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5.3 V-8, This occurs usually at idle or when coasting. I cycle the shut off by opening and locking the door 3 times. The engine cuts off when the code comes in. The reduced power light comes on, as does the  reduced traction light. It is occurring more frequently. I have seen contradictory posts on the cause, but none have had the same lights I am seeing. I have just looked at the control module location, and see no problems. Under the cover there are 2 different modules. Since programming seems needed, I am guessing it is not an amateur job. Thank you for your help.
Vehicle: 2006 Chevy Trailblazer 5.3l V-8

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P0601 Control module ROM

There is a variety of post chatter for this code, It important to determine which module store the code. The ECM or TCM. as for this code it is not module specific. For the ECM it is read only memory or TCM read only memory. When it is the ECM the APP and TPS sensor has to be evaluated. As long as there is no APP code and or TPS code reprogram the ECM, If the TCM reprogram the TCM.

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