ladimer Posted August 24, 2019 Share Posted August 24, 2019 I have a 2012 mack MP8 with engine light and derate Computer reads no signal to the actuator. Have checked all connections, fuses and wiring for damage. Have purchased a new actuator and hooked it up to the harness to see if it cycles before actually installing it. There is no response when the ignition switch is turned on. Anyone got any ideas? Also checked all the fuses. Quote Link to comment Share on other sites More sharing options...
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