with exhaust....it was all about voltage issues. My voltage regulator on the ALT went bad, threw those warnings... voltage was fluctating from 12-17.3 while running. Replaced the Alt, all back to normal.

Several posts in the last few weeks on here about voltage issues casing the Malivue to thro that warning....pedal position sensor in the throttle body volts not matching the volts at the computer will throw that code... ... you gotta get into the fault list of the Malivue and see what it says... go to the ACTIVE FAULTS list. Let us know what the fault is.

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Mine started throwing a code and for the life of me I cannot remember what it was, but it had to do with an o2 sensor, and all it was, the plastic cover over the engine was in backwards and touching the sensors. I found the code on the web and told my dealer, he made a call and told me to make sure the cover was in right. Hopefully its that easy for you.

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