Ranger 4WD V6-4.0L (2009)
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Wait 10 seconds.
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Enter the following diagnostic mode on the scan tool: Self-Test.
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Retrieve the continuous memory DTCs from all modules.
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Is DTC U0155 set in the ACM, DSM, audio DSP module or PAM?
Yes
INSTALL a new IC.
No
INSTALL a new SJB. REFER to Smart Junction Box (SJB) See: Power and Ground Distribution/Power Distribution Module/Service and Repair.
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