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Immobilizer Control Unit (ICU) : Connector Pin Assignment (4JA1-TC 2.5L/4JH1-TC 3.0L)
Antenna coil positive A-2 N.C A-3 Antenna coil negative
B-1 Starter relay B-2 Ground B-3 Voltage from ignition switch ON B-4 Back up Voltage supply B-5 To Tech-2 B-6 N.C B-7 Communication: carry on line from ECM to immobilizer (Check Engine Lamp) B-8 Communication: carry on line from immobilizer to ECM
B2 B6 B5 A1 A3 B3 B7 B8 A2 B1 B4
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